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查名詞性從句,本題涉及what引導(dǎo)的主語(yǔ)從句的應(yīng)用。13.Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565. A.whetherB.whenC.whyD.how【答案】 B 【解析】【分析】句意:土豆被引進(jìn)歐洲具體的事件不被確定,但是可能是在1565年左右。根據(jù)時(shí)間狀語(yǔ)round 1565得知這里是指時(shí)間不確定。故選B。 【點(diǎn)評(píng)】考查名詞性從句,本題涉及when引導(dǎo)的主語(yǔ)從句。 14.It was he said disappointed me. A.that。 whatB.what。 thatC.that。 whichD.which。 that【答案】 B 【解析】【分析】句意:正是他說(shuō)的話讓我很失望。這是一個(gè)強(qiáng)調(diào)句型,it is/was that...是固定搭配,what he said是被強(qiáng)調(diào)部分, 你可以發(fā)現(xiàn)去掉it was that后, 句子仍然完整。 what he said做主語(yǔ),主語(yǔ)從句中said缺賓語(yǔ)用what補(bǔ)足,故選B。 【點(diǎn)評(píng)】考查主語(yǔ)從句的強(qiáng)調(diào)形式。15.________ his failure lies is expected ________ clear to us. A.What… to makeB.How… madeC.Where… to be madeD.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。分析句子可知,主語(yǔ)從句中的lie為不及物動(dòng)詞,所以主句中缺少狀語(yǔ),因此填where。expect ,“期望某事發(fā)生”,sth. be expected to ”某事有可能發(fā)生“。make sth. clear to sb為固定搭配,意為“向某人闡明某事,使某人弄清某事”。本句中make的賓語(yǔ)是where his failure lies是被弄清楚,要用動(dòng)詞不定式的被動(dòng)形式。因此選C?!军c(diǎn)評(píng)】考查名詞性從句及固定搭配,本題涉及主語(yǔ)從句和固定短語(yǔ)expect do.16.The question new measures should be taken to control the terrible air pollution is puzzles scientists a lot. A.that。 whatB.which。 thatC.what。 whatD.that。 that【答案】 C 【解析】【分析】句意為:應(yīng)該采取什么樣的新措施來(lái)控制空氣污染的問(wèn)題,是讓科學(xué)家非常困惑的事情。第一空根據(jù)主語(yǔ)question,可知措施并不明確,應(yīng)該指“什么樣的new measures”,關(guān)系詞應(yīng)用what;第二空,be動(dòng)詞is后的表語(yǔ)從句缺少主語(yǔ),應(yīng)用關(guān)系詞what,故選C。 【點(diǎn)評(píng)】考查同位語(yǔ)從句。注意that引導(dǎo)同住語(yǔ)從句時(shí),在句中不做成分,也沒(méi)有詞義。17.________ manners are very important in every country is known to all,but the trouble is that different countries have different ideas about ________ good manners are. A.That。 whatB.That。 thatC.What。 thatD.What。 what【答案】 A 【解析】【分析】句意:眾說(shuō)周知,禮貌在每一個(gè)國(guó)家中都是非常重要的,但是麻煩是,不同的國(guó)家對(duì)于什么是良好的禮貌有著不同的認(rèn)識(shí)。逗號(hào)前有兩個(gè)謂語(yǔ)動(dòng)詞,一個(gè)是are,一個(gè)是is known,故是兩句話,需填連詞連接這兩句話,根據(jù)句意可知,前面是主語(yǔ)從句,故填that,此處的that,只起連接作用不作任何成分。about是介詞,其后是個(gè)句子故應(yīng)填連詞把這兩句話連接起來(lái),所缺詞作are的表語(yǔ),故填what。因此選A。 【點(diǎn)評(píng)】考查名詞性從句,本題涉及that引導(dǎo)的主語(yǔ)從句和what引導(dǎo)的賓語(yǔ)從句。18._______is known to us all is that Johnson broke his promise ______ he would e to help me as soon as possible. A.It。 thatB.What。 thatC.As。 whichD.What。 which【答案】 B 【解析】【分析】句意:我們都知道,Johnso