题目列表(包括答案和解析)

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6.Many astronauts have visited the space station.(用already)  

                         

答案:Ⅴ.

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5.The spacecraft has reached the moon.(用just) 

                          

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4.They haven’t been to Mars.(用yet)  

                         

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3.Scientists have found life on other planets.(改为否定句)  

                         

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2.I heard about the news about the space travel.(改为同义句)  

                         

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(根据括号中的要求改写下列句子。) 

1.He is going to Shanghai.(用现在完成时)  

                         

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6.It    ten years since he left the army. 

A.is      B.has      C.will      D.was

答案: 6.A 可用“It is+一段时间+since从句”来表示。

●Sentence structure training 

(句子结构专练)

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5.My parents    Shandong for ten years. 

A.have been in       B.have been to

C.have gone to       D.have been

答案: 5.A

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4.Miss Green isn’t in the office.She     to the library. 

A.has gone   B.went    C.will go    D.has been

答案: 4.A “have/has gone to+地点”表示“某人去了某地(还未回来)”,指主语所指的人不在这儿。“have/has been in+地点”表示“在某地呆了多长时间”,常与表示时间的状语连用。“have/has been to+地点”表示“曾经去过某地(但现在已不在那儿)”。

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3.-   you   your homework yet? 

-Yes.I    it a moment ago. 

A.Did;do;finished        B.Have;done;finished 

C.Have;done;have finished    D.will;do;finish

答案: 3.B

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