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allyFestivaltheThanksgivingB.youhow.【點評】it是人稱代詞,在句子中可以做形式主語,形式賓語,這是經(jīng)常考察的內(nèi)容,平時應(yīng)注意總結(jié),加強(qiáng)練習(xí).19.I句意:能算出這道難題,你真是太聰明了。It39。 to work【答案】D 【解析】【分析】it可指代下文內(nèi)容做形式主語,其主要有兩種形式:It39。D. workingC. workingB. to work18.It is clever ______ you ______ out the problem. A.故選B。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(dāng)賓語。That。 whatC.What。 what17._____Macao has achieved shows _____one country, two systems principle is the best solution to the Macao and Hongkong question, left by history. A. 【點評】考查過去時態(tài)。D.when did the school sports meeting endC.when the school sports meeting ended 【點評】考查名詞性從句,本題涉及what引導(dǎo)的主語從句。 D.C.B.is known to all is that the earth is smaller than the sun. A.15. what he said做主語,主語從句中said缺賓語用what補(bǔ)足,故選B。 that【答案】 B 【解析】【分析】句意:正是他說的話讓我很失望。D.that。 thatB.that。 he said以及what的含義。此處為主語從句,從句中缺少主語,應(yīng)該用what引導(dǎo),故答案為A。D.The thingB.What 【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。 _____ she finally succeeded in which【答案】 B 【解析】【分析】句意:珍妮最興奮的是對他來說似乎是最困難的考試,她終于成功了。What。 thatThat。 whatWhat。 whichThat。【點評】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.本句中make的賓語是where his failure lies是被弄清楚,要用動詞不定式的被動形式。expect ,“期望某事發(fā)生”,sth. be expected to ”某事有可能發(fā)生“。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。Where… to be madeHow… madeWhat… to make主語從句屬于名詞性從句的一種,填哪個連接詞要分析從句缺少什么成分,然后確定所選的詞。故答案選D。A. why為什么;B. that引導(dǎo)名詞性從句只起引導(dǎo)詞作用,不充當(dāng)成分;C. which哪一個;D. What什么。D.C.B.10.____________ matters most in learning English is enough practice. A.選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.As9.________ has been proved is that animals and insects have their own languages. A.此處是主語從句做主語,從句沒有引導(dǎo)詞,缺少賓語,故答案為B。D.C.B.8.________ we may find interesting is that it usually takes more to be polite. A.根據(jù)句意可知,句子主語是一個主語從句,引導(dǎo)詞即起引導(dǎo)作用又要做從句的一個成分,所以第一空填What;第二空是that引導(dǎo)的