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 > 高中英語 > 題目詳情

The dream of flying like Buzz Lightyear never dies. For years, space-age inventors have tested one wearable jet pack after another. And time after time, the designs have been grounded by dangerous fuels, excessive weight, or very loud noise levels. Now a Canadian inventor has sidestepped those weaknesses with an aquatic jet pack. Designed for travel over lakes or oceans, it’s driven by pressurized water, not burning rocket fuel.

When Raymond Li first told the idea for the aquatic jet pack to his friends, they said he must be nuts. How could a jet pack carry that much water? Its thrust-to-weight rate would be so low and it would never become airborne. Thrust-to-weight rate is a measure of the forward force produced compared with the weight of the vehicle. A vehicle with a low thrust-to-weight rate is relatively heavy for the amount of force it generates.
Li's genius idea was to place the jet pack’s engine and its water pump in a separate boat. The pump would draw water from the lake the boat was floating on. It would then force the water under pressure through a hose connected to the jet pack. The hose would be long enough to let the pack go up as high as 8.5 meters (28 feet) in the air.
Today, Li's invention, the Jetlev-Flyer, is ready to go into production. The pack itself, complete with jet nozzles (管嘴) and handlebars, weighs just 14 kilograms. The boat is a floating pod. To take off, the operator hits a trigger on a handlebar, which starts the pump, and then turns the throttle. Two streams of high-velocity water shoot through the hose and out the nozzles, lifting the operator into the air. The operator hovers there or pushes down on the handlebars, zooming forward at speeds of up to 64 kilometers per hour, pulling the pod behind.
【小題1】All the following factors contribute to the failure of inventing a wearable jet pack EXCEPT ______.

A.excessive waterB.unbearable noiseC.unsafe fuelsD.too much weight
【小題2】The underlined word “sidestepped” in Para. 1 most probably means ________.
A.improvedB.reducedC.avoidedD.solved
【小題3】 Raymond Li’s friends found his idea for the aquatic jet pack was ________.
A.excitingB.crazyC.realisticD.creative
【小題4】Which of the following is TRUE according to the passage?
A.His friends encouraged him to do the invention.
B.He put the engine and its water pump in the same boat.
C.The success of his invention lies in his bravery.
D.His invention finally succeeded and will go into production.
【小題5】Which is the right order to make the Jetlev-Flyer take off?
a. The throttle is turned.                  b. The operator is lifted into the air.
c. A trigger is hit.                       d. Two streams of water shoot out.
The pump is started.
A.c, e, a, d, bB.c, e, a, b, dC.e, c, d, b, aD.e, a, c, d, b


【小題1】A
【小題2】C
【小題3】B
【小題4】D
【小題5】A

解析

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:閱讀理解

第三部分  閱讀理解(共兩節,滿分40分)

(共15小題:每小題2分,滿分30分)

      閱讀下列短文,從每題所給的四個選項(A、B、C和D)中,選出最佳選項,并在答題卡上將該項涂黑。

   Tt was a village in India. The people were poor . However, they were not unhappy. After all , their forefathers had lived in the same way for centuries.

   Then one day, some visitors from the city arrived . They told the villagers there were some people elsewhere who liked to eat frog’s legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.

This seemed like money for nothing . There were millions of frogs in the fields around, and they were  no use to the villagers. All they had to do was catch them . Agreement was reached, and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time ,the people were able to dream of a better future. But the dream didn’t last long.

The change was hardly noticed at first ,but it seemed as if the crops were not doing so well. More worrying was that the children fell ill more often ,and ,there seemed to be more insects around lately.

The villagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money earned to buy pesticides (殺蟲劑)and medicines. Soon there was no money left .

Then the people realized what was happening.Tt was the frog .They hadn’t been useless. They had been doing an important job-eating insects. Now with so many frogs killed , the insects were increasing more rapidly. They were damaging the crops and spreading diseases.

Now, the people are still poor .But in the evenings they sit in the village square and listen to sounds of insects and frogs. These sounds of the night now have a much deeper meaning.

1. From Paragragh 1 we learn that the villagers__________.

   A.worked very hard for centuries

   B.dreamed of having a better life

   C.were poor but somewhat content

   D.lived a different life from their forefathers

2.Why did the villagers agree to sell frogs?

   A.The frogs were easy money.

   B.They needed money to buy visitors.

   C.They wanted to please the visitors.

   D.The frogs made too much noise.

3.What might be the cause of the children’s sickness?

   A.The crops didn’t do well.

   B.There were too many insects.

   C.The visitors brought in diseases.

   D.The pesticides were overused.

4.What can we infer from the last sentence of the text?

   A.Happiness comes from peaceful life in the country.

  B.Health is more important than money.

C.The harmony between man and nature is important.

D.Good old days will never be forgotten.

查看答案和解析>>

科目:高中英語 來源:2013屆河南省鄭州市第四中學高三第十三次調考英語試卷(帶解析) 題型:單選題

With the world economy growing weaker, for many young people, the dream of landing a good job is becoming harder and harder ________.

A. realizedB.realizingC.to realizeD.to be realized

查看答案和解析>>

科目:高中英語 來源:2012-2013學年山西省太原五中高一3月月考英語試卷(帶解析) 題型:閱讀理解

根據短文內容,從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。
For centuries, people have wondered about the strange places that they seem to visit in their sleep. ___【小題1】___ However, they have been valued as necessary to a person’s health and happiness.
Historically people thought dreams contained messages from God. It was only in the twentieth century that people started to study dreams scientifically believing that they tell about a person’s character. ___【小題2】__ He believed that dreams allow a person to express fantasies or fears, which would be socially unacceptable in real life.
The second theory to become popular was Carl Jung’s compensation theory. Jung, a former student of Freud, said that the purpose of a dream is not to hide something, but rather to communicate it to the dreamer. ___【小題3】__ Thus, people who think too highly of themselves may dream about falling; those who think too little of themselves dream of being heroes.
Using more recent research, William Domhoff from the University of California found that dreaming is a mental skill that needs time to develop in humans. ___【小題4】___  Until they reach age five, they can not express very well what their dreams are about. Once people become adults, there is little or no change in their dreams. The dreams of men and women differ.
The meaning of dreams continues to be difficult to understand. ___【小題5】___ If you dream that a loved one is going to die, do not panic. The dream may have meaning, but it does not mean that your loved one is going to die.

A.Dreams make up for what is lacking in waking life.
B.However, people should not take their dreams as reality.
C.They have been considered as meaningless nighttime journeys.
D.It gives scientists chances to better understand human mind.
E.Children do not dream as much as adults.
F.They think their mind is trying to tell them something.
G.First, there was Sigmund Freud’s theory.

查看答案和解析>>

科目:高中英語 來源:2013屆度江蘇省揚州市高二上學期期中考試英語題 題型:閱讀理解

The right to pursue happiness is issued to us all with our birth, but no one seems quite sure what it is.

A holy man in India may think that happiness is in himself. It is in needing nothing from outside himself. If wanting nothing, he lacks nothing. We westerners, however, are taught that the more we have from outside ourselves, the happier we will be, and then we are made to want. We are even told it is our duty to want. Advertising, one of our major industries, exists not to satisfy these desires but to create them---and to create them faster than any man’s money in his pocket can satisfy them. Here, obviously someone is trying to buy the dream of happiness and spending millions upon millions every year in the attempt. Clearly the happiness-market is not running out of customers.

I doubt the holy man’s idea of happiness, and I doubt the dreams of the happiness-market, too. Whatever happiness may be, I believe, it is neither in having nothing nor in having more, but in changing --- in changing the world and mankind into pure states.

To change is to make efforts to deal with difficulties. As Yeats, a great Irish poet once put it, happiness we get for a lifetime depends on how high we choose our difficulties.

It is easy to understand. We even demand difficulty for the fun in our games. We demand it because without difficulty there can be no game. And a game is a way of making something hard for the fun of it. The rules of the game are man-made difficulties. When the player ruins the fun, he always does so by refusing to play by the roles. It is easier to win at chess if you are free, at your pleasure, to cast away all the rules, but the fun is in winning within the rules.

The same is true to happiness. The buyers and sellers at the happiness-market seem to have lost their sense of the pleasure of difficulty. Heaven knows what they are  playing, but it seems a dull game. And the Indian holy man seems dull to us, I suppose, because he seems to be refusing to play anything at all.

The western weakness may be in the dreams that happiness can be bought while eastern weakness may be in the idea that there is such a thing as perfect happiness in man himself. Both of them forget a basic fact: no difficulty, no happiness.

1.Who shares the same idea of happiness with the author?

A. The Indian holy man                B. The great Irish poet Yeats

C. Advertisers                      D. The buyers and sellers at the happiness-market

2.What does “happiness-market” mean in the second paragraph?

A. It means a place in which people can buy things happily

B. It means a market which lacks happy customers

C. It means a pure state for the world and mankind

D. It means a market where people try to buy happiness with money.

3.According to the passage, which of the following is Right?

A. The Indian holy man is much happier than westerner.

B. The westerners understand happiness better than the Indian holy man.

C. There is no fun without playing by the rules

D. Both the eastern weakness and western weakness are the same.

 

查看答案和解析>>

科目:高中英語 來源:2012屆廣東省廣州市高二下學期期末教學質量檢測(七區聯考)英語題 題型:閱讀理解

 

One of the most famous buildings in the United States is Carnegie Hall, the home of classical and popular music concerts in New York. Carnegie Hall is known not just for its beauty and history, but also for its amazing sound. It has been said that the hall itself is an instrument. It takes the music and makes it larger than life.

Carnegie Hall is named after Andrew Carnegie, who paid for its construction. He was a wealthy man who also gave a lot of money to schools and public libraries. Construction on Carnegie Hall began in 1890 and the official opening night was on May 5, 1891.

The hall was owned by the Carnegie family until 1924 when it was sold to Robert E. Simon. The building became very old and in 1960, the new owner made plans to destroy it and build an office block. Isaac Stem led a group of people who fought to save Carnegie Hall and finally, the city of New York bought it for $5 million. It was then fixed up between 1983 and 1995.

In 1986, people realized that Carnegie Hall had never kept proper records of its history. Advertisements and stories in newspapers about how Carnegie Hall needed help to recover its history led people to send in old concert programmes and information from all over the world. Over 12,000 concert programmes were received and with these it was possible to make a proper record of Carnegie Hall’s concert history.

Carnegie Hall is actually made up of several different halls, but the Main Hall, now called the Isaac Stern Hall, is the most famous. Most of the greatest performers of classical music since the time the hall was built have performed in the Main Hall, and its reception areas are decorated with signed photographs of these musicians. The hall itself can hold an audience of 2,804 in five levels of seating. Visitors to the top level have to climb up 105 steps to get there!

Because the best and most famous musicians of all time have played at Carnegie Hall, it is the dream of most musicians who want to be great to play there. This has led to a very old joke which is now part of Carnegie Hall’s history. Question: “How do I get to Carnegie Hall?” Answer: “Practise, practise, practise.”

1.What do music lovers expect in Carnegie Hall?

   A. Musical concerts presented by first class performers.

   B. Exhibits and photographs of historical events.

   C. Musicians practicing for opportunities to play.

   D. People dancing merrily at parties.

2.What is the correct order of the following events?

  a. Robert E. Simon bought it in 1924.

b. Carnegie Hall got its name.

  c. Carnegie Hall recovered its history.

  d. New York City paid $5,000,000 for it. 

  e. Construction on Carnegie Hall began in 1890.

A. a; c; b; d; e;       B. e; d; c; a; b      C. e; b; a; d; c      D. a; e; c; d; b

3.How long did it take Carnegie Hall to be fixed up?

   A. 9 years.   B. 10 years.   C. 11 years.   D. 12 years.

4. How did Carnegie Hall recover its concert history?

   A. Through newspaper reports.

   B. Through old concert programmes.

   C. Through old photographs.

   D. Through old jokes.

5.Why do you think the Main Hall is now called the Isaac Stern Hall?

   A. Because Isaac Stern is a famous musician.

   B. Because Isaac Stern built the Main Hall.

   C. Because Isaac Stern saved Carnegie Hall.

   D. Because Isaac Stern made up the Carnegie Hall joke.

 

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
日本丰满少妇一区二区三区| 精品电影一区二区| 天天操天天综合网| 欧美群妇大交群的观看方式| 日韩在线播放一区二区| 在线不卡一区二区| 久久成人精品无人区| 久久综合av免费| 国产.欧美.日韩| 日韩毛片精品高清免费| 日本高清不卡视频| 日韩精品成人一区二区三区| 欧美zozozo| 成人美女视频在线看| 亚洲同性gay激情无套| 欧洲精品中文字幕| 免费高清成人在线| 久久久精品2019中文字幕之3| 成人黄色av网站在线| 亚洲在线一区二区三区| 欧美精品三级日韩久久| 韩国女主播成人在线观看| 国产精品午夜在线观看| 色欧美乱欧美15图片| 免费一级片91| 欧美国产97人人爽人人喊| 91女厕偷拍女厕偷拍高清| 日韩精品一二三| 国产婷婷色一区二区三区| 91色.com| 麻豆91在线观看| 国产精品另类一区| 欧美日韩你懂得| 国产一区二区在线观看视频| 亚洲欧美国产高清| 日韩一区二区三区免费看| 大胆欧美人体老妇| 午夜不卡在线视频| 国产偷v国产偷v亚洲高清| 欧洲视频一区二区| 国产精品一区二区果冻传媒| 一区二区三区av电影| 欧美精品一区二区久久婷婷 | 精品一区二区三区在线观看国产| 中文字幕国产一区二区| 欧美理论电影在线| 粉嫩在线一区二区三区视频| 香蕉久久一区二区不卡无毒影院| 国产亚洲欧美日韩在线一区| 欧美午夜精品一区二区蜜桃 | 在线视频国产一区| 国产精品自在欧美一区| 亚洲午夜精品在线| 国产欧美日韩在线| 91麻豆精品国产91久久久资源速度| 成人污污视频在线观看| 欧美aa在线视频| 亚洲欧美日韩国产综合| 久久久久久夜精品精品免费| 欧美日韩在线电影| av中文字幕在线不卡| 麻豆精品新av中文字幕| 夜夜精品浪潮av一区二区三区| 久久久久国产免费免费| 91精品国产aⅴ一区二区| 99久久精品国产导航| 国产在线不卡一卡二卡三卡四卡| 亚洲va韩国va欧美va| 国产精品久久久久久久久久免费看| 日韩欧美黄色影院| 欧美日韩在线播| 99久久精品国产一区二区三区 | 亚洲国产精品成人综合 | 欧美一区二区三区的| 日本久久一区二区| 不卡的av网站| 国内成人免费视频| 日本一区中文字幕| 亚洲国产精品久久人人爱| 国产精品久久久久久久久免费丝袜 | 国产色婷婷亚洲99精品小说| 欧美一区二区福利在线| 欧美中文字幕一二三区视频| 91视视频在线直接观看在线看网页在线看 | 欧美刺激午夜性久久久久久久| 欧美视频一区二区三区四区| 99久久免费精品| 国产99一区视频免费| 国内成人免费视频| 久久精品国产亚洲一区二区三区| 午夜影视日本亚洲欧洲精品| 亚洲综合一区二区三区| 最新中文字幕一区二区三区| 中文字幕久久午夜不卡| 国产无一区二区| 久久精品人人做人人综合| 欧美成人性福生活免费看| 91精品国产一区二区人妖| 欧美日韩色综合| 欧美艳星brazzers| 在线亚洲一区二区| 一本久久精品一区二区| 99国内精品久久| 99精品桃花视频在线观看| 成人18视频在线播放| 成人性视频网站| 丁香婷婷综合色啪| 国产白丝网站精品污在线入口| 国产一本一道久久香蕉| 国产在线精品免费| 国产乱一区二区| 国产精品99久久久久| 国产精品99精品久久免费| 国产精品综合久久| 国产91露脸合集magnet | 国产成人日日夜夜| 国产 日韩 欧美大片| 成人国产免费视频| 97精品久久久久中文字幕| 99视频精品全部免费在线| 91在线精品一区二区| 在线观看亚洲一区| 欧美日韩在线综合| 欧美一区二区三区视频在线观看| 91精品国产欧美一区二区18| 欧美成人三级在线| 久久午夜电影网| 欧美国产精品劲爆| 亚洲人成人一区二区在线观看| 伊人一区二区三区| 午夜电影一区二区三区| 奇米精品一区二区三区四区| 国模一区二区三区白浆| 成人深夜视频在线观看| 成年人国产精品| 日本电影亚洲天堂一区| 欧美高清视频一二三区| 日韩美女主播在线视频一区二区三区 | 久久久久久影视| 最新热久久免费视频| 一区二区不卡在线播放| 日本视频一区二区三区| 国内精品写真在线观看| 成人av在线电影| 欧美偷拍一区二区| 日韩三级视频中文字幕| 久久精品在线观看| 亚洲欧美日韩国产手机在线| 午夜电影一区二区三区| 国产一区二区伦理片| 99久久er热在这里只有精品66| 欧美三日本三级三级在线播放| 欧美成人女星排名| 国产精品盗摄一区二区三区| 亚洲第一主播视频| 韩国欧美国产一区| 91麻豆国产精品久久| 欧美一区二区啪啪| 中文字幕精品三区| 午夜不卡av在线| 粉嫩13p一区二区三区| 欧美三日本三级三级在线播放| 精品国产亚洲在线| 亚洲柠檬福利资源导航| 免费成人性网站| 99久久综合99久久综合网站| 欧美欧美午夜aⅴ在线观看| 久久久久久久性| 亚洲一区二区黄色| 国产美女精品一区二区三区| 在线观看一区二区视频| 26uuu色噜噜精品一区| 亚洲精品v日韩精品| 激情文学综合丁香| 日本乱人伦aⅴ精品| 美美哒免费高清在线观看视频一区二区| 国产精品99久久久久久似苏梦涵| 欧美日韩中文字幕一区| 国产欧美精品一区二区色综合| 亚洲成a人v欧美综合天堂| 福利一区福利二区| 欧美一级欧美三级在线观看| 中文字幕一区在线观看视频| 男男成人高潮片免费网站| 97久久久精品综合88久久| 精品毛片乱码1区2区3区| 一区二区三区日韩精品视频| 国产一区二区不卡老阿姨| 欧美日韩久久一区二区| 欧美国产综合一区二区| 蜜臀99久久精品久久久久久软件| 色综合天天综合在线视频| 精品福利一区二区三区| 亚洲国产精品一区二区久久 | 538在线一区二区精品国产| 亚洲同性同志一二三专区| 国模无码大尺度一区二区三区| 欧美美女直播网站| 亚洲女厕所小便bbb| 成人在线综合网站|