牛津版（深圳 廣州）英語九下 Unit 4 Natural disasters 第3課時(shí)（Grammar語法）導(dǎo)學(xué)案（無答案）

1、第3課時(shí) Grammar語法課堂語法精講(一)it作代詞的用法it作代詞時(shí)，除了作人稱代詞之外，還有以下用法：1.it用來指除人以外的一切生物和事物，可指時(shí)間、距離、天氣、溫度、度量等。Whats the weather like today?今天天氣怎么樣？Its sunny.很晴朗。2.it可用來代替指示代詞this和that。Whats this/that?這/那是什么？Its an apple.是蘋果。3.it指嬰兒或不明身份的人。Is it a boy or a girl?是男孩還是女孩？(二)it作形式主語 當(dāng)不定式、動名詞、從句等用作主語時(shí)，為了避免頭重腳輕，通常在句首使用形式主

2、語it，而把真正的主語放在句子末尾。其常用的句型有： 1. It takes (+sb.)+some time+to do sth.意為“做某事花了(某人)多少時(shí)間”。 It will take half an hour to walk there.步行到那里需要半個(gè)小時(shí)。2.it is+adj.(for/of sb.)+to do sth. 如果形容詞是描述事物的，如difficult，easy，important等，用for；如果形容詞是描述不定式行為者的性格、品質(zhì)的，如kind，clever，nice等，則用of。 Its important for us to work hard.努力

3、工作對我們來說很重要。 It is very kind of you to lend me the book.你把書借給我實(shí)在太好了。 3.It is+adj./n.+that從句，其中that從句是真正的主語。 Its a pity that he hasnt passed the exam.他沒通過考試真遺憾。 4.It+系動詞(seem, appear)+從句，意為“似乎/看起來”。 It seems that he knows everything.他好像什么都知道。(三)it作形式賓語 當(dāng)不定式、動名詞、從句等復(fù)雜成分用作賓語且其后跟有賓語補(bǔ)足語時(shí)，通常會在賓語補(bǔ)足語前使用形式賓語i

4、t，而將真正的賓語移至句末，其基本結(jié)構(gòu)為“動詞+it+賓語補(bǔ)足語+不定式(或從句)”。其常用的句型有： 1.sb. thinks/finds/believes+it+adj.(+for sb.)+ to do sth.意為“某人認(rèn)為/發(fā)現(xiàn)/相信做某事(對某人來說)是的”。 He found it easy to work out the Maths problem.他發(fā)現(xiàn)算出這道數(shù)學(xué)題很容易。2.sb. thinks/finds/believes+it+adj.+that從句，意為“某人認(rèn)為/發(fā)現(xiàn)/相信”。I think it necessary that everyone should do

5、 something to protect the environment. 我認(rèn)為大家都有必要為保護(hù)環(huán)境出一份力。 3.sb. thinks/finds/believes+it+n.+to do sth.意為“某人認(rèn)為/發(fā)現(xiàn)/相信”。I think it my duty to help him.我認(rèn)為自己有責(zé)任幫助他。課堂精練.按照句子結(jié)構(gòu)的語法性，在空格處填入一個(gè)適當(dāng)?shù)脑~1. _ is not easy to ask her to stop.2. _ was on Sunday, an American friend of mine came to see me.3. _ is a ver

6、y long way from here to Shenzhen Bookstore.4. I found _ hard to go to sleep.5. _ took me a week to finish reading the book.用合適的代詞填空1. _ is raining heavily outside.2. This is not my dictionary. _ is Lilys.3. _ is 7 oclock. Lets go to school.4. _ is necessary for us to exercise every day. 5. How far i

7、s _ from here to the cinema?6. _ seems that she is happier than before.閱讀填空 請閱讀全文，并從下列方框里的六個(gè)句子中選擇五個(gè)還原到原文中，使原文的意思完整、連貫。A. If you have a bad immune system, you can be infected more easily.B. Avoid close contact with people in the outside.C. Take your temperature each day for 14 days.D. If you want to

8、go out, you should wear a hat.E. It can protect you and others from getting infected.F. As normal people, heres what you should do to play your part.Recently, COVID-19 has spread quickly all over the world. In order to deal with the outbreak, the Chinese government has taken some strong action. Thou

9、sands of doctors and nurses have also fought at the front. 1._Stay at home. Dont go out unless you dont have anything to eat. If you come back home from other cities, especially Wuhan, Hubei Province, tell the community and stay at home alone. 2._ If you have a fever or cough, then go to hospital at

10、 once!Wear masks outdoors. Wearing a mask is one of the most effective ways. 3._ A mask is also needed to prevent you from spreading germs (細(xì)菌) to others. Avoid going to crowded places such as hospitals, railway stations and airports. But if transport or movement is necessary, do wear a mask. Wash y

11、our hands frequently and properly. Wash your hands with soap and running water thoroughly (徹底地) for at least 15 seconds. Especially after you come back from the outside.Exercise regularly. This is one of the most important ways to help you stay away from infection (感染). 4._ So have some exercise to make your immune s