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24. ---Why are they taking all the equipment away?

---The job ____, they are packing up to leave.

A. done                 B. being done                C. was done    D. having done

【解析】A：本句最重要的標志符號為第二句兩段之間的逗號：前后如為主句和從句之間關系，必有連詞。既然沒有連詞，且后一句為完整句，前半部分勢必為獨立主格結構。排除C項；B、C分別因時態和語態不正確被排除。

三、交際口語類

23.---You could have asked Mr. Richards for help. He is kind-hearted.

----Yes. But that ____him a whole day.

A would have taken      B. had taken                 C. would take    D. would be taken

【解析】A：本句為承前省略的虛擬語氣主從復合句，還原后為：If I had asked Mr. Richards for help, that would have taken him a whole day.

22.----Were all the toys for the children carried to their kindergarten?

----No,____ only some of them.

A. It  was              B. they ere                 C. there were       D. there was

【解析】A：本舉考查強調結構的省略用法，補全后為:It was only some of them that were carried to their kindergarten.

21.He arrived in Hollywood in 1964,____some time later,he became a foamous actor.

A.     when               B.where                   C.that            D.which

【解析】B：干擾點是關系詞距離時間1964近，而從句中已有some time later這一時間狀語，不可能重復，所以應該是在某一地點的一段時間后，他成了著名演員，定語從句應修飾Hollywood。

20.We cannot figure out ____quite a number of insects, birds, and animals are dying out.

A.     that                B. as                      C. why          D. when

【解析】C：figure out=understand by thinking. 理解。從句意看我不明白大量物種正在消亡，缺少狀語，排除A、B項。從are dying out的時態排除D項，應該是我不明白大量物種為什么正在消亡。

19.----What did he want to know,Anne?

-----_______I could finish writing the report.

A.     When was it         B.It was when that         C.It was when    D.When it was that

【解析】D：本句承接上文考查know的賓語，所以回答應該是陳述語序的名詞性從句。When 引導的強調結構的特殊問句作賓語，用陳述語序。

18. _____is known to us all is that the old scientist, for____ life was hard in the past,still works very hard in his eighties.

A.     As; whom           B. What; whom          C. It; whose          D. As; whose

【解析】B本題考查連接代詞。_____is known to us all 是主語從句，排除AD,第一個空上的詞要做主語， 第二個空上的詞做for的賓語，代替the old scientist。

17.We live day by day ,but in the great things, the time of days and weeks ______so small that a day is unimportant.

A.     is               B.are                  C.has been            D.have been

【解析】A本題考查主謂一致。句子的主語是the time，是第三人稱單數；并且根據句子的時態，要選一般現在時。

16.Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.

A.     why             B. that                 C. when             D. where

【解析】B本題考查賓語從句的連接代詞。that 引導的賓語從句，若有兩個或兩個以上，只有第一個that可以省略。Having checked the doors were closed中省略了that。

15.A woman tearfully explained _____she had recently lost her husband in a car accident.

A.     when            B. how                 C. why              D. where

【解析】B：與A、C相比，B項表示“如何“之意，更具概括事件的時間、地點等過程全貌。