Unit1 Grammar and usage ppt课件（含音频）-（2020）新牛津译林版高中英语必修第三册.rar

Words and expressionsWords and expressionsglobalgreenhousegasdroughtcome up withcall forapplicationbrochureorganizationabsolutelybeltmedaladj. 全球的；全面的n. 温室，暖房n. 气体；煤气；汽油n. 旱灾，久旱想出，想到(公开)要求；需要n. 应用，运用；申请n. 小册子n. 组织，团体；组织工作；安排；条理adv. 绝对地，完全地；极其n. 地带，地区；腰带；传送带n. 奖章，勋章 learn about the functions of ellipsis; summarize the general rules of ellipsis; apply the rules of ellipsis in the new context.A Exploring the rulesA Exploring the rulesA Exploring the rulesA Exploring the rulesA Exploring the rulesJack and Henry are talking about a documentary on environmental protection. Pay attention to the underlined sentences and write down the words that have been left out in the brackets below. The first one has been done for you.P6Jack: Henry:Jack:Hi, Henry! Did you watch the documentary about environmental protection on TV yesterday?(1) No, I didnt.What a pity! I highly recommend it. (2) You can watch it online if you want to. Its about some of the worst environmental problems were facing today. Global warming, for example, is a major problem caused by greenhouse gases. It may lead to extreme weather events: droughts, heatwaves and so on. (3) I felt worried when watching the documentary.Henry: Jack: Henry:Jack:Henry:Does it also talk about solutions to these problems?Yes. It includes interviews with more than 20 of the worlds leading experts on environmental issues. All of them come up with creative ideas on how to solve these problems. (4) Some call for the application of modern technology, and others a change of lifestyle.I wish we could also do something to help. (5) Got any ideas?What about making a brochure about environmental problems?(6) Sounds great! Lets get started after lunch.1 What is the documentary about?2 How did Jack feel when watching the documentary?3 What do the leading experts suggest doing to solve the environmental problems?1 What is the documentary about?Its about environmental protection. / Its about some of the worst environmental problems we are facing today.2 How did Jack feel when watching the documentary?He felt worried when watching the documentary.3 What do the leading experts suggest doing to solve the environmental problems?Some call for the application of modern technology, and others a change of lifestyle.1 No, I didnt (watch the documentary about environmental protection on TV yesterday).2 You can watch it online if you want to ( ).3 I felt worried when ( ) watching the documentary.4 Some call for the application of modern technology, and others ( ) a change of lifestyle.5 ( ) Got any ideas?6 ( ) Sounds great!watch itI wascall forHave youIt / ThatWrite down the words that have been left out in the brackets below. P6We sometimes use ellipsis to avoid (1) _ (stressing/repeating) one or more words when the meaning is clear.We can use ellipsis: in short responses; in infinitives; after some conjunctions like if, when and while; in clauses with the same pattern and the same verb; at the beginning of a sentence in (2) _ (informal/formal) speech.repeatingWorking out the rulesinformalP6What is ellipsis? When can we use ellipsis?Whats the function of ellipsis?Possible answerEllipsis means the act of leaving out a word or words from a sentence deliberately. We can use ellipsis when the meaning can still be understood without using a word or certain words. In other words, ellipsis is used when you do not want to repeat some words or phrases whose meaning is obvious. Using ellipsis is an efficient way to make sentences concise.EllipsisEllipsisEllipsisEllipsis省略省略省略省略为了使语言简洁或避免重复，省略句中的一个或几个句子成分，这种语法现象称为省略。运用省略手法，可以避免重复，使句子简练。常见的省略现象有以下几种情况：1 在非正式场合，如果语境清晰，常省略主语或主语和动词。如：(Are you) Ready?还原句子中省略的部分：1 Beg your pardon.2 Sounds like a good idea.3 Anything wrong?I beg your pardon.It sounds like a good idea.Is there anything wrong?2 在简短对话中，答句常保留主语和助动词，省略其后主要动词以及上句出现过的其他内容。如：Did you go to the museum yesterday?No, I didnt (go to the museum yesterday).3 在并列句结构中，常省略与前面相同的主语、谓语或其他成分。如：Peter entered the classroom and (Peter) sat at his desk.I like dancing but my brother (likes) singing.What I said made Jack happy but (what I said made) Jane angry.用括号标出可省略的部分:1 I study at college and my sister studies at high school.2 When summer comes, the day is getting longer and longer, and the night is getting shorter and shorter.( )( )4 从属连词when、where、if、than 等后常用省略结构。如：You should be careful when (you are) crossing the road.You need to make improvements where (it is) necessary.Please call me back if (it is) possible.I love English more than (I) ever (loved English).用括号标出可省略的部分:1 When he was still a boy of 10, he had to work day and night.2 If it is necessary Ill explain to you again.( )( )5 动词不定式作宾语或宾语补足语时，在后句的动词不定式结构中，常省略与前句重复的to 后面的内容。如：You dont have to do it if you dont want to (do it).Youd better not take medicine unless your doctor told you to (take medicine).在to be 或to have done 结构中，省略时往往保留be 或have。如：I am busier now than I used to be (busy).Has Mike finished his project?He seems to have (finished his project).用括号标出可省略的部分:1 Are you going there? Yes, Id like to go there.2 He didnt give me the chance, though he had promised to give me the chance.( )( )B Applying the rulesB Applying the rulesB Applying the rulesB Applying the rulesB1 Find the mistakes and rewrite the sentences using ellipsis.1 I cannot watch the documentary this weekend, though I would like._2 Cows live on land, and fish the water._3 The Amazon rainforest is smaller now than was 50 years ago._I cannot watch the documentary this weekend, though I would like to.P7Cows live on land, and fish in the water.The Amazon rainforest is smaller now than 50 years ago.B1 Find the mistakes and rewrite the sentences using ellipsis.4 He had planned to borrow a book on environmental protection, but he didnt do._5 When taking photos of wildlife, every effort should be made to ensure that we keep away from the animals._He had planned to borrow a book on environmental protection, but he didnt.When taking photos of wildlife, we should make every effort to ensure that we keep away from the animals.P7Last weekend, I took part in a forest clean-up activity. It was organized by GreenHope, an organization devoted to protecting forests. At first I didnt wantto take part in the forest clean-up activity, but then I thought, “What if nobody goes?” Our team leader, Joe, took us to a forest outside the city. I was sad to see litter everywhere. There was a “No littering is allowed here” sign at the entrance to the forest, but that didnt stop people from throwing their rubbish on the ground. B1 Jack is sharing with his classmates his experience of taking part in a forest clean-up activity. Use ellipsis where necessary. Put brackets around the word(s) that can be left out.( )( ) P7Joe divided us into two groups: one group cleaned up the north side of the forest, and the other group cleaned up the south side of the forest. We worked for several hours and we were happy to see that the forest looked cleaner than it had looked before. It was absolutely worth our effort! Therell be another clean-up activity in the green belt next Saturday. You can find Joe and sign up if youre willing to help. Everyone who takes part in the activity will receive a medal. Ill join you too if I have time.( ) ( ) ( ) ( ) ( ) ( ) ( ) P7B3 In pairs, describe the pictures below using ellipsis to call for the protection of theenvironment. Use the example to help you. You can also draw a picture and think of a slogan.P7When the water is too dirty to drink and the air too polluted to breathe, will you be able to look at your children and say, “What a beautiful world!”?P7P7Possible answerDrive less, and we will have a greener world.When building cities, think of Mother Nature.