人教版高一英語(yǔ)必修5 Unit 3 Task 課件

1、2021/8/9 星期一1Mould 5 Unit 3Task Writing a formal letter2021/8/9 星期一2Goals:The students will:1. listen to a discussion about growth hormones2. conduct an interview about GM food3. write a formal letter about GM food2021/8/9 星期一3Lets reviseMake up some sentences with the given verbs, paying attention

2、to the usage of each verb.2021/8/9 星期一4suggestavoidintendencourage政府鼓勵(lì)人們購(gòu)買(mǎi)環(huán)保產(chǎn)品。The government encourages people to buy environmentally-friendly products.2021/8/9 星期一5Lead inpay for the use of plastic bagsforagainst?2021/8/9 星期一6 Have you ever heard of another kind of pollution, gene pollution? A kin

3、d of pollution that has somethingto do with gene2021/8/9 星期一7Lets learn Science is developing so fast that it is beyond our imagination. Gene technology is one of the more advanced technologies.We are all common people. The closest contact for us to be with the gene technology is GM food. 2021/8/9 星

4、期一8What does GM stand for?Genetically modified.轉(zhuǎn)基因的2021/8/9 星期一9What is GM food? GM food refers to the food produced using gene technology.2021/8/9 星期一10Lets shareHave you ever had any GM food?2021/8/9 星期一11 Are there any differences between GM food and natural food?(1)Does it taste the same as natu

5、ral food?(2)Is it cheaper or more expensive than natural food?2021/8/9 星期一12Lets listen You are a student representative who had the chance to speak to a scientist who is giving a talk on GM food at your school. Before meeting the scientist you had done research on GM food and taken notes. 2021/8/9

6、星期一13NotesGrowth hormones are used in meat, eggs and vegetables.Growth hormones make animals grow fatter.Growth hormones keep animals healthy.GM food is more expensive than natural food.GM food technology is a new scientific development.growth hormones: 荷爾蒙；生長(zhǎng)激素2021/8/9 星期一146.GM food tastes better

7、than natural food.7.Free-range food comes from animals that are given drugs.8.Free-range food is cheaper than GM food.9.Free-range animals are kept in dark sheds.10.Most people would not pay more for free-range food. free-range animals: 放養(yǎng)動(dòng)物2021/8/9 星期一15 Now lets listen to the conversation between

8、you and the scientist and confirm if your notes are correct, paying attention to the following expressions:No, thats not true/right.Not at all.I dont think thats true.No, its actually2021/8/9 星期一16NotesGrowth hormones are used in meat, eggs and vegetables.Growth hormones make animals grow fatter.Gro

9、wth hormones keep animals healthy.GM food is more expensive than natural food.GM food technology is a new scientific development.fasterdont help keepcheapernotLets discuss and correct2021/8/9 星期一176.GM food tastes better than natural food.7.Free-range food comes from animals that are given drugs.8.F

10、ree-range food is cheaper than GM food.9.Free-range animals are kept in dark sheds.10.Most people would not pay more for free-range food.notthe same asnotmore expensivedont mind paying2021/8/9 星期一18Lets listen and conclude Listen to the conversation again and try to form the general idea of GM food2

11、021/8/9 星期一19GM food is cheaper than natural food because the amount produced is usually large.GM food technology is not a new scientific development. Farmers have been using it for years.GM food tastes the same as natural food.2021/8/9 星期一20Lets speak and get more The age of GM food has arrived and

12、 GM foodsare on the table of the common people. After listening to the scientist, you want to find more about GM food. You are going to interview another scientist about GM food on the following issues.2021/8/9 星期一21Safety of GM food2. Possible side effects3. Taste compared with normal food4. Cost 5

13、. Need for government control6. Popularity for buyers Do you think it is safe for people to have GM food?Are there any side effects if people have GM food?Does it taste the same as / nicer than normal food?Do you agree that GM food is more expensive than natural food?Do you think the government shou

14、ld do sth to ensure its safety?If so, what should be done?Do you think people will buy GM food?2021/8/9 星期一22Pair work Representative: Ask the scientist the six questions from the interview form. Scientist: Answer the questions using thevocabulary on page55(part B) and any other vocabulary you know.

15、Speaking Work in pairs. One is the student representativeand the other is the scientist.2021/8/9 星期一23Do you think it is safe for people to have GM food?Are there any side effects if people have GM food?Does it taste the same as / nicer than normal food?Do you agree that GM food is more expensive th

16、an natural food?Do you think the government should do sth to ensure its safety?If so, what should be done?Do you think people will buy GM food?2021/8/9 星期一24Try or not?For or against2021/8/9 星期一25 Almost all the Salad cooking oil in the supermarket is made from GM soybeansDo you think the supermarke

17、ts should sell GM food?2021/8/9 星期一26Lets read and write You are going to write a letter to the headoffice of the China Resources Suguo Supermarket.Your opinions about GM foodWhat you think the supermarket should do2021/8/9 星期一271. _ are usually written to family members, relatives, friends, classma

18、tes and etc.2. _ usually begins with a casual and friendly greeting, such as “Dear Tom”、“How are you?”. 3. Contractions such as “I cant”, “were” and abbreviations such as “CU soon” can not be used in _.formal letters or informal letters?Informal lettersAn informal letterformal letters2021/8/9 星期一28R

19、eading The basic elements and format of a formal letter on Page 56the writers addressthe datereceivers name, job title and addressformal greetingformal endingthe writers name and signature2021/8/9 星期一29a formal letter 101 High Street London 1 May,2005Mr Frank Brown Public Relations Manager Safeway Laboratories 305 Queens Drive Liverpool Dear Mr Brown,I am writing to Yours sincerely,Jim DavidsonJim Davidsonthe writers addressthe datereceivers namejob titlereceivers addressformal greetingformal endingsignaturethe writers name2021/8/9 星期一30Useful phrases