【正文】 what。 it。 it。 what。t be undone. (諺語)已成定局,無可挽回.　　What we can39。t finish the job on time? 　　A. this B. that C. he D. it　　2. It worried her a bit _______ her hair was turning grey. 　　A. which B. that C. if D. for　　3. _______ is a fact that English is being accepted as an international language.　　A. There B. This C. That D. It　　二、學(xué)習(xí)主語從句應(yīng)該注意的幾個問題　　1)引導(dǎo)詞that與what　　what既有引導(dǎo)主語從句的作用,同時又在從句中作句子成分(主語、賓語、表語等).這時what相當(dāng)于all that/everything that...,常譯成所……的(東西、事情、話等.)。人們相信……　　It is suggested that...有人建議……　　It must be pointed out that...必須指出……　　It has been proved that...已證明…….例如:　　It is believed that at least a score of buildings were damaged or ,至少有二十座樓房遭到破壞或徹底毀掉.　　It is suggested that the meeting should be put .　　It39。 6——10CACAC B. This is an exciting news D. What was said12. __________ that their daughter got an opportunity to study abroad. C. It is said A. It says C. It’s B. This is A. That’s C. That B. Ass Jiangxi Province killed 13 people D. doesn’t it8. ___________ is known to all that Shenzhou VI Launched Successfully. A. is it C. goingA. to goB. I D. it5. ________ will take you a lot of time to find him in the crowd. C. her B. thisnecessary to take off our shoes when we enter the lab? (MET88)A. everyoneC. That D. it3.如：It’s very kind of you to help me with the work.=You are kind to help me.It seemed selfish of him not to share his dictionary with others.=He seemed selfish not to share his dictionary with others.7. It + be +名詞詞組 + 動詞不定式，如：It is not a good habit to stay up too late.8. It + be + 名詞或形容詞 + 動名詞，這類名詞和形容詞常常是：good, no good, no use, a waste of, useless, senseless等，如：It’s a waste of time talking to her any more.It is no use arguing about the matter with him.9. It + take ( sb. )+ 時間（金錢）+ 動詞不定式，如：It took the workers almost three years to finish building the dam.It will take a whole day to get to the top of the mountain on foot.實(shí)戰(zhàn)演練：1. It is generally considered unwise to give a child ② It is necessary for college students to master at least a foreign language It作形式主語常見句型動詞不定式，動名詞或主語從句作主語時，通常把它們放在謂語動詞前，而用it作形式主語，放到句首，常見句型有：1. It + be + 形容詞+主語從句，如：It is uncertain whether he can e to Jenny’s birthday party or not.2. It + be + 名詞詞組 + 主語從句，這類名詞有：a fact, a pity, a shame, an honour，a question等，如：It’s a pity that you missed the exciting football match.It remains a question whether he will e or not.3. It + be + 過去分詞 + 主語從句，這類過去分詞有：announced, believed, expected, hoped, decided, reported, said, shown等， 如：It is reported that 16 people were killed in the earthquake.It is not decided who will give the operation to the patient.4. It + 不及物動詞(seem, appear, happen等) + 主語從句, 這類不及物動詞有：appear, happen, seem等， 如：It seemed that he didn’t tell the truth.It happened that I was out when he called.5. It + be + 形容詞 + for sb.）+ 動詞不定式這類句型常用形容詞easy, difficult, hard, important, possible，wise等作表語，有時候?yàn)榱藦?qiáng)調(diào)不定式動作的執(zhí)行者，常在不定式前加for sb，如：It’s necessary for the young to master two foreign language.It is unwise to give the children whatever they want.這類形容詞有：easy, difficult, hard, important, possible，wise6. It + be + 形容詞 + of sb. + 動詞不定式，這類形容詞常是表示心理品質(zhì),性格特征的形容詞，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。 ① It is foolish of you to give up such a good chance.如：grateful等，這時要用 該句型中的形容詞通常是表示事物的特點(diǎn)或特征的如difficult，hard，easy，impossible，necessary，important等，此時用for；或表示人的性格特征或特點(diǎn)的如nice，good，bad，kind，silly，foolish，wise，clever，do+ofsb.n.++theirotherhelp theywonderclassmates. It isareonthetheit matterwhetherwhere/＋ ( It’s no wonder。t Itfear.◇wildlywashisbutwasthat→Itwithbeatingheartinsideto becalm,town.② Hefromingwasteato→Therethedownpipebigisthat如：① Ithappen的適當(dāng)形式＋that從句。＋seem／language.anacceptedisthata ② Itlastsportsmissed(that)a 如：① Itnews, one’s duty等。fact，agoodpity，an It + be +名詞+ that從句◇② It is well known that the earth goes around the sun.freesetanimalshavetheyonehoped ① Itknown等。hoped,reported,hard注意: 該句型中的形容詞是（un）important, necessary等時，從句應(yīng)為 (should )+動詞原形。(should)thatisthebethat hequite如：① Ittrue，good，right，wrong，（un）important，useless，surprising，clear，unusual，lucky，certain, necessary等。實(shí)用文案常用it作形式主語的句型結(jié)構(gòu)◇ It + be +形容詞+ that從句可用于此句型的形容詞有: wonderful,iscertainwillatmeeting.② It is surprising that he came late to school this morning.③ Itimportantwestudy◇ It + be + ed 分詞+ that從句 適用該句型的過去分詞主要有: said,announced,thought，told，believed，expected，decided，suggested,如：isthatdaywillenoughtothem ③ It is suggested that the sports meeting (should ) be put off until next week.注意: 該句型的過去分詞是suggested時，從句應(yīng)為 (should )+動詞原形。 適用該句型的名詞（詞組）有: ahonor，athing，asurprise，goodispityyouthemeetingweek.isfactEnglishbeingasinternational◇ Itappear／該句型?？梢赞D(zhuǎn)換成含不定式的簡單句。seemsthereawasteingfromtown.seemsbebigpipedowntheappearedbuthiswaswildlyfear.appearedhecalm,insideheartbeatingwithdoesn39。matter It doesn’t make much difference等)when/which/等從句。如：① Doesifcan39。finishjobtime?② Theyallnoshouldeachwithstudies.◇ Itbeadj./(for/sb.)tosth.careless，rude，brave，cruel，careful，of。 某人和這些形容詞可以構(gòu)成主系表結(jié)構(gòu)。he or she wants. (NMET 1997)A. however B. whatever C. whichever D. whenever2. In fact is a hard job for the police to keep order in an important football match. (2001 上海)A. this B. that C. there is a fact that English is being accepted as an international language. (NMET1995)A. There B. This D. It4. Is A. It C. We D. They6. It is no use his _________ there, the situation is hopeless now. B. to be going D. having gone7. It is never too late to learn, ________? B. isn’t it C. does it A. As B. What C. It D. That9. _______ is reported in the newspaper, the Earthquake in east China39。 A. It D. What10. ___________ certain that his invention will make people’s life convenient. D. What’s11. _________ that there is another football match on t