【正文】 ______ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A.5．Has it been announced ______? A.【點評】考查名詞性從句，it作形式主語，關(guān)系副詞when引導(dǎo)的從句作真正的主語。grades have a direct connection with future success is still a question.A.t matter too 。What引導(dǎo)主語從句______ I call my “home”且【點評】考查名詞性從句，本題涉及whether引導(dǎo)的主語從句的應(yīng)用。故選A。B.12．They lost their way in the forest, and ________ made matters worse was that night began to fall. A.Which15．_______ 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 what引導(dǎo)的主語從句和that引導(dǎo)的表語從句的應(yīng)用。it以及what的含義。C.故選B. 【點評】考查名詞性從句，本題涉及what引導(dǎo)的主語從句和how引導(dǎo)的表語從句。A.why：為什么，why your eyes hurt做is的表語，how：怎樣，what：什么，when：什么時候，故選A。which【答案】 C 【解析】【分析】句意：不要在意那些嘲笑你的人，最重要的是你如何看待你自己。What（什么），where（哪里），when（什么時候）which（哪一個）。ThisAs【答案】 C 【解析】【分析】句意：她告訴我對于她來說最重要的就是她的家庭。when does the school sports meeting end【答案】 A 【解析】【分析】句意：你能告訴我昨天下午學(xué)校學(xué)校運動會什么時候結(jié)束的嗎？could you tell me后接賓語從句，用陳述語序，疑問詞+主語+謂語，因此排除B、D；根據(jù)yesterday afternoon，昨天下午可知，此句是過去時態(tài)，故選A。it為形式主語，how從句為真正的主語。D. why 【點評】此題考查名詞從句的引導(dǎo)詞辨析。whenhow【點評】此題考查了seem的句型搭配 ,涉及到形式主語；love的短語搭配，動詞不定式短語作賓語。how can she help meD.D.The thing that whichThat。s anxiety is one39。whichs sweet childhood memories. A.ThatC.D.D. thatwhat【點評】主語從句主要有三類：1）（1）由連詞that引導(dǎo)的主語從句:引導(dǎo)詞that無含義,在句中不做成分,不可以省。 whetherno matter what【答案】 A 【解析】【分析】句意：一些人認為之前發(fā)生的或現(xiàn)在正在發(fā)生的任何事情在將來都會重復(fù)發(fā)生。It。 why【答案】 C 【解析】【分析】句意：最讓我吃驚的是那個女孩通過了駕駛考試。2．___ surprised me most was ____the girl passed the driver test. A.B.What。What。As。D.when are the planes to take off6．In the past decade, our education system focused。注意：if不能引導(dǎo)主語從句。 What在從句中充當(dāng)call的賓語。9．____ made me more unhappy was ___ the boy asked my friend to be his girlfriend and she agreed. A.【點評】考查了名詞性從句，本題涉及what引導(dǎo)的主語從句以及that引導(dǎo)的表語從句。Whati