云南省陇川县第一中学高一英语《Unit2 Healthy eating》教学设计（二）.doc

云南省陇川县第一中学高一英语unit2 healthy eating教学设计（一）grammar (learning about language and using language)一、teaching content 1. make suggestions or giving advice on diet. 2. distinguish the meanings of modal verbs.二、important words and phrases1. consult vt. 咨询，请教；商量；查阅 consult sb. 向某人咨询 consult with sb. 与某人商量 consult on/about 就.向某人请教、询问 eg. i have to consult the teacher about the problem.2. earn ones living 谋生 eg. i earned my living from teaching. earn ones living=make ones living earn money = make money earn ones praise 受到某人的表扬3. in debt 负债，欠债 be in ones debt 欠某人的情 eg. i am in my parents debt.4. spy on 暗中监视，侦查 eg. from the little hole in the back door he could spy on the whole class.5. limit vt. 限制，限定 n. 界限，限度 a limit to .是有限度的 limit.to 限制.到. set strict limits on 对.作严格限制 push/test sb./sth. to the limit 推、考查某人或某物达到限度6. benefit from 从受益get benefit from/by (因)得到利益，受益for the benefit of / for ones benefit 为了的利益 eg. we benefit from our teachers.7. combine with 和.联合 combine to do sth. 联合做某事 eg. steel is produced by combining iron with carbon.8. cut down 削减；删节 cut in 插嘴 cut off 切断，中断，隔绝 cut up 切碎，割碎 cut down 砍倒 cut out 戒掉，改掉9. before long 不久以后 long before 很久以前 it be long before. 没过多久，才. eg. we will meet again before long. it will be long before i see you.三、some useful expressions（finish the sentences）6用心 爱心 专心1. suggestions and advicewhat should we do? shall we.? how about? you must/mustnt. i think you ought to. perhaps you should. youd better. you might. you need/neednt. you have to/ dont have to. i would strongly advise you to. i suggest that you my advice is/would be it might be a good idea to 2. seeing the doctor whats the matter? whats wrong with you? what seems to be the trouble? how long have you been like this? its nothing serious, only. i suppose you had better. i think you ought to. ive got a pain in. it comes and goes. im suffering from i feel tired all the time. ive got a bad. it hurts when i touch it.3. agreement and disagreement yes, i think so. i dont think so. i agree. i dont agree. thats correct. thats exactly my opinion. youre quite right.i dont think you are right. i quite agree with you. im afraid i dont agree / disagree with you. of course not. im afraid not. all right.thats a good idea. certainly. / sure. no problem.四、grammar pointsstep 1 observationought to, have to, mustnt，neednt寻规找矩 观察下列三组句子，注意情态动词ought to， have to， mustnt和neednt的不同用法。1. ought to1) you oughtnt to make private phone calls in work time.在工作时间你不应该打私人电话。2) he ought to be there by now.他现在应该到那儿了。3) ought i to write to apologize to her？我应该向她写信道歉吗？4) they ought to come tomorrow, oughtnt they (= shouldnt they)? 他们应该明天来，是吗？2. have to1) my brother was very ill, so i had to call the doctor in the middle of the night.我弟弟病得很厉害，我只得半夜里把医生请来。2) must i finish the task right now？我现在必须完成这项任务吗？ yes, you must. / yes, you have to. 是的，你必须。（no, you neednt / no, you dont have to. 不，不必。）3) you dont have to tell him about it.你不必把此事告诉他。4) do you have to go now. 你现在就得去吗？yes, i do. 是的，我必须去。3. mustnt与neednt1) smoking must not be allowed in the office.严禁在办公室吸烟。2) must we hand in our exercises today?我们今天必须交作业吗？yes, you must. 是的，必须交。（no, you neednt (you dont have to).不，不必今天交。）3) it must be that naughty boy crying outside.肯定是那个调皮的孩子在外面大叫。it cant be him, because he has gone to school.不可能是他，因为他已经去上学了。4) there are still one and a half hours to go. we neednt be in such a hurry. 还有一个半小时，我们不必如此慌慌张张。step2 summarize通过观察分析以上几组例句，我们可以对ought to, have to, mustnt和neednt的用法归纳如下：1. ought to 意为“应当；应该”，一般可与should互换，但ought to语气更强，且多与责任、义务相关。如例1、4。否定式是ought not to或oughtnt to。如例1；可以表示猜测。如例2；疑问式是将ought提前。如例3；在变为反意疑问句时，疑问部分用ought或should。如例4。2. have to 表示一种客观的需要，意思是“不得不”。 如例1； 有人称、数和时态的变化。如例1; 否定形式是dont / doesnt / didnt have to，相当于neednt。如例2、3; 疑问式是在其前面用助动词do / does / did。如例4。3. mustnt 与neednt mustnt表示禁止。如例1； 用must提问时的否定回答须用neednt / dont have to。如例2； mustnt与dont have to的意思大不相同，前者表示“禁止”，意思是“一定不能”；后者表示“没有必要”，意思是“不必”，相当于neednt。如例2； must常用于肯定句中表示猜测、推测，意为“一定”；表示“不可能”时要用cant。如例3； need用于否定句和疑问句中意为“必要”。如例4。step 3 practice一、选择正确的答案。1. i lived with my sister this summer and didnt have to pay rent. so i _ save most of my salary. a. was able to b. would c. could d. should2. i promised to get there before 5 oclock, but now the traffic is still so heavy. they _ for me impatiently. a. may wait b. must be waiting c. could wait d. ought to wait3. i _ her, but i never could. a. ought to help b. must help c. must have helped d. ought to have helped 4. the smiths went to the country for the weekend as they _ to the office. a. neednt have gone b. mustnt go c. may not go d. didnt have to go5. my parents never remember my telephone number, and they always _ look it up. a. should b. can c. have tod. must6. bobby _ me your secret, but he meant no harm. a. shouldnt have told b. should tell c. mustnt have told d. could tell 7. if you _ go, at least wait until the rain stops. a. can b. must c. should d. would8. you _ follow me if i am wrong. a. must b. dont have to c. wouldnt d. ought to 9. _ you like to have a walk with us this evening? a. could b. willc. wouldd. can10. mr wang, i will go and fetch four chairs for the meeting. you _ fetch four; two will do. a. wont b. couldnt c. shouldnt d. neednt key： 1-5 abddc 6-10 abbcd二、用以上情态动词的适当形式填空。1. one cross the street against the red light.2. his mother is ill, so he take care of her.3. i have to stay at home preparing my lessons.but you . tomorrow is sunday.4. mikes father is ill, but you tell him, because he is to take an important examination.key: 1. ought not to / mustnt2. has to3. neednt / dont have to 4. mustnt五、dictation spy