Unit 2 Healthy eating(Period 3 Learning about language: Grammar)
他不可能讓詠慧哄騙人們后跑掉。
9)he had better do some research.
他最好作一番調(diào)查。
10)they would become tired very quickly.
他們很快就會(huì)到疲乏。
11)perhaps with a discount and a new sign he could win his customers back.
或許打折的方法和新的招牌能夠幫他贏回顧客。
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無(wú)人稱(chēng)和時(shí)態(tài)的變化, 后接帶to的動(dòng)詞不定式。ought to可表示“義務(wù)”“要求”或“勸告”, 常譯作“應(yīng)該”“應(yīng)當(dāng)”等, 和should差不多, 只是語(yǔ)氣稍重一些; 有時(shí)表示“非常可能”的意思。否定式為ought not to(oughtn’t to), 疑問(wèn)式為ought i/you/. . . to. . . ?
1. 表示“責(zé)任或義務(wù)”
such things ought not to be allowed, ought they?
這類(lèi)事情不應(yīng)該被準(zhǔn)許, 是嗎？
—ought he to go? 他應(yīng)該去嗎？
—yes, he ought to. 是的, 他應(yīng)該去。
2. 表示“適當(dāng), 合適或應(yīng)該”
coffee ought to be drunk while it is hot.
咖啡應(yīng)該趁熱喝。
there ought to be more buses during the rush hours.
在上下班高峰期, 公共汽車(chē)應(yīng)當(dāng)多一些。
3. 表示“可能性”
harry ought to win this race.
哈里應(yīng)該會(huì)贏得這場(chǎng)比賽。
if he started at seven, he ought to be here now.
假如他在七點(diǎn)出發(fā)的話(huà), 現(xiàn)在大概到這兒了。
4. 表示“勸告或建議”
i think you ought to eat more body-building food.
我認(rèn)為你應(yīng)當(dāng)多吃些有營(yíng)養(yǎng)的食物。
he said i ought to do that job.
他說(shuō)我適宜做那項(xiàng)工作。
5. 表示“推測(cè)”, 意為“照說(shuō)應(yīng)該; 想必一定”, 后跟不定式的一般時(shí)、進(jìn)行時(shí)或完成時(shí), 分別表示對(duì)現(xiàn)在、現(xiàn)在進(jìn)行或過(guò)去情況的推測(cè)。
she has had working experience before. she ought to be fit for the job.
她以前有過(guò)工作經(jīng)驗(yàn), 應(yīng)該勝任這項(xiàng)工作。
it’s just 9 o’clock. mary ought to be doing her homework in her room now.
才剛九點(diǎn), 按說(shuō)瑪麗應(yīng)該在房間里做作業(yè)。
it ought to have rained last night.
昨晚應(yīng)該下過(guò)雨。
6. 表示“責(zé)備或后悔”
ought to后接不定式的完成式時(shí), 表示“本應(yīng)該做某事而事實(shí)上沒(méi)做”; 其否定式表示“本不應(yīng)該做某事而事實(shí)上做了”。
you ought to have done these exercises because you were required to so during your holidays.
這些練習(xí)你本應(yīng)該做完的, 因?yàn)榧倨诶锞鸵竽阕隽恕?br>she ought not to have told him the bad news, which had a bad effect on his examinations.
她本不應(yīng)該告訴他這個(gè)不幸的消息, 結(jié)果影響了他的考試。