【正文】 , 你可以發(fā)現(xiàn)去掉it was that后, 句子仍然完整。D.when did the school sports meeting endC.17．_______ is troubling me is ______ I don39。 what which【答案】 A 【解析】【分析】句意：我煩惱的是我不明白他說的話?！军c評】考查名詞性從句及固定搭配，本題涉及主語從句和固定短語expect do. 【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。that。故選D。B.that。分析句子可知，believe后接賓語從句，賓語從句中you have been devoted to缺少賓語，表示事物故用what；what you have been devoted to為主語，從句作主語，謂語動詞用單數(shù)，故選D。 to be in Britain again.A.kids likeThat39。that everyone B. It seems that...好像，似乎，that引導的主語從句，it為形式主語；love to do ... 根據(jù)句意故選A 。27．That is _____we were late last time. A.what【答案】 C 【解析】【分析】句意：這就是上次我們?yōu)槭裁催t到的原因。you e or not. A.It。puzzles scientists a lot. A.注意that引導同住語從句時，在句中不做成分，也沒有詞義。What。WhichC.which。 what根據(jù)句末or not，要用連詞whether；有句子結(jié)構(gòu)可知，此處是whether引導主語從句，放在句末，用it作形式主語。C. whether為什么遲到，用why，引導名詞性從句，做表語，故選C。C.D.C.B.26．It is still unknown how AI（人工智能）_______the way of our life as well as the world. A.be like表示像，like是介詞，like沒有詞形變化。B.how he happy was【答案】 B 【解析】【分析】句意：富蘭克林告訴他們所有人他再一次來到英國是多么的開心。23．Franklin told them allall that。D.21．It was never clear ________ the man hadn39。what。What。That。What。That。Why… making【答案】C 【解析】【分析】句意：他的失敗之處有可能被我們弄清楚。How… made故選A。That。What。根據(jù)is判斷，此處為主語從句，分析該從句，缺少主語，用what。ItB. 【點評】考查主語從句的強調(diào)形式。disappointed me. A.13．________ we may find interesting is that it usually takes more to be polite. A.what【答案】 D 【解析】【分析】本題中含有一個主語從句what made matters worse，其中的what引導起這個主語從句，同時在主語從句中做主語。C.it。 thatBefore9．____ he will offer us enough help doesn39。C.【點評】考查強調(diào)句型的使用和對特殊疑問句的回答，注意問什么回答什么，也就是說疑問詞what是句子的主語，回答的內(nèi)容也需要在句子中能作主語。B.句意：誰起著重要作用，這是眾所周知的。BC項都屬于副詞的性質(zhì)，都不能做主語，通常只能做狀語；no matter what只能用來引導狀語從句，故選A。whenever5．Some people believe _______ has happened before or is happening now will repeat itself in the future. A.C.故選D。 that【答案】 B 【解析】【分析】句意：眾所周知，中國已經(jīng)