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

Mr.  Smith is a good teacher.  He teaches English very well.  He  is _1__ to  his  students ,  so  they  like  him  a  lot . There  are (有) fifty  students  in __2__class.  Mr.  Smith   always _ 3___ English   in class.  He   and   his students are _ 4__ friends, too.
18   Now some of the students __5__on the playground.  Bill and Mike __6 _. Tom and John are jumping.  Mary and Lucy are__7__ a kite. Are Lily and Maria flying a kite, __8__?  No, they are playing_ 9 __.  What’s Mr. Smith doing?  Look!  He is also playing_ 10____them.  How happy they are!

【小題1】

A．friendly B．interesting C．beautiful D．happy

【小題2】

A．their B．his C．her D．its

【小題3】

A．talk B．say C．speaks D．speak

【小題4】

A．nice B．fine C．new D．good

【小題5】

A．a(chǎn)re playing B．play C．plays D．is playing

【小題6】A. are running    B. run     C. running    D, not run

【小題7】

A．playing B．flying C．doing D．sitting

【小題8】

A．a(chǎn)lso B．or C．too D．a(chǎn)nd

【小題9】

A．the football B．a(chǎn) football C．the game D．games

【小題10】

A．a(chǎn)nd B．with C．for D．to

某同學用A、B、C三個燒瓶分別按圖5－10所示的實驗裝置進行實驗，每隔一段時間測量導管中水面上升的高度（設(shè)環(huán)境溫度和壓強保持不變），結(jié)果如下表

（表中所列數(shù)據(jù)為導管中水面上升的高度/cm）：

時間/天	0	0.5	1.0	1.5	2.0	2.5	3.0
A瓶（干燥的鐵絲）	0	0	0	0	0	0	0
B瓶（沾了食鹽水的鐵絲）	0	0.4	1.2	3.4	5.6	7.6	9.8
C瓶（沾了清水的鐵絲）	0	0	0	0.3	0.8	2.0	3.5
D瓶（完全浸沒在食鹽水中的鐵絲）	0	0	0	0	0	0	0

（1）B瓶導管中水面為什么會上升？                                         。

（2）通過這個實驗你認為鐵在什么條件下最易生銹？                            。

（3）怎樣才能防止鐵生銹（至少寫出兩點具體措施）？                         。

 

完形填空（每題1分，共10分）
I have a problem. Yesterday afternoon I ___1___ with my best friend, Kim. And he was very angry. I thought about it for a long time last ___2___. Now I know I was ___3___ at that time. But I don’t know ___4___ I should do. My mother thinks I ___5___ go to see Kim and tell him I was wrong. My father thinks I should ___6___ Kim and say ___7___ to him. And my brother ___8___ I should call Teen talk, the radio advice program. My sister tells ___9___ I should call up my teacher for ___10___.
Can you tell me what I should do?
1. A. argued                 B. smiled                C. shouted              D. talked
2. A. morning                B. noon                 C. afternoon             D. night
3. A. right                   B. wrong                C. kind                D. good
4. A. how                   B. why                  C. what                 D. where
5. A. will                   B. should                 C. must                D. need
6. A. call                    B. to call                C. calling               D. called
7. A. hello                 B. morning              C. sorry                D. afternoon
8. A. wants                  B. says                  C. hopes               D. speaks
9. A. I                      B. my                   C. him                 D. me
10. A. advice                  B. money                C. homework           D. study