高中英语新课标外研版必修4教案Period2VocabularyandReading

1、Period 2 Vocabulary and Reading The General Idea of This Period In this period,we ll learn something about a famous Chinese scientistYuan Longping,who is called “the father of hybrid rice” .The teacher may ask the students to get the main idea of each paragraph in the course of fast reading.Then the

2、 teacher may show them on the screen,such as staple,leading,nickname,species,etc.By guessing from the whole context they will have a good sense of enlarging their vocabulary and this is very important in learning a language.Then we ll do some careful reading and exercises to consolidate our understa

3、nding of the text.Meanwhile we can learn some reading strategies such as skimming and word guessing.Teaching Important Points Make the students learn the story of Yuan Longping and his contribution to China as well as the world.Learn and master some important words and phrases in this period.Teachin

4、g Difficult Points How to help the students improve their reading ability and understand the passage better.How to master the important Language Points in this passage.Teaching Methods Fast reading to get the main idea of the text. Intensive reading to understand the passage better.1 / 13 Discussion

5、 to help the students understand what they ve learned better.Explanation to help the students master some Language Points.Teaching Aids a tape recorder a multimediaif possible Three Dimensional Teaching Aims Knowledge and Skills Train the students reading ability. Learn some useful words an expressi

6、ons. Learn some information about the famous scientist. Process and Strategies Make the students know more about Yuan Longping and let the students learn his spirits of diligence and perseverance.Feelings and Value Through the study of this period the students will surely have a better understanding

7、 of this famous scientist and learn from him and make contribution to our country.Teaching Procedures Step 1 Greetings and Revision T:Greet the whole class as usual.Now,let s have a quiz.Show the following on the screen.2 / 13 Write the scientist by the statement. Example:She studies the structure o

8、f all living things.She is a biologist.1.She studied radioactivity. _ 2.He works in a research laboratory which develops new types of plastics._ _ 3.He studies the behaviour of wild pandas. 4.They discovered the life molecule分子DNA. _ 5.They are making a complete list of all the plants in the nature

9、reserve自然爱护区 . _ Suggested answers: 1.Shes a physicist. 2.He s a chemist. 3.He s a zoologist. 4.They are geneticists. 5.They are botanists. Step 2 Fast reading T:OK,so much for revision.Show the students the title The Student Who Asked Questions on the screen or write it on the 3 / 13 blackboard.Thi

10、s is the title of the reading passage we ll learn today.Guess what the passage might be about.After a while of thinking,ask few students to answer it. Sa:It may be about a hard-working student. Sb:I think it may be about a famous person. T:Yes,maybe.Now read the passage as quickly as you can and to

11、check your guess.Meanwhile,try to get the main idea of each paragraph.several minutes later T:Lets see if your prediction is right.What is the text about.Ss:A famous scientistYuan Longping. T:Yes,you are quite right.Can you give us the main idea of each paragraph？Encourage some student to tell about

12、 his or her idea. Main idea of each paragraph: Paragraph 1:Yuan Longping is a leading figure on the rice-growing world.Paragraph 2:As a boy,he was called “the student who asked questions”.Paragraph 3:As a young teacher,he began experiments in crop breeding.Paragraph 4:He discovered a new type of ric

13、e. Paragraph 5:His discoveries have brought in great profit.4 / 13 Paragraph 6:The yield of the new hybrid rice is much greater than that of other types of rice grown in Pakistan.Step 3 Careful reading T:Read the passage again and underline the new words.After that,we ll do some other exercises.Afte

14、r a whileLook at the words on Page 33 in Activity 3.Match the words in the box with the definitions.agriculture breakthrough breed crop feed producer publishspecies support 1.plants people grow for food 2.a very important discovery 3.to produce new plants or animals 4.to give help 5.to give food to

15、6.to make information known,for example,in a report or a book 7.someone who makes things or grows food 8.a type of plant or animal 9.the science of farming First,read through the words in the box and have the students repeat them chorally and individually.Pay attention to those words where the stres

16、s is not on the first syllable,such as agriculture producer,support.Then ask them to complete the activity individually and check with their partners.At last,call back the answers from the whole class,having one student read the definition and another give the correct word.Suggested answers: 1.crop

17、2.breakthrough 3.breed 4.support 5.feed 6.publish 7.producer 8.species 9.agriculture5 / 13 T:So much for Activity 3,now lets come to Activity 4.We ll do another word exercise.Choose the correct meaning of the words in italics.1.A staple food is one you eat_.ararely bregularly 2.If you cross two plan

18、ts you_.awalk past them bproduce a new plant 3.A yield refers to_.aquantityeg of food bqualityeg of food 4.A sterile plant is a plant which doesn t_. agrow quickly bproduce seeds 5.A hybrid is a plant which comes from_.aone plant btwo different plants Ask the students to complete the activity indivi

19、dually,then collect the answers from the whole class as complete sentences.Suggested answers: 1.b2.b3.a4.b5.b T:Everyone of you did a good job.I think you have had a better understanding of the passage,now we ll do some TrueTor FalseFquestions.1.China produces more rice than any other country. 2.Yua

20、n Longping asked a lot of questions at school. 3.He developed a new kind of fast-growing rice. 4.The government helped him in his research. 5.The new rice replaced vegetables in 50 thousand square kilometers. 6.The new rice is now grown in other countries,such as Pakistan. T:After you finish your qu

21、estions individually,check them with their partners.If you have different answers,try to find adequate evidence from the text.Check the answers one by one.If the statement is false,try to ask the students to correct it.6 / 13 Suggested answers: 1.T 2.T 3.T 4.T 5.F 6.T The correct statement for No.5:

22、50 thousand square kilometers of rice fields were converted to growing vegetables and other cash crops. Ask the students to think of a different title for the passage.If you like,write down their titles on the blackboard and ask the students to vote on which one they think is the best.Step 4 Consoli

23、dation T:Now we have got a better understanding of the text.Lets see whether you have master the content of the passage.Try to fill in the blanks to finish the whole passage.Show the following on the screen. Yuan Longping is a 1 figure in the rice-growing world.He was born and 2 in China.As a boy he

24、 was educated in many schools and interested in plants,so he was given the 3“the student who asks questions”.As a young teacher,he began experiments in crop 4 .He thought there was only one way to have more rice quickly.That was to cross different 5 of rice plant.Then he began to search for a specia

25、l type of rice plant.Finally,a naturally 6 male rice plant was discovered in 1970.This was a 7 .As a result of his discovery,Chinas rice production rose 8 47.5%in the 1990s.And 50 thousand square kilometres of rice fields were 9 to growing vegetables and other cash crops.Following this,the new hybri

26、d rice was 10 to other countries. Suggested answers: 1.leading2.brought up3.nickname4.breeding5.species6.sterile7.breakthrough 8.by9.converted10.exportedStep 5 Summary and homework T:In this period we have learned the story of the famous scientistYuan Longping.He was hard-working and was called a st

27、udent who asked 7 / 13 questions.After years of hard work,he invented the hybrid rice,making a great contribution to China and the world.We also learned some vocabulary and please try to keep them in mind after class.While learning the text,learn from them and try our best to do what we can to serve

28、 our country.Your homework today is to read the text again after class and try to memorize the new words,expressions and some important structures in this period.Meanwhile,find some more knowledge about Yuan Longping on the Internet.The Design of the Writing on the Blackboard Module 4 Great Scientis

29、ts The second period stapleyieldsterile hybridbreedspecies Record after Teaching _ _ _ _ _ _ Activities and Research 1.Find out more information about Yuan Longping on the Internet or in a library.8 / 13 2.Tell the story of Yuan Longping to each other. Reference for Teaching Language Points 1.figure

30、 n. 图表;肖像;数字;身材 vt. 运算出 In the rice-growing world,the Chinese scientist,Yuan Longping,is a leading figure.figure out 运算出 ;想出;弄明白 figure on 方案;盼望 figure up 总计;把 总数加起来 make a little figure 出丑;露出可怜相 keep ones figure 保持体态苗条 public figure 名人;知名人士 That figure.不出所料 . I can t figure out why he quit his job.

31、 我捉摸不透他为什么要辞掉 工作；Please add up the figures.请把这些数字加起来；He is a key figure.他是个关键人物；She has a good figure.她身材好；2.bring up 培育;提出 Yuan Longping was born and brought up in China. 袁隆平在中国诞生并长大；He was brought up by his grandparents in the country.9 / 13 他由爷爷奶奶在农村抚养长大；At the meeting they will bring up many pro

32、blems and discussed them one by one.在会议上他们提出了许多问题bring about 带来;造成 bring down 使倒下 ;使崩溃bring forth 引起;产生 bring forward 呈上;提出bring in 赚入;引进 bring on 使显现 ;提高 bring out 揭示;出版 例如: ,并且一个一个地进行了争论；What brought about the change in his attitude. 是什么使他转变了态度？They ll bring the date of their marriage forward from

33、 the 30th to the 28th.他们将把结婚的日期从30 号提前到 28 号；How much did the sideline bring the farmer family in last year. 去年副业使这家农户增加了多少收入 . A crisis brings out the best in her. 危机促使她表现得更杰出；Study should bring on your maths. 学习会提高你的数学水平；10 / 13 3.by prep. 以 ,借助于 ,用 I improved my English by speaking more. 我通过多说提高了英语；She earned money by writing. 她靠写作挣钱；We went by air. 我们乘飞机走；by and by 不久;by accidentchance偶然； by no means 绝不,一点 也不; by oneself 单独;独自的 4.result n. 结果,成效 v.发生;导致 The result of the game was five-nothing. 竞赛结果是五比零；If the police leave,disorder will re