1、1Unit 2 Keeping Healthy Topic 2 I must ask him to give up smoking.Section B一、学习目标 Aims and demands1. 掌握本部分重点词组和句型。2. 学会使用情态动词 must, must not，掌握祈使句句型。二、学法指导 How to study1. 认真阅读 Unit2 Topic2 SectionB，并对语言点、难点做出标记；2. 记本部分单词、学案所列出的词组和句型；3. 学习学案，并完成学案上的练习题；三、 自主预习 Preparation.英汉互译下列单词并标上词性。1.article_( )
2、2.smoke _( ) _( )3.litter _( ) _( ) 4.enough _( ) _( ) _( )5. 癌_ ( ) 6. 垃圾箱_( )7. 能量；精力_( ) 8.必需的，必要的 _( ). 在课本中找出下列短语划在书上并翻译1在阳光下读书_ 2对有害_3让某人做某事_ 4戒烟_5把某物出示给某人看_ / _6将垃圾丢入垃圾箱_7到处扔垃圾_ 8对必要_9保持活力_ 10在一天中_ / _ 11给某人某物_ / _. 翻译并熟记下列句子 .1 他认为吸烟可以放松自己。_2禁止践踏草坪。_3散步是项好运动，它对你的健康必不可少。_4不吃早餐上学对你的健康有害。_5多么可怕
3、啊！我一定要让他戒烟。_四、知识链接 Hot link1must 的用法我们平时说话总会用到“必须；必要；应该；一定”等字眼，其实，在英语中这些意思绝大多数由 must 一词来担当。说到这里，让我们一起对 must 来个彻底的了解吧。 (一)、must 的个性： must 拥有情态动词家族的共性：无人称和数的变化，也无时态变化。作谓语时一律用“must +动词原形”结构。 2(二)、must 的本领： （1）must 表示说话人的主观看法或愿望，认为“必须”做某事。例如： I _ _ hard. 我必须努力学习。 （2）表示要求某人必须做某事时，主语用其它人称 。例如： You must wa
4、it in line. 你必须排队等候。 （3）在肯定句中，must 可以表推测，语气要比 may 肯定得多。must 表示对某事把握很大的推测，只能用于肯定句，意为“想必；准是；很可能” ； must be 表示“必定无误” 。当表示对现在的情况进行推测时，must 后也接动词原形或动词的现在分词。当情态动词 may 与 be 连用，表示推测时，其肯定程度比 must 要小得多。在否定句型表示推测的含义时不用 mustnt 而用 cant。例如： She _ _our new Chinese teacher.她一定是我们的新的语文老师。The door is closed. He cant
5、be at home. 门关着，他一定不在家。 (三)、must 的变脸： （1）must 的否定式是在 must 后面加上 not，常缩写成 mustnt，意思是“决不可；千万不能；务必不要；禁止” 。在对 May I .?作否定回答时用 No， you mustnt / cant。例如： You _ tell her this news. 你绝不能（千万不要）告诉她这消息。 You _ _smoke her.e 你绝不能在这儿抽烟。（2）must 的疑问式是将 must 提在主语前。must 用在问句中作“必须”解，这时要注意肯定与否定回答时的用语。其肯定简略答语是 Yes，主语+ mus
6、t。若是否定回答，则是 No，主语+neednt 或 dont have to。例如： Must I finish my homework today? 今天我必须完成我的作业吗？ No，you _ / Yes， you_. 不必。/ 对，你必须完成。2. give up【课文原句】_.【导学点拨】give up 放弃，当后面接动词作宾语时，应用 v.-ing 形式。give up doing sth. =stop doing sth.e.g. You should stop _. =You should _ _ _. 你应该戒烟。3.throw litter around【课文原句】_.【导
7、学点拨】 throw around 意为“抛撒.” aroundt 在这里是副词，与 throw 一起构成动词短语。后接宾语如果是名词时放在副词前后都可，是代词时只可放在动词和副词之间。即 “名词两边，代词中间” 。e.g. Dont _ _ _.别乱扔它。Dont throw waste paper around= Dont throw around waste paper.不要到处扔废纸。4. be necessary for【课文原句】_.【导学点拨】be necessary for对于来说是必不可少的e.g. Sunshine _ _ _our life. 阳光对于我们的生活来说是必不
8、可少的。5. be good for【课文原句】_ _.【导学点拨】be good for 对好，有益。3e.g. Exercise _ _ _ our bodies. 运动对我们的身体有益.6. during the day【课文原句】_.【导学点拨】during the day 在一天中，相当于 in the daytime during prep.在期间 e.g. during the holidays 在假期里五、目标检测 PracticeI.根据句意及首字母提示填空。1. Eating fruit keeps us h_.2. Walking is n_ for good healt
9、h.3. K_ long fingernails is a bad habit.4. You mustnt t_ litter about. Youd better keep enviroment clean and tidy.5. He is very poor, he has not e_ food to eat.6.Chocolate gives you e_. But eating too much is bad for your teeth.7.He wrote an a_about Wang Xiaoya.8. S_up late is bad for your health.9.
10、 We should do more exercise to keep us h_.10.Many d_are caused by germs.II. 请你帮每个情态动词复位。1. She _speak English, but I cant.2. Helen _ swim when she was seven years old.3. _ I borrow your pen?4. We _ finish our homework today.5. You _ not eat between meals. It will make you fat.6. Tomorrow is a holida
11、y. _ you go to the office?7. They wouldt like to leave their team, but one of them will _do that.III. 单项选择( ) 1. He goes to work _ the day, and studies _ night.A. in; in B.at; at C.in; at D. at; in( ) 2.Li Lei, dont walk _the lawn.A. about B.at C.in D. on( ) 3. It is necessary _ us _ hands before or
12、 after meals.A.to; to wash B.for; for washing C.for; to wash D.to; for washing( ) 4.-Must we drink eight cups of water every day?- Yes, you _.A. may B.can C.need D.must( ) 5.Its a good habit _ do moring exercises.A.for B.to C.by D.inmay, need, can, must, have to, could, should4IV.完形填空David was a doc
13、tor. He spent 1 time in playing when he was in the medical college. Of course, he learned nothing. Later on he tried to find a 2 in the cities, but he failed. He 3 return to his hometown. It was 4 and there was only one hospital in it. He thought he knew much and looked down upon(瞧不起) his 5 . But so
14、on the patients found he was not a good doctor 6 few asked him to look them over. He knew but he didnt 7 .One day a traveler came into his office. The man caught a cold and wanted some 8 . David hoped to be paid more and looked over one of the travelers eyes 9 . “Oh dear!” called out David, “You hav
15、e a bad heart disease. You should be in hospital and only I can help you!” “Please 10 my right eye, sir,” said the traveler, “the left one is false(假的).”( ) 1. A. much B. a little C. no D. little( ) 2. A. doctor B. job C. hospital D. friend( ) 3. A. must B. should C. had to D. had better( )4. A. new
16、 B. big C. small D. beautiful( )5. A. parents B. patients C. friends D. workmates( )6. A. but B. and C. however D. because( )7. A. say B. fight C. believe D. mind( )8. A. money B. food C. drink D. medicine( ) 9. A. quickly B. carefully C. softly D. careful( )10. A. look at B. look for C. look after
17、D. look likeV. 阅读理解In China，more and more high school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night because they have much homework to do. Some homework is given (被给) by their teachers and some by their parents. Also, some students dont
18、know how to save(节约) time. They are not careful enough while(当时候 ) they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up very late. Some students have to get up early every morning from Monday to Friday to get to
19、 school on time by bus or by bike. It can be a long way to school.Schools and parents should cut down(减少) some of the homework so that(以便) the children can have more than nine hours of sleeping every night for their health. As we know，children are our countrys future. Everyone should take good care
20、of them. 根据短文内容，判断正(T)误(F)。( ) 1. Most students are getting longer sleeping time than before.( ) 2. Most students sleep more than ten hours because they have less homework to do.( ) 3. Some students are not so careful while they do their homework.( ) 4. Schools and parents should cut down some of the homework so that the students can play computer games.( ) 5. Children are the future of our country. We should take good care of 5them.六、反思与总结 Summary
