高中英语选择性必修二 Unit1 Period 2 Build up your vocabulary教案

1、新人教版（2019）英语选修性必修二Unit 1 Science and scientists Period 2 Build up your vocabulary教学设计课题 Period 2 Build up your vocabulary单元Unit 1 学科English年级Grade 2教材分析This is the second period of this unit. The emphasis of this period will be placed on the important words, expressions and sentence patterns in the

2、reading text. In order to make students understand these points, teacher can first get students to study the usages themselves and try to make a summary according to the examples, and then try to put them into use to improve the ability to use them in a real situation. At last under the guidance of

3、the teacher,students can make use of what they have learned as much as possible to express themselves. By doing so, students can grasp these important language points well.教学目标与核心素养Knowledge objectives: Learn some prefixes or suffixes and enable the Ss to master the usage of the key words and expres

4、sions in this unit.Skill objectives: Enable the Ss to use the sentence patterns flexibly.Emotional objectives: The students can refine the greatness of achievement and will be better at writing and speaking. 重点frustrated;infect;contradictory;initialsubscribe to; suspect of; link to; draw a conclusio

5、n ;make senseSb. Be to blame for sth.难点How to train the Ss to apply some structures correctly by doing the relevant exercises.教学过程教学环节教师活动学生活动设计意图导入新课Step1 leading inUse ppt to show a long word and guide them like this:Look at the following word and guess what is the meaning of it.2. Point out the w

6、ord formation and give the related prefixes and suffixes .Give a complex word and ask students to guess the meaning of it and observe the formation.To check whether students to find out the prefixes or suffixes and guide students to the study of word formation.复习词汇衔接新课Dealing with PPT 4-10Look at th

7、e following words and find out their regulation.-form-: reform;preform,inform;uniform;transformprefix 前缀:re-=again;pre-=completely;in-=into;uni-=single;trans-=changed2.Give the Chinese meaning of the underlined words.1.Studies have shown that when exercise is performed in groups,its not only great f

8、or improving physical health but for psychological health. 2.School reform efforts during the 19th century have reduced the amount of time adolescents spend with younger children.3. Since then,the society has moved onward,never looking back ,as the car transformed America from a farm-based society i

9、nto an industrial power. 4.As in so many offices that you see,the walls and furniture are a uniform gray. 答案：进行；改革；改变；同一的3.-view-：review;preview;interview;interviewer;intervieweeprefix 前缀:re-=again;pre-=completely;inter-=between; from one to anothersuffix 后缀 :-er= the originator of an action-ee =the

10、 recipient of the action4.Fill in the blanks with the words related to“view”.1. The manager had been the previous year on his way home. 2.Weve a woman for the job already,but she wasnt very well qualified. 3.Journalists will be invited to the exhibition tomorrow before its open to the public. 4. The

11、 gets to see more of the candidate by asking some predesigned questions. 5.The can get a chance to show his confidence,working ability and educational background. 答案：reviewing; interviewed; preview; interviewer;interviewee1.Ask students to have a brainstorm first,then write down the each word . And

12、next, learn each prefixs meaning.Practise the related words and answer the Questions individually.讲授新课Learn about word formation and Deal with PPT 11-141.Use ppt to show some other prefixes or suffixes : prefixesdis-不，否定，相反micro-极小的，微小的mis-错误的，坏的；不；相反un-不；表示相反的动作multi-多于一的；多的Suffixes-ory不，否定，相反-ion极

13、小的，微小的-ial 与有关的，有特性的-ology 表示学科,学问-al 的动作，的过程-or的物，用于做的物-ist专业人员，专家；主义者2.Find the words from the previous pages with the following prefixes or suffixes. Then add two words for each prefix or suffix.Prefix suffixre- retellrecycle -ory theory contradictorydis- disappoint dislike -ion actioninventionmi

14、cro- microsoft microphone -ialbeneficial officialtrans- transform transport -ology biologygeologymis- misunderstand misleading -al naturalactualun- unlikeunhappy -oractor inventormulti- multiple multinational -istbiologistscientistLearn some important words and phrases anddealing with PPT 15-233. Ma

15、ke phrases by combining the words in the left box with those on the right.Then complete the sentences using these phrases.subscribe suspect blame link to,of,for 1. Many scientists _the view that it is human activity that has caused global warming.subscribe :to pay money, usually once a year, to have

16、 copies of a newspaper or magazine sent to you 【记忆】sub 下 + scrib 写 + e 在单子下面写上名字 订阅；认购2.He was to_ the accident because he drove on the wrong side of the road. blame :to think or say that sb./sth. is responsible for sth. bad 【常见搭配】：be to blame 炎热的天气是缺水的原因之一。The hot weather partly for the water short

17、age.3 The man _being behind the robbery was seen crossing the street.suspect :v. to think that something is probably true, especially something bad 怀疑 to think that something is not honest or true 不信任 n. someone who is thought to be guilty of a crime 犯罪嫌疑人【例句】I suspected that there was something wro

18、ng with the engine.我怀疑发动机出了什么故障。I began to suspect his motives in inviting me.我开始怀疑他邀请我的动机。Two suspects were arrested today in connection with the robbery.有两名与劫案有关的嫌疑人今天被逮捕。【常用搭配】suspect sb. of sth.He was suspected of treason.他有叛国嫌疑。4.Since heart disease is often_ our lifestyle choices, we need to m

19、ake healthy living an important part of our lives.link : v. make a logical or causal connection; connect, fasten, or put together two or more pieces连接；联合，结合 n. the means of connection between things linked in series联系，关系答案：subscribe to；blame for； suspected of ；linked to 4.Replace the underlined part

20、s with suitable words from the box.raw; a household name ;substantial; statistics; handle1. It is not unusual for an athlete to be well known while he is active, and quickly forgotten when his athletic career is over.2. Im sure shell deal with the changes very well because shes very adaptable.3. He

21、was ready to serve dinner to his friends when he realized that he had forgotten to turn on the oven and the meat was not cooked yet.4. He used his great influence to change the thinking of the scientific community on this issue.5. Scientists have collected more data than expected to prove the theory

22、.答案：a household name ;handle;raw;substantial;statistics5. Read this passage about medical science. Complete it using the words below.infection multiple decrease severe transform proof blame substantial British scientists believe they may have found a way to fight the common cold. It blocks a key pro

23、tein in the body cells that is to _ for the spread of cold-causing virus. Targeting he host rather than _was a bit non-traditional but made sense because it was tricky to target the virus. Cold-causing virus are not only of _kinds, they also _ rapidly, meaning they can quickly develop resistance to

24、medicine. Researchers are working on making a form of medicine that can be taken directly into ones lungs, to_ the chance of side effects. Though these scientists have made _ advances in their research, further_ is needed to make sure such drugs are not so_ that they harm the body. 答案：blame,infectio

25、n,multiple,transform ,decrease,substantial,proof,severeLet students use what they have learned above to guess the word formation.Students can do it individually or in groups.While doing the exercises, students can play a game to see who can or which group can give as many correct words or answers as

26、 possible.Have a thorough understanding of the meaning and usage of words and be able to give correct answers.To check the ability of guessing words meaning To train students team spirits.Collaborative inquiry learningUse vocabulary, master vocabulary and expand vocabulary usage.Use the text materia

27、ls to guide the students to try the relevant questions of the college entrance examination, and make efforts in daily life to gradually cultivate their pragmatic ability.课堂练习Words extension1. frustrate v.挫败;阻挠;adj.挫败的;沮丧的frustration n.懊丧;令人懊丧的事物 with frustration恼火地2. infect v.使感染;使传染infection n.感染;传

28、染severe inflections严重的感染3 contradictory adj.相矛盾的;对立的contradict v.相矛盾contradictory statements相互矛盾的陈述4. initial adj.开始的,最初的initially adv.开始地,最初initial reaction最初的反应Phrases extension1.多亏 thanks to2.最终once and for all3同意,订阅 subscribe to4.最重要的是 above all5.爆发break out6.主观;负责 in charge of7得出结论 draw a concl

29、usion8.总之in general9.结果是 as a result10.死于 die from11.弄清;查明 find out12.处理 deal with13.执行carry out14.有意义make senseFill in the blanks with proper form of the phrases.1. We _ that the disaster was to end.2. It was all a great success a lot of hard work. 3. On the face of it that seems to . But the figur

30、es dont add up. 4. , a plain carpet makes a room look bigger.5. He has some unfinished business to . 6. Send it to whoever is sales.7. _, we consider him as all-around student at the end of the semester.8. More than half of all smokers _ a tobacco-related disease.9. They interviewed the victim to _

31、the truth.10.Every morning I would in a sweat.答案：drew a conclusion;thanks to;make sense;In general;deal with;in charge of,As a result;dies from;find out;break out课堂活动Activity1 Write down the word that matches each definition. adj. twostatements,beliefs etc that are contradictory are different and th

32、erefore cannot both be true orcorrect 【语法填空】Though her version her daughters, she believed that freedom and discipline are not each other. n. theactof becominginvolvedin anargument,fight, or other difficultsituationin order to change whathappens【语法填空】The situation calmed down when police .That is,th

33、e two men would have continued fighting but for the of a policeman. n. all the people who live together in one house ;adj. relating to looking after a house and the people in it 【语法填空】A growing number of offer at least one computer to the renters.If a is interested, youll get an interview, probably

34、by phone. v. to throw sb./sth. somewhere, especially using force 【语法填空】用cast的词组填空She cast her thoughts to the voyage on the sea, when the ship was cast during the storm.The priceless treasures had been cast into the Nile. vi. & vt. to do something in order to protect someone or something from being

35、attacked【语法填空】His courage in his homeland inspired many residents，and we would not abandon our of the city. n. a person who helps or supports sb, usually in their job【语法填空】Ms. Li is a good _，whose _ benefits us a lot，and she is _ us in making chemical experiments in the lab now. Activity 2 Group work: Use the words in Activ