Scientists think that there has been life for 31 of years. However we haven’t found life on other planets 32 . The earth is a planet and it 33 around the sun. Seven other planets also go 34 the sun. 题目和参考答案——青夏教育精英家教网—

题目内容

Scientists think that there has been life for__31_ of years. However we haven’t found life on other planets _32_ . The earth is a planet and it _33__ around the sun. Seven other planets also go _34_ the sun. The sun and its planets are __35 the solar system. The solar system is a small part of our galaxy.

Scientists __36_ lots of spacecraft to look at other planets in the solar system, and some spacecraft have gone __37_ the solar system. However, no one __38_ any life in space yet.

But why has no one from other planets sent us a message ? Have they tried to send _39_ to us ? _40_so many stars in the universe, are we alone, or is there life out there in space ? We don’t know.

A．thousands

B．millions

C．hundreds

D．billion

A．already

B．never

C．yet

D．just

A．go

B．turn

C．travel

D．goes

A．to

B．back

C．around

D．into

A．called

B．call

C．calling

D．calls

A．send

B．sent

C．have sent

D．will send

A．out

B．beyond

C．into

D．up

A．discovered

B．discovers

C．has discovered

D．have discovered

A．message

B．informations

C．information

D．news

10.

A．With

B．Have

C．Use

D．Because

【答案】

1.B

2.C

3.D

4.C

5.A

6.C

7.B

8.C

9.C

10.A

【解析】

1.根据后文内容可知答案为Where’s your mother?，故选答案为B

2.yet 表示否定句中的也，故选答案为C

3.因为it 作为主语，谓语动词用动词，故选答案为D

4.根据前文的内容可知答案为go around，表示围着···转，故选答案为C

5.根据文章内容可知答案为被人叫做，故选答案为A

6.根据上下文的内容可知答案为C

7.根据上下文的内容，可知答案为B

8.no one作为主语时，相当于适当形式，故选答案为C

9.information为不可数名词，故选答案为C

10.with···表示在···情况下，故选答案为A

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