【正文】
the centre of our planetary system was a difficult concept to grasp in the Middle Ages. A.定語從句,代指地方,用where/介詞+which,根據the place,可知前面用介詞at,表示在……地方,做地點狀語,介詞提前,因此用at which;根據 the crossriver traffic is the heaviest,可知是對橋所在地點的描述,因此用where,引導表語從句,故選C。which。 whereC.at which。 where the crossriver traffic is the heaviest. A. the bridge is supposed to be built should be 【點評】考查名詞性從句,本題涉及主語從句,表語從句和賓語從句。 _____ she finally succeeded in which【答案】 B 【解析】【分析】句意:珍妮最興奮的是對他來說似乎是最困難的考試,她終于成功了。What。 thatThat。 whatWhat。 whichThat。 【點評】考查名詞性從句,本題涉及what引導的主語從句和that引導的表語從句。 ___ surprised me most 是一個主語從句,從句中缺少主語,故填what; ____the girl passed the driver test是一個表語從句,句中不缺少成分,故填that。That。What。What。That。 故選A。 which【答案】 A 【解析】【分析】句意:我煩惱的是我不明白他說的話。Why。 whatThat。 whatWhat。 whatWhat。13._______ is troubling me is ______ I don39。 【點評】考查名詞性從句,本題涉及 what引導的主語從句和that引導的表語從句的應用。分析句子可知,主語從句中的謂語動詞makes 缺少主語,主語從句中缺少賓語一般用what,因此選擇 what 來引導主語從句;系動詞 is 后面的表語從句句意完整,不缺少成分,因此選擇 that 引導表語從句。That。 thatC.That。 what12._______ makes me feel worried is _______ singing stars are centered on by masses of teenagers today. A. 【點評】考查名詞性從句,本題涉及when引導的主語從句。根據時間狀語round 1565得知這里是指時間不確定。D.whyB.whether主語從句屬于名詞性從句的一種,填哪個連接詞要分析從句缺少什么成分,然后確定所選的詞。故答案選D。A. why為什么;B. that引導名詞性從句只起引導詞作用,不充當成分;C. which哪一個;D. What什么。D.C.B.10.____________ matters most in learning English is enough practice. A.選A。That【答案】 A 【解析】【分析】句意:已被證明的是動物和昆蟲有自己的語言。C.As9.________ has been proved is that animals and insects have their own languages. A.此處是主語從句做主語,從句沒有引導詞,缺少賓語,故答案為B。D.C.B.8.________ we may find interesting is that it usually takes more to be polite. A.這里就是第二個用法。who that【答案】 C 【解析】【分析】句意:在他的家里有個規(guī)定,就是先到家的人要先做飯。whoeverwhoanybody故D正確。AC兩項不能引導主語從句,which在引導名詞性從句的時候總是含有疑問的語義,而本句中并沒有疑問的語義。D.C.B.6.They lost their way in the forest, and ___ made matters worse was that night began to fall.A.A中的what是句子