1、Healthy eating Unit 2 Section Learning about Language栏目导航 课堂深度拓展课后限时作业课末随堂演练 Point consult vt.咨询；请教；商量；查阅课堂深度拓展考点一 单词点击 consult sb.about sth.向某人咨询某事 consult(with)sb.(about/on sth.)(就某事)与某人商量However，as she was so afraid of being laughed at by her friends，she did not consult a doctor but lived on a di
2、et of rice，raw vegetables，bananas and lemons.(教材 P12)然而，因害怕被朋友们嘲笑，她没有向医生咨询，而是以米饭、生蔬菜、香蕉和柠檬为主食。Ill consult with my partners about this agreement.我要同我的合伙人商量这一协议。I have consulted a number of law books in our school library.我曾在我校图书馆里查阅过好些法律书籍。consultant n顾问 consultation n咨询，磋商 单句语法填空。(1)The students who
3、 are used to _(consult)a dictionary make a greater progress in English than those who do not.解析：句意：那些习惯于查词典的同学比那些不查词典的同学在英语方面取得的进步更大一些。(2)An increasing number of people are consulting him _ several security changes.解析：句意：越来越多的人在向他咨询若干关于安全保护措施变化的问题。consultingabout 情态动词()1had better的用法(1)had better为情态
4、动词，可缩写为d better，没有人称和数的变化，意为“最好”“还是好”，其后接不带to的不定式。表示现在或者将来“最好”，而不指过去。It occurred to me that we had better go and have a picnic outside.我突然想到我们最好到外面野炊。You had better write to your parents once a month.你最好每个月给你父母写一次信。考点二 短语诠释(2)had better的疑问形式通常是把had提前，放在句首。had better在陈述句中的否定形式同在疑问句中的形式是不同的。在陈述句中，bett
5、er放在not之前；在疑问句中，not可放在主语后和better前，也可放在had后和主语前。Had I better do my homework?我最好做作业吗？Youd better not play football in the street.你们最好别在街上踢足球。Hadnt you better give up smoking?你是不是最好把烟戒掉？2need与dare的用法(1)need作情态动词，表示“需要；必须，不得不”，无人称变化，多用于否定句、疑问句或含疑问词的从句中。句子是过去时时用had to，是将来时时用will/shall have to。You need no
6、t/neednt come today.今天你不必来。Why need you go today?你今天为什么一定要走？I asked him whether he need go.我问他是否不得不走。【注意】a.由need引出的一般疑问句，肯定回答常用must或have to；否定回答常用neednt。Need I answer the question?我需要回答那个问题吗？Yes，you must./Yes，you have to.是的，你必须回答。/是的，你得回答。No，you neednt.不，不必了。b由must引出的一般疑问句，肯定回答用must，否定回答用neednt或dont
7、 have to。Must I do the work now?我必须现在干这个活吗？Yes，you must.是的，你必须做。No，you neednt/dont have to.不，你不必。(2)dare用作情态动词，后跟动词原形，主要用于疑问句、否定句和条件句中。疑问句用：Dare he/they/you？否定句用darent。How dare she do things like that to me?她怎么敢对我做那种事？Dare you catch the mouse?你敢去抓那只老鼠吗？I darent do that.我不敢。If you dare say that to ou
8、r teacher，I would vote for you.如果你敢跟我们老师说那件事，我就投你一票。3ought to与ought not to(1)ought to表示“应该”，否定形式为“ought not to”；变为一般疑问句时，ought提前。(2)ought to have done相当于should have done，意为“本应做而实际没做”；ought not to have done相当于shouldnt have done，意为“本不应做而做了”。He left 2 hours ago so he ought to be there by now.他两小时前动身的，现
9、在该到那里了。You oughtnt to drive if you are feeling so tired.你要是觉得这么困的话就不该开车。【注意】should表示自己的主观看法，而ought to语气重，含有“按道理该”之意，如果要反映客观情况或涉及法律义务和规定时一般用ought to。4情态动词表示推测的用法情态动词使用场合对现在和未来事情的推测对过去事情的推测意思must肯定句must动词原形must have done一定，准是may/might肯定句、否定句may/might动词原形may/might have 可能，也许(could)动词原形d动()The story he
10、told us must be true.他告诉我们的故事一定是真的。It may(might)have rained during the night.夜间可能下雨了。The boy is honest.He cant tell lies/a lie.那个男孩儿很诚实，他不可能撒谎。It is nearly seven oclock.Jack should be here at any moment.快到七点钟了，杰克随时都可能到这儿。5“情态动词have done”的用法(1)must have done表示对过去已经发生的事情进行推测，只能用在肯定句中，意思是“想必，准是，一定做了某事”
11、。在否定句与疑问句中分别用cant和can。They were late.Something must have happened to them.他们来晚了，肯定发生了什么事情。The glasses are broken.It must have been done by the boy.玻璃杯碎了，肯定是这个男孩儿打碎的。Can you have informed her?你肯定你通知她了吗？He cant have lied to us，for he is very honest.他不可能对我们撒谎，因为他非常诚实。(2)may/might have done表示对过去已经发生的事情的
12、推测，意思是“也许/或许”，一般只能用在肯定句或否定句中，不能用于疑问句中。用might时语气更加不肯定。同时might have done也可以表示“本来某事可能发生，但实际上并没有发生”；还可以表示“本来应该或可以做某事”，含有轻微的责备语气。He may not have heard of the news.可能他还没有听说这个消息。She might have been hurt.她可能受到了伤害。They might have given you more help，but they were too busy.他们本应该给你更多的帮助，但是他们太忙了。You shouldnt ha
13、ve run in the street.You might have been knocked down.你不应该在街上跑，你可能会被撞倒的。(3)should/ought to have done用于肯定句，表示“本应该做某事，而事实上没有做”；用于否定句，表示“不该做的事情反而做了”。You should have done more exercise before.以前你应该多从事一些锻炼活动。We ought to have gone there by taxi.我们本应该打的到那里去的。(4)neednt have done表示“做了本来不必做的事”。注意didnt need to
14、 do表示“没必要做某事而实际上也没有做”。You neednt have told me the news.I have already known it.你本不必告诉我这个消息，我已经知道了。I didnt need to paint the chair.My father did it.我不必漆这把椅子。我父亲漆过了。(5)had better have done用于事后的建议，含有轻微责备的口吻，意思是“当时最好做了某事”，其否定形式为had better not have done。We had better have followed his advice.我们当时听取了他的建议就
15、最好了。You had better not have scolded her.你当时没有责备她就最好了。(6)would rather have done表示“当时宁愿做了某事”，其否定形式为would rather not have done，两者表示相反的含义，都表示“后悔”的意思。I would rather have called on him last week.我宁愿上周去拜访他了。I was angry with her then，but now I would rather not have done that.我当时很生她的气，但是现在我希望没有那样做。(7)could have done用于肯定句，表示“可能已经”，此外，还可以表示过去没有实现的可能性，意思是“本来可以但是”。You could have done it well，but you were too careless.你本来可以做好它，但是你太马虎了。课末随堂演练课后限时作业制作者：状元桥适用对象：高一学生制作软件：Powerpoint2003、Photoshop cs3运行环境：WindowsXP以上操作系统