情态动词have

1、Unit 1 Can you come to my party?Section A Period 23a Fill in the blanks.Lisa: Hi, Simon, _ you come to my _?Simon: _ is it?Lisa: Its _ at _.Simon: Great! Id love to!birthday partyWhenJune 30four-thirtycan Ask your friends to come to your Birthday Party .InvitationIts a birthday Party!From whom: Jack

2、Time: This Sunday, at 7:00Place: Jacks house, 56 Zhongshan RoadCome and join us.Explanation 1. 情态动词情态动词“have to”与其他的情态动与其他的情态动词如：词如：“can” , “may” “must”和和 “should” 不同。不同。 （1）这）这4个情态动词没有人称的变化个情态动词没有人称的变化,而而have to有。它的第三人称单数为有。它的第三人称单数为“has to” 如：如： He should study hard. 他应该好好学习。他应该好好学习。 He has to stu

3、dy hard. 他不得不好好学习。他不得不好好学习。（2）这）这4个情态动词在一般疑问句中个情态动词在一般疑问句中将它们放在句首将它们放在句首, 在否定句中直接在他在否定句中直接在他们后边加们后边加not即可。即可。 我们以我们以can为例为例: Can he go with us ? 他能和我们一起去吗？他能和我们一起去吗？ He cant go with us . 他不能和我们一起去。他不能和我们一起去。 而而“have to”要加助动词要加助动词do , does或或 did才可能完成其疑问、否定句。才可能完成其疑问、否定句。 试将下面三种话分别写成试将下面三种话分别写成 （1）一般疑

4、问句，并做肯定回答。）一般疑问句，并做肯定回答。 （2）否定句。）否定句。 1: They have to go to the party . Do they have to go to the party ? Yes , they do . They dont have to go to the party. 2. He has to go to see the doctor . Does he have to go to see the doctor? Yes , he does . He doesnt have to go to see the doctor . 3. She had t

5、o have a piano lesson yesterday. Did she have to have a piano lesson yesterday? Yes, she did . She didnt have to have a piano lesson yesterday.2. I have to help my parents . 我不得不帮助我的父母。我不得不帮助我的父母。 help sb. with sth .或或help sb (to) do sth . 上一句我们可以说：上一句我们可以说： I have to help my parents with the housew

6、ork . 或说或说I have to help my parents (to) do the housework .3.Thats too bad . Maybe another time . 太糟了，也许换个时间吧。太糟了，也许换个时间吧。 或或Maybe next time . 也许下一次吧。也许下一次吧。1. The children are having a music l_. 2. The apple is so delicious. Can I have a_ one?3. Mr Green is going fishing the day after t_ .I. 请根据句意及

7、首字母提示完成下列句请根据句意及首字母提示完成下列句子及对话。子及对话。essonnotheromorrow 4. Can you go to the c_ tonight? There will be lots of nice music. 5. Can you go out at night on w_? No. But I can go out at night on weekends. oncerteekdays .请用括号中所给动词的适当形式完请用括号中所给动词的适当形式完成下列句子。成下列句子。1. Do I have to _ (help) my mom with housewo

8、rk, Dad?2. Im sorry I cant _ (go) to your birthday party.helpgo3. Thank you for_ (invite) me to your house on Friday.4. What are you _ (do) on Tuesday afternoon?5. Can you help me _ (babysit) your sister, Linda?invitingdoing(to) babysit. 请根据汉语提示完成下列句子，每请根据汉语提示完成下列句子，每空一词。空一词。1. Well have _ (太多的太多的) homework this weekend.2. The students usually _ (上钢琴课上钢琴课) on Thursday. too muchhave a piano lesson3. I have to _ (为为学习学习) the math test at home. 4. Mrs Brown is going to the movies _ (在星期六下在星期六下 午午). 5. Ben has to _ (去去 看医看医 生生) with his mother.study for on Satu