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阅读理解
阅读下列短文，从每题所给的四个选项中选出最佳选项。
Every animals is a living radiator (散热器)--heat formed in its cells and given off through its skin. Warm blooded animals keep a normal temperature by continuously replacing lost surface heat: smaller animals, which have more skin for every ounce of body weight, must produce heat faster than bigger ones. Because smaller animals burn fuels faster, scientists say they live faster. The speed at which an animal lives is determined by measuring the rate at which it uses oxygen. A chicken, for example, uses one-half cubic centimeters of oxygen every hour for each gram it weighs. The tiny shrew-mouse used four cubic centimeters of oxygen every hour for each gram it weighs. Because it uses oxygen eight times as fast, it is said that the shrew-mouse is living eight times as fast as the chicken. The smallest of the warm-blooded animals, the humming-bird, lives a hundred times as fast as an elephant. There is a limit to how small a warm-blooded animal can be. A mammal or bird that weighs only two and a half grams would starve to death. It would burn up its food too rapidly and would not he able to eat fast enough to supply itself more fuel.
1．The passage says that every animal is a living radiator because it _____.
[ ]
A．produces heat in its body cells
B．burns fuel to produce heat
C．sends out heat through its skin
D．takes in oxygen for burning fuel
2．Small animals are said to live faster than big ones because they _____.
[ ]
A．have more skin for their weight
B．replace lost heat faster
C．burn fuel faster than big ones
D．keep a higher body temperature
3．The amount of oxygen an animal uses depends on _____.
[ ]
A．the heat the body produces
B．the food it eats
C．its size and shape
D．the length of time it lives
4．According to the passage, which of the following inferences is possibly right?
[ ]
A．There is no limit as to how large a warm-blooded animal can be.
B．The humming-bird lives faster than any other warm-blooded animals.
C．Small animals have less skin for their body weight than large ones.
D．The humming-bird is the smallest of the warm-blooded animals.
查看习题详情和答案>>| Flying mattress
Inventor: Janjaap Ruijssenaars Price: US $ 1.5million. | ||
| Hydrogen car It could be years before you can buy a real hydrogen-fuel-car. Shanghai-based Horizon Fuel Cell Technologies got tired of waiting and designed a 15-centimetre-long toy car. It uses no batteries nor petrol , and runs on hydrogen extracted (提取) from tap water . With a full tank of water the car can travel more than 100 metres. Since it uses only a little amount of flammable（易燃的）hydrogen , there’s no risk of a hydrogen bomb explosion in the living room . Inventor :Horizon Fuel Cell ; Price ; US$ 115 | ||
| A Plate of coffee “Don’t spill (洒) it !” many mums shout to teens drinking coffee , because coffee stains are difficult to wash away . Spanish inventor Ferran Adria’s latest invention may save teenagers from nagging. Solid coffee is made by combining coffee with sugar using a secret recipe. The mixture is like cream and you eat it with a spoon. The solid coffee has been available in the US since September and comes in several different flavors. Inventor : Ferran Adria Available at Lavazza in Chicago for US $ 2.49 | ||
| Meow, no achoo! (打喷嚏) Love cats but your nose doesn’t? Allerca, a US company is breeding (繁殖) a new type of cat that won’t cause allergic (过敏的) reactions . Most cats produce a protein in their saliva (唾液) that can cause an allergic reaction in humans . But the new cat bred by Allerca don’t have this problem. Allerca tests each cat and offers a one-year money-back guarantee. Demand is high: there’s already a 15-month wait for the sniffle-proof (防止抽鼻涕) cats . Inventor : Allerca ; Price : from 2009 at US $ 3,950 | ||
| Hands –free hug When you’re away from home , phone calls help you keep in touch with the family . If you still miss your parents’ hugs ,now they can send you a hug by cellphone with the help of Hug Shirt . When your mum sends you a hug , your cellpone sends a signal to the Hug Shirt . The shirt then gives you a hug with the same warmth , pressure , duration and even heartbeat of your mum’s hug . The Hug Shirt is made of high-tech material and is washable . Inventor : CuteCircuit , US; Price : Not yet for sale |
1．What does the writer want to tell us .
A．let you pick up the coolest inventions
B．tell you how to invent something
C．explain to you some hi-tech inventions
D．introduce some coolest inventions listed by time
2．Which of the inventions would Lucy, who just started college and missed her family very much, want to buy ?
A．Hydrogen car B．Hug Shirt
C．Solid coffee D．Sniffle-proof cats
3．From the text, we can see that .
A．the new type of cat will probably enjoy the best sales
B．real hydrogen-fuel-car will be available soon
C．flying mattress is both expensive and silly
D．many people don’t like cats because they smell
4．The only invention that has already been put on the market is .
A．Flying mattress B．Hug shirt
C．Solid coffee D．Sniffle-proof cats
查看习题详情和答案>>根据句子及所给单词的首字母，按题号写出各单词的正确形式。（每空限写一词）
1.He stated his view that developing car industry in such a rapid speed is not b___________ in the long run.
2.I’m longing for being a____________ to the Miro Exhibition, as I don’t know the way well.
3.It is said that Mozart possessed a remarkable t___________ for music.
4.Small as the hotel is, it provides an a____________ supply of hot water 24 hours a day to meet your need.
5.Defeated, they still feel c_______ with the result of the competition, for they have spared no effort to make preparations.
6.As winter is a________, the weather is getting colder.
7.Wang Pengwei felt frustrated that a lot of r________ customers went to a newly-opened small restaurant.
8.In order to satisfy my daughter’s c________, I have to refer to the Encyclopedia(百科全书).
9.The homeless child w______ on the street is in the hope of finding something to eat.
10.We need to take m_____ at once to prevent the growth of the population in China.
查看习题详情和答案>>
根据句子及所给单词的首字母，按题号写出各单词的正确形式。（每空限写一词）
He stated his view that developing car industry in such a rapid speed is not b___________ in the long run.
I’m longing for being a____________ to the Miro Exhibition, as I don’t know the way well.
It is said that Mozart possessed a remarkable t___________ for music.
Small as the hotel is, it provides an a____________ supply of hot water 24 hours a day to meet your need.
Defeated, they still feel c_______ with the result of the competition, for they have spared no effort to make preparations.
As winter is a________, the weather is getting colder.
Wang Pengwei felt frustrated that a lot of r________ customers went to a newly-opened small restaurant.
In order to satisfy my daughter’s c________, I have to refer to the Encyclopedia(百科全书).
The homeless child w______ on the street is in the hope of finding something to eat.
We need to take m_____ at once to prevent the growth of the population in China.
查看习题详情和答案>>根据句子及所给单词的首字母，按题号写出各单词的正确形式。（每空限写一词）
【小题1】He stated his view that developing car industry in such a rapid speed is not b___________ in the long run.
【小题2】I’m longing for being a____________ to the Miro Exhibition, as I don’t know the way well.
【小题3】It is said that Mozart possessed a remarkable t___________ for music.
【小题4】Small as the hotel is, it provides an a____________ supply of hot water 24 hours a day to meet your need.
【小题5】Defeated, they still feel c_______ with the result of the competition, for they have spared no effort to make preparations.
【小题6】As winter is a________, the weather is getting colder.
【小题7】Wang Pengwei felt frustrated that a lot of r________ customers went to a newly-opened small restaurant.
【小题8】In order to satisfy my daughter’s c________, I have to refer to the Encyclopedia(百科全书).
【小题9】The homeless child w______ on the street is in the hope of finding something to eat.
【小题10】We need to take m_____ at once to prevent the growth of the population in China.