Question

1.They heard a message from a spacecraft.(用just改為現(xiàn)在完成時(shí)態(tài)形式)

They        just        a message from a spacecraft.

2.Have you got a letter from Lucy?(改為同義句)

Have you                Lucy?

3.To understand the problem is very difficult.(用it作為形式主語(yǔ))

               very difficult        understand the problem.

4.I came here two days ago.(改為同義句)

I                here         two days.

5.Her mother has been to Hong Kong several times.(就畫線部分提問(wèn))

                        has her mother been to Hong Kong?

 

Answer 1

【答案】

1.have;heard

2.heard from

3.It is;to

4.have been;for

5.How many times

【解析】

1.此題考查現(xiàn)在完成時(shí)的基本用法和構(gòu)成。Have或has+動(dòng)詞的過(guò)去分詞，表示發(fā)生在過(guò)去的動(dòng)作對(duì)現(xiàn)在造成的影響。Just表示剛剛。

2.此題考查固定短語(yǔ)hear from sb="get" a letter from sb表示收到某人的來(lái)信。

3.此題考查固定句型結(jié)構(gòu)it is+形容詞 for sb to do sth表示對(duì)某人來(lái)說(shuō)做某事怎樣，其中it是形式主語(yǔ)，真正的主語(yǔ)是后面的動(dòng)詞不定式。

4.此題考查延續(xù)性動(dòng)詞和非延續(xù)性動(dòng)詞之間的相互轉(zhuǎn)換，前者可以跟段時(shí)間狀語(yǔ)連用，后者不能跟段時(shí)間狀語(yǔ)連用。

5.此題考查     特殊疑問(wèn)句，因劃線部分是表示次數(shù)故用how many times來(lái)提問(wèn)，其中的times是可數(shù)名詞表示次數(shù)。