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首页 > 教案下载 > 英语教案 > 高中英语教案 > 高二英语教案 > Unit 2 Healthy eating(Period 3 Learning about language: Grammar)

Unit 2 Healthy eating(Period 3 Learning about language: Grammar)

发布时间:2019-08-20

他不可能让咏慧哄骗人们后跑掉。
9)he had better do some research.
他最好作一番调查。
10)they would become tired very quickly.
他们很快就会到疲乏。
11)perhaps with a discount and a new sign he could win his customers back.
或许打折的方法和新的招牌能够帮他赢回顾客。
2. thinking and discussing
let students read aloud the sentences they picked out, think over and discuss with a partner how each of these modal verbs is being used in the situations. use the function words below to explain the meaning of the modal verbs. if students have some difficulty, give them a hand.
intention duty permission possibility guessing ability
suggested answers:
1)possibility 2)possibility 3)possibility 4)possibility 5)guessing 6)intention 7)duty 8)intention 9)duty 10)possibility 11)ability
3. summing up: the use of ought to
ought to的用法
ought无人称和时态的变化, 后接带to的动词不定式。ought to可表示“义务”“要求”或“劝告”, 常译作“应该”“应当”等, 和should差不多, 只是语气稍重一些; 有时表示“非常可能”的意思。否定式为ought not to(oughtn’t to), 疑问式为ought i/you/. . . to. . . ?
1. 表示“责任或义务”
such things ought not to be allowed, ought they?
这类事情不应该被准许, 是吗?
—ought he to go? 他应该去吗?
—yes, he ought to. 是的, 他应该去。
2. 表示“适当, 合适或应该”
coffee ought to be drunk while it is hot.
咖啡应该趁热喝。
there ought to be more buses during the rush hours.
在上下班高峰期, 公共汽车应当多一些。
3. 表示“可能性”
harry ought to win this race.
哈里应该会赢得这场比赛。
if he started at seven, he ought to be here now.
假如他在七点出发的话, 现在大概到这儿了。
4. 表示“劝告或建议”
i think you ought to eat more body-building food.
我认为你应当多吃些有营养的食物。
he said i ought to do that job.
他说我适宜做那项工作。
5. 表示“推测”, 意为“照说应该; 想必一定”, 后跟不定式的一般时、进行时或完成时, 分别表示对现在、现在进行或过去情况的推测。
she has had working experience before. she ought to be fit for the job.
她以前有过工作经验, 应该胜任这项工作。
it’s just 9 o’clock. mary ought to be doing her homework in her room now.
才刚九点, 按说玛丽应该在房间里做作业。
it ought to have rained last night.
昨晚应该下过雨。
6. 表示“责备或后悔”
ought to后接不定式的完成式时, 表示“本应该做某事而事实上没做”; 其否定式表示“本不应该做某事而事实上做了”。
you ought to have done these exercises because you were required to so during your holidays.
这些练习你本应该做完的, 因为假期里就要求你做了。
she ought not to have told him the bad news, which had a bad effect on his examinations.
她本不应该告诉他这个不幸的消息, 结果影响了他的考试。
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