精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

精英家教網 > 初中英語 > 題目詳情

    Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their back-packs.

    “It hurts my back when I run.”said Oberlin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack, because it’s too heavy.”

    Oberlin is among the students whose backpacks were overweighed in a recent study.

    They had regular backpacks with two straps to carry them, but a number of students with heavy loads had switched to rolling backpacks.

    Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpack because she was starting to have back pain.

    How much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight.

    A few students had one suggestion to lighten the load: less homework.

    P.S.

    Doctor’s suggestions:

    1Lighten the load. Clean out binders and take home only the books you need that night.

    2Wide straps are better. They send out the weight over your shoulders more evenly. And be sure to wear both straps rather than hang the pack over one shoulder.

    3Pack smart. The heavier things should be packed close to the back.

    4Bend both knees when you pick up the pack, and don’t just bend over at the waist.

1. ___________ is the main idea of the text.

    A. The problems of backpacks is worth studying

    B. The problem made by heavy backpacks

    C. What is the best backpack for a student

    D. How to make students’ backpacks light

2. According to Oberlin Reyes and Shirley Park, we know ___________.

    A. students have to do much homework

    B. students have to carry heavy backpacks

    C. backpacks without wheels are bad for students

    D. too much homework leaves students no free time

3. The expression“switched to”in the text perhaps means __________.

    A. started to use                                 B. turned on

    C. caught up                                      D. used for

4. According to the passage, it’s better for a student of 40 kilograms to carry a backpack of ___________ at most by the words of experts.

    A. 10kg                 B. 8kg                   C. 6kg                   D. 7kg

5. If students follow the doctor’s suggestions they ____________.

    A. may lighten their backpack

    B. can learn how to help themselves

    C. may feel their backpacks are lighter

    D. will know how to wear backpacks

1、D B A C C

請在這里輸入關鍵詞:
相關習題

科目:初中英語 來源:2010—2011學年黑龍江省虎林市八零五農場學校初一上學期期末考試英語卷 題型:閱讀理解


Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags)
“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”
Oberlin was among students whose backpacks were weighed for a week in a recent study.
They had regular backpacks with two straps(帶子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).
Shirley Park, whose backpack weighed 10 kilograms,said she changed to a rolling backpack because she was starting to have back  pain.
How much is too much?Experts say students should carry no more than 10 to 15 percent of their own body weight.
A few students had one suggestion to lighten the load:less homework.
P.S.( 附)Doctor’s suggestion:
1 Lighten the load. Clean out binders(活頁材料)and take home only the books you need that night.
2 Wide straps are better. They send out the weight over your shoulders more evenly(均勻)。 And be sure to wear both straps rather than hanging the pack over one shoulder.
3. Pack smart. The heavier things should be packed closed to the back.
4.Bend both knees when you pich up the pack ,and don’t just bend over  at the waist.(腰)
【小題1】“_________”is the main idea of the text.
A The problem of backpacks is worth studying.
B The problem made by heavy backpacks
C What is the best backpack for a student.
D      How to make students’backpacks light.
【小題2】According to Oberlin Reyes and Shirley Park, we know________.
A students have to do too much homework
B students have to carry several backpacks
C backpacks without wheels are bad for students
D too much homework leaves students no free time
【小題3】The expression “switched to” in the text perhaps means________.
A started to use  B turned to  C caught up   D used for
【小題4】According to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.
A 10kg    B 8kg  C 6kg    D 7kg
【小題5】 If students follow the doctor’s suggestions they ________.
A may lighten their backpacks
B can learn how to help themselves
C may feel their backpacks are lighter
D will know how to wear backpacks

查看答案和解析>>

科目:初中英語 來源:2013屆青海民和回族土族自治縣五校九年級下期期中聯考英語卷(帶解析) 題型:閱讀理解

Are you carrying too much on your back at school? You’re not alone. Back experts(專家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .
“It hurts my back when I run,” said Ebelin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack because it’s too heavy.” Students have to carry heavy backpacks on their backs for a whole week’s study. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(帶子) to carry them, but a number of students with heavy loads(負擔) have switched to rolling backpacks. The backpacks have wheels and can roll on the ground. Shirley Park’s backpack weighs 10 kilos, and she said, “I’ll change to a rolling backpack because I am starting to have back pain.”
How much is too much? Experts say that students should carry no more than 10% to 15% of their own body weight. A few students have had a good idea to lighten(減輕) the load: less homework.
Doctor’s suggestions:
Lighten the load. Take home only the books the students need that day.
(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.
(3) The heaviest things should be packed closest to the back.
(4) Bend(彎曲) both knees when you pick up the pack, don’t just bend over the waist(腰).
【小題1】The main idea of the passage is about _______.

A.the problems made by rolling backpacks
B.the advantage of backpacks
C.the best backpacks for students
D.how to lighten students’ backpacks
【小題2】From what Ebelin Reyes and Shirley Park said, we know______.
A.students like to carry heavy backpacks
B.students have to do a lot of homework
C.backpacks with wheels are bad for students
D.students have no time to play because of heavy backpacks
【小題3】The underlined word “switch to” means______.
A.use forB.turn toC.catch upD.begin to use
【小題4】According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most.
A.10 kilosB.8 kilosC.6 kilosD.7 kilos
【小題5】If students follow the doctor’s suggestions, they______.
A.may do less homework
B.may feel their backpacks are lighter
C.can learn how to enjoy themselves
D.will know why to wear heavy backpacks

查看答案和解析>>

科目:初中英語 來源:2012-2013學年青海民和回族土族自治縣五校九年級下期期中聯考英語卷(解析版) 題型:閱讀理解

Are you carrying too much on your back at school? You’re not alone. Back experts(專家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .

“It hurts my back when I run,” said Ebelin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack because it’s too heavy.” Students have to carry heavy backpacks on their backs for a whole week’s study. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(帶子) to carry them, but a number of students with heavy loads(負擔) have switched to rolling backpacks. The backpacks have wheels and can roll on the ground. Shirley Park’s backpack weighs 10 kilos, and she said, “I’ll change to a rolling backpack because I am starting to have back pain.”

How much is too much? Experts say that students should carry no more than 10% to 15% of their own body weight. A few students have had a good idea to lighten(減輕) the load: less homework.

Doctor’s suggestions:

Lighten the load. Take home only the books the students need that day.

(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.

(3) The heaviest things should be packed closest to the back.

(4) Bend(彎曲) both knees when you pick up the pack, don’t just bend over the waist(腰).

1.The main idea of the passage is about _______.

A.the problems made by rolling backpacks

B.the advantage of backpacks

C.the best backpacks for students

D.how to lighten students’ backpacks

2.From what Ebelin Reyes and Shirley Park said, we know______.

A.students like to carry heavy backpacks

B.students have to do a lot of homework

C.backpacks with wheels are bad for students

D.students have no time to play because of heavy backpacks

3.The underlined word “switch to” means______.

A.use for           B.turn to            C.catch up          D.begin to use

4.According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most.

A.10 kilos           B.8 kilos            C.6 kilos            D.7 kilos

5.If students follow the doctor’s suggestions, they______.

A.may do less homework

B.may feel their backpacks are lighter

C.can learn how to enjoy themselves

D.will know why to wear heavy backpacks

 

查看答案和解析>>

科目:初中英語 來源:2009-2010學年山東省德州市初二下學期期中考試英語卷 題型:閱讀理解

Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags)

“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”

Oberlin was among students whose backpacks were weighed for a week in a recent study.

They had regular backpacks with two straps(帶子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).

Shirley Park, whose backpack weighed 10 kilograms,said she changed to a rolling backpack because she was starting to have back  pain.

How much is too much?Experts say students should carry no more than 10 to 15 percent of their own body weight.

A few students had one suggestion to lighten the load:less homework.

P.S.( 附)Doctor’s suggestion:

1 Lighten the load. Clean out binders(活頁材料)and take home only the books you need that night.

2 Wide straps are better. They send out the weight over your shoulders more evenly(均勻)。 And be sure to wear both straps rather than hanging the pack over one shoulder.

3. Pack smart. The heavier things should be packed closed to the back.

4.Bend both knees when you pich up the pack ,and don’t just bend over  at the waist.(腰)

1.“_________”is the main idea of the text.

A The problem of backpacks is worth studying.

B The problem made by heavy backpacks

C What is the best backpack for a student.

D     How to make students’backpacks light.

2.According to Oberlin Reyes and Shirley Park, we know________.

A students have to do too much homework

B students have to carry several backpacks

C backpacks without wheels are bad for students

D too much homework leaves students no free time

3.The expression “switched to” in the text perhaps means________.

A started to use  B turned to  C caught up   D used for

4.According to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.

A 10kg    B 8kg  C 6kg    D 7kg

5. If students follow the doctor’s suggestions they ________.

A may lighten their backpacks

B can learn how to help themselves

C may feel their backpacks are lighter

D will know how to wear backpacks

 

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Are you carrying too much on your back at school? You’re not alone. Back experts(專家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .
“It hurts my back when I run,” said Ebelin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack because it’s too heavy.” Students have to carry heavy backpacks on their backs for a whole week’s study. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(帶子) to carry them, but a number of students with heavy loads(負擔) have switched to rolling backpacks. The backpacks have wheels and can roll on the ground. Shirley Park’s backpack weighs 10 kilos, and she said, “I’ll change to a rolling backpack because I am starting to have back pain.”
How much is too much? Experts say that students should carry no more than 10% to 15% of their own body weight. A few students have had a good idea to lighten(減輕) the load: less homework.
Doctor’s suggestions:
Lighten the load. Take home only the books the students need that day.
(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.
(3) The heaviest things should be packed closest to the back.
(4) Bend(彎曲) both knees when you pick up the pack, don’t just bend over the waist(腰).
小題1:The main idea of the passage is about _______.
A.the problems made by rolling backpacks
B.the advantage of backpacks
C.the best backpacks for students
D.how to lighten students’ backpacks
小題2:From what Ebelin Reyes and Shirley Park said, we know______.
A.students like to carry heavy backpacks
B.students have to do a lot of homework
C.backpacks with wheels are bad for students
D.students have no time to play because of heavy backpacks
小題3:The underlined word “switch to” means______.
A.use forB.turn toC.catch upD.begin to use
小題4:According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most.
A.10 kilosB.8 kilosC.6 kilosD.7 kilos
小題5:If students follow the doctor’s suggestions, they______.
A.may do less homework
B.may feel their backpacks are lighter
C.can learn how to enjoy themselves
D.will know why to wear heavy backpacks

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解


Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags)
“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”
Oberlin was among students whose backpacks were weighed for a week in a recent study.
They had regular backpacks with two straps(帶子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).
Shirley Park, whose backpack weighed 10 kilograms,said she changed to a rolling backpack because she was starting to have back  pain.
How much is too much?Experts say students should carry no more than 10 to 15 percent of their own body weight.
A few students had one suggestion to lighten the load:less homework.
P.S.( 附)Doctor’s suggestion:
1 Lighten the load. Clean out binders(活頁材料)and take home only the books you need that night.
2 Wide straps are better. They send out the weight over your shoulders more evenly(均勻)。 And be sure to wear both straps rather than hanging the pack over one shoulder.
3. Pack smart. The heavier things should be packed closed to the back.
4.Bend both knees when you pich up the pack ,and don’t just bend over  at the waist.(腰)
小題1:“_________”is the main idea of the text.
A The problem of backpacks is worth studying.
B The problem made by heavy backpacks
C What is the best backpack for a student.
D      How to make students’backpacks light.
小題2:According to Oberlin Reyes and Shirley Park, we know________.
A students have to do too much homework
B students have to carry several backpacks
C backpacks without wheels are bad for students
D too much homework leaves students no free time
小題3:The expression “switched to” in the text perhaps means________.
A started to use  B turned to  C caught up   D used for
小題4:According to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.
A 10kg    B 8kg  C 6kg    D 7kg
小題5: If students follow the doctor’s suggestions they ________.
A may lighten their backpacks
B can learn how to help themselves
C may feel their backpacks are lighter
D will know how to wear backpacks

查看答案和解析>>

科目:初中英語 來源: 題型:閱讀理解

Are you carrying too much on your back at school? You’re not alone. Back experts(專家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks .
“It hurts my back when I run,” said Ebelin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack because it’s too heavy.” Students have to carry heavy backpacks on their backs for a whole week’s study. Ebelin is one of them. They have   regular(固定的)backpacks with two straps(帶子) to carry them, but a number of students with heavy loads(負擔) have switched to rolling backpacks. The backpacks have wheels and can roll on the ground. Shirley Park’s backpack weighs 10 kilos, and she said, “I’ll change to a rolling backpack because I am starting to have back pain.”
How much is too much? Experts say that students should carry no more than 10% to 15% of their own body weight. A few students have had a good idea to lighten(減輕) the load: less homework.
Doctor’s suggestions:
Lighten the load. Take home only the books the students need that day.
(2) Wide straps are better. They can send out weight over your shoulders (肩)and be sure to wear backpacks with two straps.
(3) The heaviest things should be packed closest to the back.
(4) Bend(彎曲) both knees when you pick up the pack, don’t just bend over the waist(腰)

  1. 1.

    The main idea of the passage is about _______

    1. A.
      the problems made by rolling backpacks
    2. B.
      the advantage of backpacks
    3. C.
      the best backpacks for students
    4. D.
      how to lighten students’ backpacks
  2. 2.

    From what Ebelin Reyes and Shirley Park said, we know______

    1. A.
      students like to carry heavy backpacks
    2. B.
      students have to do a lot of homework
    3. C.
      backpacks with wheels are bad for students
    4. D.
      students have no time to play because of heavy backpacks
  3. 3.

    The underlined word “switch to” means______

    1. A.
      use for
    2. B.
      turn to
    3. C.
      catch up
    4. D.
      begin to use
  4. 4.

    According to the experts, it’s better for a student of 40 kilos to carry a backpack of ____ at most

    1. A.
      10 kilos
    2. B.
      8 kilos
    3. C.
      6 kilos
    4. D.
      7 kilos
  5. 5.

    If students follow the doctor’s suggestions, they______

    1. A.
      may do less homework
    2. B.
      may feel their backpacks are lighter
    3. C.
      can learn how to enjoy themselves
    4. D.
      will know why to wear heavy backpacks

查看答案和解析>>

科目:初中英語 來源: 題型:閱讀理解

    Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their back-packs.

    “It hurts my back when I run.”said Oberlin Reyes, a student in Virginia. “It’s hard to get up the stairs with my backpack, because it’s too heavy.”

    Oberlin is among the students whose backpacks were overweighed in a recent study.

    They had regular backpacks with two straps to carry them, but a number of students with heavy loads had switched to rolling backpacks.

    Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpack because she was starting to have back pain.

    How much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight.

    A few students had one suggestion to lighten the load: less homework.

    P.S.

    Doctor’s suggestions:

    (1)Lighten the load. Clean out binders and take home only the books you need that night.

    (2)Wide straps are better. They send out the weight over your shoulders more evenly. And be sure to wear both straps rather than hang the pack over one shoulder.

    (3)Pack smart. The heavier things should be packed close to the back.

    (4)Bend both knees when you pick up the pack, and don’t just bend over at the waist.

1. ___________ is the main idea of the text.

    A. The problems of backpacks is worth studying

    B. The problem made by heavy backpacks

    C. What is the best backpack for a student

    D. How to make students’ backpacks light

2. According to Oberlin Reyes and Shirley Park, we know ___________.

    A. students have to do much homework

    B. students have to carry heavy backpacks

    C. backpacks without wheels are bad for students

    D. too much homework leaves students no free time

3. The expression“switched to”in the text perhaps means __________.

    A. started to use                                 B. turned on

    C. caught up                                      D. used for

4. According to the passage, it’s better for a student of 40 kilograms to carry a backpack of ___________ at most by the words of experts.

    A. 10kg                 B. 8kg                   C. 6kg                   D. 7kg

5. If students follow the doctor’s suggestions they ____________.

    A. may lighten their backpack

    B. can learn how to help themselves

    C. may feel their backpacks are lighter

    D. will know how to wear backpacks

查看答案和解析>>

科目:初中英語 來源: 題型:050

Are you carrying too much on your back at school?You're not alone.Back experts(專家) in the USA are worried about that young students are having back and neck problems because they are carrying too much in their backpacks.

"It hurts my back when I run,"said Ebelin Reyes,a student in Virginia."It's hard to get up the stairs with my backpack because it's too heavy."Students have to carry heavy backpacks on their backs for a whole week's study.Ebelin is one of them.They have regular backpacks with two straps(帶子)to carry them,but a number of students with heavy loads(負擔) have switched to   rolling backpacks.The backpacks have wheels and call roll on the ground.Shirley Park's backpack weighs 10 kilos,and she said,"I'll change to a rolling backpack because I am starting to have back pain."

  How much is too much?Experts say that students should carry no more than 10% to 15% of their own body weight.A few students have had a good idea to lighten(減輕)the load:less homework.

  Doctor's suggestions:

  (1)Lighten the load.Take home only the books the students need that day.

  (2)Wide straps are better.They can send out weight over your shoulders(肩) and be sure to wear backpacks with two straps.

  (3)The heaviest things should be packed closest to the back.

  (4)Bend(彎曲) both knees when you pick up the pack.Don't just bend over the waist(腰).

(1)

The main idea of the passage is about ________.

  A.the problems made by rolling backpacks

  B.the advantage of backpacks

  C.the best backpacks for students

  D.how to lighten students' backpacks

[  ]

(2)

From what Ebelin Reyes and Shirley Park said,we know ________.

  A.students like to carry heavy backpacks

  B.students have to do a lot of homework

  C.backpacks with wheels are bad for students

  D.students have no time to play because of heavy backpacks

[  ]

(3)

The underlined word"switch to"means ________.

  A.use for  B.turn to  C.catch up D.begin to use

[  ]

(4)

According to the experts,it's better for a student of 40 kilos to carry a backpack

of ________ at most.

  A.10 kilos  B.8 kilos  C.6 kilos D.7 kilos

[  ]

(5)

If students follow the doctor's suggestions,they ________.

  A.may do less homework

  B.may feel their backpacks are lighter

  C.can learn how to enjoy themselves

  D.will know why to wear heavy backpacks

[  ]

查看答案和解析>>

科目:初中英語 來源:湖北省中考真題 題型:閱讀理解

閱讀理解。
     Are you carrying too much on your back at school? You're not alone. Back experts (專家) in the USA are
worried about that young students are having back and neck problems because they are carrying too much in
their backpacks.
     "It hurts my back when I run," said Ebelin Reyes, a student in Virginia. "It's hard to get up the stairs with
my backpack because it's too heavy." Students have to carry heavy backpacks on their backs for a whole
week's study. Ebelin is one of them. They have regular (固定的) backpacks with two straps (帶子) to carry
them, but a number of students with heavy loads (負擔) have switched to rolling backpacks. The backpacks
have wheels and can roll on the ground. Shirley Park's backpack weighs 10 kilos, and she said, "I'll change
to a rolling backpack because I am starting to have back pain."
     How much is too much? Experts say that students should carry no more than 10% to 15% of their own
body weight. A few students have had a good idea to lighten (減輕) the load: less homework.
     Doctor's suggestions:
     (1) Lighten the load. Take home only the books the students need that day.
     (2) Wide straps are better. They can send out weight over your shoulders (肩) and be sure to wear
backpacks with two straps.
     (3) The heaviest things should be packed closest to the back.
     (4) Bend (彎曲) both knees when you pick up the pack, don't just bend over the waist (腰). 
1. The main idea of the passage is about _____.
A. the problems made by rolling backpacks
B. the advantage of backpacks
C. the best backpacks for students
D. how to lighten students' backpacks
2. From what Ebelin Reyes and Shirley Park said, we know _____.
A. students like to carry heavy backpacks
B. students have to do a lot of homework
C. backpacks with wheels are bad for students
D. students have no time to play because of heavy backpacks
3. The underlined word "switch to" means _____.
A. use for
B. turn to
C. catch up
D. begin to use
4. According to the experts, it's better for a student of 40 kilos to carry a backpack of _____ at most.
A. 10 kilos
B. 8 kilos
C. 6 kilos
D. 7 kilos
5. If students follow the doctor's suggestions, they _____.
A. may do less homework
B. may feel their backpacks are lighter
C. can learn how to enjoy themselves
D. will know why to wear heavy backpacks

查看答案和解析>>


同步練習冊答案
精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区
狠狠狠色丁香婷婷综合激情 | 亚洲在线视频免费观看| 成人精品视频一区二区三区尤物| 色婷婷精品久久二区二区蜜臀av| 91亚洲男人天堂| 亚洲男人的天堂在线aⅴ视频 | 午夜精品福利在线| 99精品偷自拍| 亚洲一区二区三区在线看| 成人91在线观看| 亚洲欧洲综合另类| 欧美日韩在线亚洲一区蜜芽| 亚洲午夜成aⅴ人片| 3d动漫精品啪啪| 韩国av一区二区三区| 中文字幕精品一区二区精品绿巨人| 亚洲电影第三页| 91久久精品一区二区三| 午夜精品aaa| 欧美成人激情免费网| 视频在线观看一区二区三区| 日韩欧美黄色影院| 国产福利一区二区| 精品动漫一区二区三区在线观看| 日韩电影在线免费| 久久精子c满五个校花| 成人av资源站| 亚洲国产aⅴ天堂久久| 日本久久电影网| 亚洲18女电影在线观看| 26uuu亚洲综合色| 99久久亚洲一区二区三区青草| 亚洲国产精品成人综合色在线婷婷 | 久久超级碰视频| 久久精品亚洲精品国产欧美kt∨| 欧美一区二区三区色| 美腿丝袜亚洲色图| 亚洲国产精品黑人久久久| 97久久精品人人做人人爽| 久久精品一区蜜桃臀影院| av网站免费线看精品| 日韩中文字幕av电影| 久久一区二区三区四区| 色婷婷综合久久久久中文一区二区 | 欧美久久久久久久久久| 国产在线麻豆精品观看| 亚洲免费在线观看视频| 日韩精品一区二区三区视频播放 | 国产日产欧美一区二区三区 | 国产精品中文欧美| 樱桃国产成人精品视频| www国产成人| 91女神在线视频| 久久精品国产澳门| 亚洲男人的天堂网| 欧美日韩一级大片网址| 久久国产剧场电影| 国产精品电影一区二区| 欧美久久久久久蜜桃| 麻豆精品国产91久久久久久| 欧美韩国日本一区| 欧美日韩一区二区三区不卡| 东方aⅴ免费观看久久av| 欧美刺激午夜性久久久久久久| 精品在线免费视频| 中文字幕在线免费不卡| 高清av一区二区| 日韩电影一区二区三区四区| 亚洲伦理在线精品| 欧美美女视频在线观看| 粉嫩嫩av羞羞动漫久久久| 天天操天天干天天综合网| 中文字幕综合网| 久久久亚洲综合| 717成人午夜免费福利电影| 99国产精品久久久久久久久久| 国产精品初高中害羞小美女文| 91视频免费播放| 国产一区三区三区| 在线综合亚洲欧美在线视频| 成人h精品动漫一区二区三区| 国产精品短视频| 久久久一区二区三区捆绑**| 6080午夜不卡| 成人精品国产免费网站| 国产一区二区三区久久久| 免费久久精品视频| 久久嫩草精品久久久久| 日韩欧美精品在线视频| 欧美色图12p| 色94色欧美sute亚洲线路一ni| 亚洲视频精选在线| 国产精品午夜电影| 在线成人高清不卡| 欧美做爰猛烈大尺度电影无法无天| 日本一道高清亚洲日美韩| 亚洲综合色丁香婷婷六月图片| 欧美tickling网站挠脚心| 欧美美女激情18p| 欧美日韩午夜在线| 欧美羞羞免费网站| 色噜噜狠狠成人网p站| 99久久国产综合色|国产精品| 五月婷婷色综合| 亚洲一区二区在线视频| 国产精品国产三级国产普通话蜜臀| 在线观看国产日韩| 色综合久久综合网欧美综合网| 欧美a级理论片| 亚洲一区二区在线播放相泽| 亚洲精品水蜜桃| 亚洲裸体在线观看| 亚洲狠狠丁香婷婷综合久久久| 欧美哺乳videos| 91精品国产综合久久久蜜臀图片| 国产精品自在欧美一区| 美国十次综合导航| 免费国产亚洲视频| 免费成人在线观看视频| 天天操天天干天天综合网| 亚洲国产精品嫩草影院| 亚洲成人免费看| 国产精品黄色在线观看| wwwwww.欧美系列| 久久精品夜色噜噜亚洲aⅴ| 久久久久久久久97黄色工厂| 中文字幕欧美日本乱码一线二线| 日韩一二三区不卡| 精品欧美乱码久久久久久1区2区| 色999日韩国产欧美一区二区| 粉嫩在线一区二区三区视频| av在线播放成人| 色视频欧美一区二区三区| 91黄色在线观看| 欧美日韩国产精品自在自线| 91女人视频在线观看| 欧美亚一区二区| 99久久777色| 欧美日韩一区小说| 欧美一区二区黄| 欧美日韩午夜影院| 日韩一区二区三免费高清| 久久色视频免费观看| 国产精品国产三级国产专播品爱网 | 国产精选一区二区三区| 久久99精品国产.久久久久久| 五月婷婷另类国产| 亚洲电影中文字幕在线观看| 日韩理论片在线| 亚洲成人av免费| 久久精品国产一区二区三| 风间由美一区二区av101| 91国在线观看| 精品日韩一区二区| 国产精品女同互慰在线看| 夜夜嗨av一区二区三区网页| 免费人成精品欧美精品| 日韩黄色小视频| 国产乱码精品一区二区三区av | 全国精品久久少妇| 日韩和欧美一区二区| 国产在线视频一区二区| 色先锋资源久久综合| 91精品国产一区二区三区蜜臀| 欧美亚洲动漫制服丝袜| 精品国产网站在线观看| 中文字幕一区二区三区精华液 | 一区二区激情小说| 日本亚洲最大的色成网站www| 日韩精品电影在线| 日本欧美一区二区在线观看| 日韩一区欧美二区| 国产毛片精品一区| 国产一区二区三区免费看| 91免费版在线看| 日韩欧美激情四射| 亚洲精品乱码久久久久久久久| 亚洲一区二区中文在线| 韩国成人福利片在线播放| 日本电影欧美片| 久久日韩粉嫩一区二区三区| 欧美国产一区视频在线观看| 亚洲午夜一区二区| 国产成人午夜精品影院观看视频| 成人黄页毛片网站| 777午夜精品免费视频| 日韩精品专区在线影院观看| 亚洲人成伊人成综合网小说| 亚洲综合免费观看高清完整版在线 | 岛国av在线一区| 91精品国产综合久久久久| 欧美成人午夜电影| 亚洲激情自拍偷拍| 国产精品一区二区无线| 欧美精品日韩一本| 亚洲欧美在线观看| 国产黄人亚洲片| 99久久精品国产网站| 久久久一区二区| 亚洲欧美一区二区三区极速播放|