Question

【題目】 You get into an elevator(電梯). There is a button(按鈕) inside. You press the button. Then the elevator takes you to outer space. Does this sound like something from a scifi movie? In fact, it might become real in the future.

Scientists hope to build the space elevator by 2050, Science Daily reported. The elevator might look like an egg. It can carry 30 people. The trip is about 36，000 km and it may take eight days to get into space. And the elevator has a cable(纜繩). The cable is very important for the elevator. It should be very strong so that it can stand up to the high pressure(高壓). The cable connects the elevator to the International Space Station and the elevator goes up and down along the cable.

People can only go into space by spacecraft or rocket right now. But they are expensive. A space elevator would be much cheaper. It can do more than just take people into space. The elevator can also send heavy things or scientific materials(材料) into space. However, one difficult part of building a space elevator now is finding the right material for the cable. And scientists are still working hard on it.

【1】In Paragraph 2, the underlined word “It” may refer to “the ________”.

A.cableB.rocket

C.spacecraftD.space elevator

【2】From the passage, we can know that the space elevator ________.

A.looks like a big footballB.comes from a scifi movie

C.needs 30 scientists to buildD.can take people into space

【3】The scientists want to build a space elevator probably because it can ________.

A.carry the spacecraft or the rocket

B.send more materials into space

C.help find more ways to other planets

D.make space travel less expensive

【4】According to the passage, building a space elevator is ________.

A.easy and funB.difficult but possible

C.hard and boringD.useful but impossible

Answer 1

【答案】

【1】A

【2】D

【3】D

【4】B

【解析】

短文講了未來的太空電梯，詳細(xì)介紹了電梯的結(jié)構(gòu)，功能，以及和火箭的區(qū)別。

【1】詞意猜測題。根據(jù)And the elevator has a cable(纜繩). The cable is very important for the elevator. It should be very strong so that it can stand up to the high pressure(高壓).可知，電纜對電梯很重要。電纜應(yīng)該非常堅(jiān)固，這樣才能承受高壓。It指代的是上文的電纜，故選A。

【2】細(xì)節(jié)理解題。根據(jù)People can only go into space by spacecraft or rocket right now. But they are expensive. A space elevator would be much cheaper. It can do more than just take people into space.可知，現(xiàn)在人們只能乘坐宇宙飛船或火箭進(jìn)入太空。但是它們很貴。太空電梯會便宜很多。它能做的不僅僅是把人送入太空。故天空電梯能把人送入太空，故選D。

【3】細(xì)節(jié)理解題。根據(jù)People can only go into space by spacecraft or rocket right now. But they are expensive. A space elevator would be much cheaper.可知，科學(xué)家們想要建造一個太空電梯可能是因?yàn)橥ㄟ^太空電梯進(jìn)入太空要便宜的多。故選D。

【4】推理判斷題。根據(jù)However, one difficult part of building a space elevator now is finding the right material for the cable. And scientists are still working hard on it.可知，建造太空電梯是困難的，但是找到合適的電纜材料，建造太空電梯就是有可能的。故選B。