高中英語必修三unit4：learning-about-language講解學(xué)習(xí)

1、高中英語必修三Unit4：Learning-about-languageAnswer key for exercise 3 on page 28Is the moon a planet? This question is _ if students are to show that they understand the nature of _. Some scientists think that the earth _ the moon because the moon circles our planet. Others believe that the moon _ before th

2、e earth was formed. They think that earlier in time it travelled through space as a small planet which was caught by the earths gravity. _, it goes around our planet. fundamental astronomygave birth to existedAs a result The evidence for this theory is that the _ that make up the rocks on the moon s

3、eem to be different from those on earth. What is clear is that the moon is smaller than the earth and this _ it _ escaping from the earth. Although its origin may still be a _, the moon can never be anything more than a satellite of the earth.atomspreventsfrompuzzleEmotional wordsCalm words Violent

4、angry rude Shocked excited crazy Patient gentle relaxingKind easy-going calmAnswer key for exercise 4 on page 28Violent patient gentle angry rude relaxing kind shocked excited easy-going calm crazyNoun clauses asNoun clauses as the subjectthe subjectUnit 4 Grammar1. _ watch was lost is unknown.2. _

5、you did is right.3. _ we will go for an outing tomorrow remains unknown.4. _ we need is time.5. _ will be our monitor hasnt been decided yet.whether what who whose whateverUse the words below to fill in the blanks.WhetherWhatWhateverWhoseWho上面的空大家都填對(duì)了嗎上面的空大家都填對(duì)了嗎? ? 上面每個(gè)句子都出現(xiàn)了的上面每個(gè)句子都出現(xiàn)了的主主語從句語從句，大家

6、能找到嗎？，大家能找到嗎？1. Whose watch was lost is unknown.2. Whatever you did is right.3. Whether we will go for an outing tomorrow remains unknown.4. What we need is time.5. Who will be our monitor hasnt been decided yet.1. Whose watch was lost is unknown.2. Whatever you did is right.3. Whether we will go fo

7、r an outing tomorrow remains unknown.4. What we need is time.5. Who will be our monitor hasnt been decided yet. 主語從句主語從句 (Subject Clause)如果一個(gè)句子在復(fù)合句中充當(dāng)一個(gè)主語如果一個(gè)句子在復(fù)合句中充當(dāng)一個(gè)主語, , 那么這個(gè)句子就是那么這個(gè)句子就是主語從句主語從句。That he finished writing the composition in such a short time surprised us all.What we need are good

8、 doctors.Whom we must study for is a question of great importance.連接詞連接詞1. that That the earth moves around the sun is well known.2. whether Whether he will come or not is not known yet.3. who Who will be sent there has not been decided. 4. what What you need is more practice.5. which Which one is t

9、he best is not clear.6. when, where Where he has gone is a question.7. why, how Why there is gravity is hard to understand. How he can earn a living in Britain remains a big problem.8. whoever、whatever、whichever可引可引 導(dǎo)主語從句。導(dǎo)主語從句。 Whoever comes will be welcome. Whatever he did was right. Whichever of

10、you comes in will receive a prize. 引導(dǎo)主語從句連詞有引導(dǎo)主語從句連詞有that, whether, who, what, whatever等。等。 2. 連詞位于句首不能省略。連詞位于句首不能省略。 3. 主語從句大多數(shù)情況下視為第主語從句大多數(shù)情況下視為第三三 人稱單數(shù)人稱單數(shù), 但在關(guān)系代詞但在關(guān)系代詞what引引導(dǎo)導(dǎo) 的主語從句后謂語動(dòng)詞的數(shù)要的主語從句后謂語動(dòng)詞的數(shù)要根根 據(jù)句意而定。據(jù)句意而定。小結(jié)小結(jié)為了防止句子頭重腳輕，通常把形式為了防止句子頭重腳輕，通常把形式主語主語it 放在主語位置，真正主語后置。放在主語位置，真正主語后置。1. It i

11、s certain that he will win the match.2. It is true that he has made a very important discovery in chemistry.3. It is very likely that they will hold a meeting.4. It is strange that the man should have stuck to his silly ideas.5. It is a pity that we wont be able to go to the south to spend our summe

12、r vacation.6. It is still a mystery what caused the accident. 7. It is said that he has gone to Shanghai.8. It seems that he has seen the film. 以以that 引出的主語從句引出的主語從句,常以形式常以形式 主語主語it引導(dǎo)引導(dǎo), 結(jié)構(gòu)為結(jié)構(gòu)為: It is +形容詞形容詞/ 名詞名詞/某些動(dòng)詞某些動(dòng)詞ed + that 從句。從句。 2. 在有些在有些that從句中要用虛擬語氣從句中要用虛擬語氣 (should +do/should +have don

13、e)。小結(jié)小結(jié)whether與與if均為均為“是否是否” 但下列情況下只用但下列情況下只用whether ： 1. 引導(dǎo)主語從句并在句首引導(dǎo)主語從句并在句首 Whether he will come is not clear. 2. 引導(dǎo)表語從句引導(dǎo)表語從句 The question is whether hell come.3. whether從句作介詞賓語從句作介詞賓語 Im not sure about whether well win.4. 引導(dǎo)讓步狀語從句時(shí)引導(dǎo)讓步狀語從句時(shí) Whether you like it or not, youll have to do it.1. 主語從

14、句位于句首時(shí)必須由連接詞主語從句位于句首時(shí)必須由連接詞 引導(dǎo)。引導(dǎo)。2. 主語從句后置時(shí)引導(dǎo)詞主語從句后置時(shí)引導(dǎo)詞that可省略。可省略。3. 主語從句位于句首時(shí)主語從句位于句首時(shí),不能用不能用if 引導(dǎo)。引導(dǎo)。4. 主語從句后置時(shí)主語從句后置時(shí), 可以用可以用if引導(dǎo)。引導(dǎo)。注意事項(xiàng)注意事項(xiàng) 1. _makes this shop different is that it offers more personal services. A. What B. Who C. Whatever D. Whoever 2. These wild flowers are so special I wou

15、ld do_ I can to save them. A. whatever B. that C. which D. whichever3. _in the regulations that you should not tell people the passport of your e-mail account. A. What it required B. What requires C. It is required D. It requires4. It is pretty well understood _ controls the flow of carbon dioxide i

16、n and out of the atmosphere today. A. that B. when C. what D. how5. _ made the school proud was _ more than 90% of the students had been admitted to key universities. A. What; because B. What; that C. That; what D. That; because6. It now appears _ they are in need of help. A. that B. which C. what D

17、. how7. _ knows the truth will tell you about it. A. Who that B. Whoever C. Whom that D. That who8. It is good news _ they will arrive in a few days. A. which B. what C. that D. how 他出生在何地還不知道。他出生在何地還不知道。2. 誰會(huì)贏得比賽還不知道。誰會(huì)贏得比賽還不知道。3. 誰來都?xì)g迎。誰來都?xì)g迎。4. 那個(gè)人為什么被謀殺尚不知道。那個(gè)人為什么被謀殺尚不知道。Where he was born has not

18、 been found.Why the person was murdered is still unknown.Who will win the match is still unknown.Whoever comes is welcome.His discovery has not yet been proved.What _.Do the other astronomers accept his ideas? It remains a question.Whether _.The first appearance of life on earth is still a mystery to scientists.How _.has not yet been proved is his discovery other astronomers accepts his ideas remains a questionlife first appeared on earth is s