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代下文內(nèi)容做形式主語,其主要有兩種形式:It39。C. working20.It is clever ______ you ______ out the problem. A.分析句子可知,_____Macao has achieved為主語從句,從句中achieve缺少賓語,所以第一個空用what來充當賓語。C.What。 what表示“讓人困惑的事情”用what引導主語從句,表示“如何做到的”用how表方式,引導表語從句。18.______ has caused great confusion is ______ he made it without anyone else39。D.B. 【點評】考查賓語從句。that this song is worth listeningwhether this song is worth listening to 【點評】考查名詞性從句,本題涉及主語從句和同位語從句。D. whichB. that what he said做主語,主語從句中said缺賓語用what補足,故選B。D.that。 that he said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.13.They lost their way in the forest, and ________ made matters worse was that night began to fall. 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.故選C。which【答案】 C 【解析】【分析】句意:他們在森林里迷路了,更糟糕的是天開始黑了。it做題時注意看從句是否少成分。That【答案】 D 【解析】【分析】考查主語從句。If故D正確。D.B.故選A。D.What。 that【點評】考查名詞性從句,本題涉及whether引導的主語從句的應用。Whethert matter a lot to our success. A.D.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.that the President will not give in to their ;AsB.因此選C。D. thatB. that第一空為賓語從句,從句結(jié)構(gòu)完整用that起連接作用,第二空為主語從句,從句中consider缺少賓語,應該用what,故選C。 whatwhat。you consider normal probably seems just as unusual to others. A. 【點評】考查主語從句。C.WhichWhatB.此處為主語從句,從句中缺少主語,應該用what引導,故答案為A。B.that。 that【答案】 C 【解析】【分析】句意:雖然有些行為對你來說可能很奇怪,但請記住,你認為正常的行為對別人來說可能也不尋常。That。What。 ___ 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。 C.What【答案】 D 【解析】【分析】句意:委員會成員清楚的是,總統(tǒng)不會向他們的要求讓步。 【點評】考查名詞性從句,本題涉及what引導的主語從句。B.whereverWhatever has happened before or is happening now是一個主語從句,whatever既引導起這個主語從句,也在句中做主語。when are the planes to take offwhere are the p