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我們的信念。that引導(dǎo)的是主語從句,故空格處應(yīng)該用it作形式主語,代替真正的that引導(dǎo)的主語從句。故答案選C。【點(diǎn)評(píng)】考查it的用法,以及主語從句的應(yīng)用。13.They lost their way in the forest, and ________ made matters worse was that night began to fall. A.thatB.itC.whatD.which【答案】 C 【解析】【分析】句意:他們?cè)谏掷锩月妨?,更糟糕的是天開始黑了。根據(jù)連詞and可知,本句需要一個(gè)引導(dǎo)主語從句的連接詞,該詞同時(shí)還要能在從句里充當(dāng)主語。that不能在句中作成分;it不能引導(dǎo)主語從句;which意為“哪一個(gè)”,不符合本句語境。排除A、B、D三項(xiàng)。故選C?!军c(diǎn)評(píng)】考查名詞性從句,本題涉及what引導(dǎo)的主語從句的應(yīng)用。14.________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A.As。 whoseB.It。 whoseC.As。 whomD.It。 whom【答案】 D 【解析】【分析】句意:我們都知道,那位老科學(xué)家,過去生活很艱苦,到了八十多歲還在努力工作。第一空it is known to us all that…是個(gè)固定句型,意為“眾所周知…”;第二空為介詞+關(guān)系代詞引導(dǎo)的定語從句,先行詞the old scientist指人,作介詞for的賓語,只能用whom,故選D。 【點(diǎn)評(píng)】考查名詞性從句和定語從句,本題涉及固定句式it is known to us all that…和whom引導(dǎo)的限制性定語從句。15.They lost their way in the forest, and ________ made matters worse was that night began to fall. A.itB.whichC.thatD.what【答案】 D 【解析】【分析】句意:他們?cè)谏掷锩月妨?,情況更糟糕的是天又黑了。本題中含有一個(gè)主語從句what made matters worse,其中的what引導(dǎo)起這個(gè)主語從句,同時(shí)在主語從句中做主語。故選D?!军c(diǎn)評(píng)】考查名詞性從句,本題涉及what引導(dǎo)的主語從句的應(yīng)用。16.The place the bridge is supposed to be built should be the crossriver traffic is the heaviest. A.which。 whereB.at which。 whichC.at which。 whereD.which。 in which【答案】 C 【解析】【分析】句意:橋梁應(yīng)該建在水上交通最繁忙的地方。定語從句,代指地方,用where/介詞+which,根據(jù)the place,可知前面用介詞at,表示在……地方,做地點(diǎn)狀語,介詞提前,因此用at which;根據(jù) the crossriver traffic is the heaviest,可知是對(duì)橋所在地點(diǎn)的描述,因此用where,引導(dǎo)表語從句,故選C。 【點(diǎn)評(píng)】考查定語從句與表語從句的引導(dǎo)詞。17.He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply. A.thatB.howC.whatD.which【答案】 C 【解析】【分析】句意:上周他到北京旅行了,他在故宮所看到的給他留下了深刻的印象。分析句子結(jié)構(gòu)可知,連詞and后為一個(gè)名詞性從句,因此應(yīng)該使用what引導(dǎo),且what在從句中作主語,故選C。 【點(diǎn)評(píng)】考查名詞性從句,本題涉及what引導(dǎo)的主語從句。18.We believe ________ you have been devoted to ________ naturally of great necessity. A.that。 being