必修三第二单元知识点.docx

1、必修三第二单元知识点Unit Two Healthy eating1、Do you eat a healthy diet? 你吃的健康吗？ diet 日常饮食 A balanced diet is necessary for good health. 平衡的饮食对身体健康很有必要。 Chinese diet is high in fiber. 中餐富含纤维。 易混辨析： diet和food diet既可指习惯上吃的食物，又可指规定的食物。特指维持健康的食物。 food是一般用语，指进入身体供人或动物生长的食物。强调种类时为复数名词。 联想扩展： go on a diet = be on a d

2、iet 节食 You please have lunch yourself, I am on a diet. 你自己吃午饭，我在节食。2、By now his restaurant ought to be full of people. 到这个时候他饭店宾客盈门的。 ought to 用法归纳： （1）（按理）应该 He ought to be here by now. 他这会儿应该到了。 It ought to be very cold in December in Xian. 西安12月应该很冷了。 （2）（建议）应该 You ought to study hard. 你应该努力学习。 S

3、chools ought to supply good books for students. 学校应该为学生提供好书。 （3）ought to have done = should have done 过去应该做而未做 You ought to have studied hard in the past three years. 过去三年你应该好好学习来着。 即时活用： 1、-There is a lot of smoke coming out of the teaching building.-Really? It _be a fire, most probably.A. can B. o

4、ught to C. have to D. must 答案：B 2、_ the old building still stand there after so many years? A. Must B. May C. Can D. Ought to 答案：C3、He thought of his mutton, beef and bacon cooked in the hottest, finest oil. 他想到了他用最热的，最好的油烹制出的羊肉、牛排和熏肉。 think of 用法归纳： （1）想起；记起 Sorry, I didnt think of your name just n

5、ow. 对不起，我刚才没想起你的名字。 We should think of some excuses. 我们应该找一些借口。 （2）考虑 We should think of the matter carefully. 我们应该认真考虑这个问题。 Please think of what I have said. 考虑一下我所说的。 （3）为着想 Chen Guangbiao is always thinking of the poor people in the poor areas. 陈光标总是想着贫穷地区的穷人。 Dont trust him, he only thinks of hi

6、mself. 别相信他，他只为自己着想。 （4）想；打算 I am thinking of giving up smoking. 我打算戒烟。 Is there anyone thinking of going out to play basketball with me? 有人想和我出去打篮球吗？ 联想扩展： think about想；考虑 think much of 对评价很高 think highly / well of 高度评价 think badly / little of 认为不好 think nothing of 觉得不怎么样 think out 想出；想清楚 think ove

7、r 仔细考虑 即时活用： How long have you worked in this library? -Two years, but Im thinking _.A. to stop B. of stop C. to stopping D. of stopping 答案：D4、Something terrible must have happened if Li Chang was not coming to eat in his restaurant as he always did. 如果李昌不像平常那样来他的饭店吃饭肯定是发生了什么可怕的事情。 情态动词表示猜测 情态动词、表示意

8、义及猜测的概率 must 一定；肯定 100% may 可能 50%-60% might 也许 20%-30% should 按理应该 can / could 可能 特别提示： must, may, might, should 用于肯定猜测；can / could用于否定和疑问猜测。 用法归纳： （1）表示对现在情况的猜测，用“情态动词+动词原形” He must be in the classroom. 他一定在教室。 She may have a spare pen. 她也许有一支多余的钢笔。 （2）表示对过去情况的猜测，用“情态动词 + have +过去分词” The ground is

9、 wet, it might have rained last night. 地是湿的，昨晚可能下雨了。 They must have finished their homework. 他们一定把作业做完了。 特别提示： 注意情态动词表示猜测句的反义疑问句。 （1）表示对现在情况的猜测的句子，不能用情态动词反问。 （2）表示对过去情况的猜测的句子，如果句子中有表示过去的时间，用过去式反问；如果句子中没有表示过去的时间，用完成时反问。 He must be in the classroom，isnt he? 他一定在教室,是吗？ She may have a spare pen, doesnt

10、she? 她也许有一支多余的钢笔，是吗？ The ground is wet, it might have rained last night, didnt it? 地是湿的，昨晚可能下雨了，是吗？ They must have finished their homework, havent they? 他们一定把作业做完了，是吗？ should 表示“按理应该”。看下面一道高考题 -When shall I come for the photos? I need them this afternoon. -They _ be ready by 12. A. must B. can C. sh

11、ould D. can 答案：C can / could 用于疑问句表示“可能吗”；用于否定句表示“不可能”。 -Look, someone is coming, who can it be ? 看，有人来了，可能是谁呢？ -It must be the headmaster. 肯定是校长。 -It cant be him. He has gone to Xian. 不可能是他，他去西安了。 即时活用： 1、He_ without saying goodbye to them, for he always has good manners. A. mustnt have left B. may

12、 not leave C. shouldnt have left D. cant have left 答案：D 2、The classroom was empty. I think they _ to the playground to do morning exercises.A. must have gone B. ought to have gone C. should have done D. can have done 答案：A 3、-We werent sure which way to go. In the end we turned right. -You _ the wron

13、g way. You _ left. A. had gone; must have turned B. went; must turn C. have gone; would have turned D. went; should have turned 答案：D 4、You must have been caught in the rain yesterday, _ you? A. mustnt B. havent C. didnt D. werent 答案：C 5、When I suggested that someone in the village _ his wine, he did

14、nt believe.A. must have drunk B. should drink C. have drunk D. has drunk 答案：A 6、He must be the person who has been late a third time this week, _?A. isnt he B. hasnt he C. mustnt he D. must he 答案：A 7、 Is Bush over his cold yet? - He _. He went ice-skating yesterday.A. must be B. ought to C. will be

15、D. has to 答案：A 8、 Has your brother got up? - Sorry, Im not sure. He _got up.A. must have B. cant have C. would have D. might have 答案：D5、Tired of all that fat? Want to lose weight? 肥腻的东西吃厌了吗？想变瘦吗？ be tired of 对厌倦；厌烦 I am tired of learning English. 我烦学英语。 We are tired of the same breakfast every morning. 我们厌烦每天早上吃同样的早餐。 易混辨析： be tired of 对厌倦；厌烦 be tired from / with 由于而疲惫 We are tired from the long running. 由于长跑我