题目内容

Alexander Bell ________ the telephone in 1876.

A. invented B. discovered C. found out D. looked for

A 【解析】句意：Alexander Bell在1876年发明了电话。A. invented 发明； B. discovered 发现； C. found out 弄清楚； D. looked for寻找；根据历史知识可知是发明了电话；故选A
练习册系列答案
相关题目

They are your shoes. Please ___________.

A. put it away B. put away them

C. put shoes away D. put them away

D 【解析】句意：它们是你的鞋子。请把它们收起来。考查动词短语辨析。“动词+副词” 结构的短语动词，如果宾语是代词的话，代词需放在动词和副词之间。又因为第一句提到的shoes是可数名词复数，需用them代替，故选D。

Many people know that rubbish is a big problem on planet Earth. What many people don't know is that junk(垃圾)has become a problem in outer space too.

According to BBC News, there are more than 22, 000 pieces of space junk floating around the earth. And these are just the things that we can see from the surface of the earth by telescopes (望远镜). There are also millions of smaller pieces of junk that we can't see.

Objects, like bits of old space rockets or satellites, move around the planet at very high speeds fast that even a very small piece can break important satellites or become dangerous to astronauts. If the tiniest piece of junk crashed into a spaceship, it could damage the vehicle.

To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a U.S. satellite hit an old Russian rocket in 2009, it broke into more than 2,000 pieces, increasing the amount of space junk.

To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth's atmosphere after that time. In the upper parts of the atmosphere, it will burn up.

Many scientists also suggesting different ways to clean up space junk. In England scientists are testing a metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth's atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.

The problem is becoming more challenging because we're sending more objects into space to help people use their mobile phones and computers,” says Marco Castronuovo, an Italian space

Researcher.

“The time to act is now. The longer we leave the problem, the bigger it will become,” he says.

1.What does the underlined word “these” in Paragraph 2 refer to?

A. Telescopes.

B. Satellites.

C. Pieces of space junk.

D. BBC news reports.

2.Why is space junk considered a problem?

A. It buns up after it re-enters the atmosphere

B. It often stops the view of telescopes on Earth

C. It could force new space tools to travel at slower speeds

D. It may crash into other space tools causing damage or death

3.Countries want future space tools to be able to fall back into the earth's atmosphere so that .

A. the tools can be reused later

B. the tools don't become space junk

C. the earth’s atmosphere can stay clean

D. the effects of space flight can be studied

4.How do the Germans plan to deal with space junk?

A. Catch it with nets.

B. Use robots to collect it.

C. Burn it in the earth's atmosphere.

D. Send it further away from the earth.

5.In which section of the newspaper would you probably read this article?

A. Environment.

B. Local News.

C. Education.

D. Fashion.

1.C 2.D 3.B 4.B 5.A 【解析】试题本文主要讲述了垃圾不仅是地球上，而且也是太空里的一大问题，对人类生存环境造成极大的影响，许多科学家也提出了清理太空垃圾的不同方法。 1.根据前文According to BBC News, there are more than 22, 000 pieces of space junk floating aro...

Our teacher Ms.Yang is so friendly to us that we all ________ her as our elder sister.

A. regard B. owned C. left D. collected

A 【解析】句意：我们的老师杨老师对我们是如此的友好，以至于我们都把她看作我们的大姐姐。 A. regard 看作； B. owned拥有； C. left 离开； D. collected收集；根据regard---as--- 把---看作---；故选A

Mary's mother always encourages her ________ new things.

A. to try B. try C. trying D. tries

A 【解析】句意：玛丽的妈妈经常鼓励她尝试新东西。根据encourage sb to do鼓励某人做某事；故选A

（题文）Thomas Edison invented _______ light bulb (灯泡)．He was _______ unusual man.

A. a; a B. an; the C. the; an D. a; /

C 【解析】 试题句意：托马斯·爱迪生发明了电灯。他是一个不同寻常的人。第一个空特指电灯用定冠词the,第二个空表示一个，用在unusual前第一个字母发元音，故用an。根据句意，故选C.

________！The train is coming!

A. Wake up B. Get up C. Turn up D. Hurry up

D 【解析】句意：快点，火车来了。A. Wake up 醒来； B. Get up起床； C. Turn up 开大； D. Hurry up快点；根据The train is coming!；故选D

（题文）After lunch Mark ________ me to a game of tennis.

A. finished B. beat C. challenged D. won

C 【解析】句意：午饭后马克向我挑战打网球。A. finished 完成； B. beat 打败； C. challenged 挑战； D. won赢，获胜；根据challenge sb to sth向某人挑战某事；故选C

（2016江苏无锡中考）—So you gave her your mobile phone?

—_________. She said she’d return it to me after she had hers fixed.

A. My pleasure B. Not exactly C. With pleasure D. No problem

B 【解析】试题句意：-- 这么说，你把你的手机给她了？--不全是， 她说她自己的修好了就还我。A. My pleasure我的荣幸；B. Not exactly不完全正确；C. With pleasure 非常乐意；D. No problem没问题。结合句意，故选B。

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网