must_、have_to_区别及专项练习(最新整理)

1、must 与 have to 的区别情态动词 must 和 have to 都有“必须”的含义，它们的用法如下：（一）、 must “必须”、“应该”的用法:1.must 表示“必须”、“应该”。例如：we must protect our environment.(我们必须保护环境。）everyone must obey the rule.（人人必须遵守制度。）2. must 的否定形式 must not 表示“不应该”、“禁止”、“不准”。语气比较强烈。例如：you mustnt speak like that.(你不应该像那样讲话。）you mustnt be late for scho

2、ol.（你不应该上学迟到。）3. 在回答 must 的问句时，肯定形式用 must 来回答，但否定形式用 neednt 或 dont have to 来回答。而不用 mustnt 来回答。例如：must i be home before 8 oclock?(8 点之前我必须回家吗？)yes, you must.no, you neednt./no, you dont have to.（是，你必须。）（不，你不必。）（二）、have to 表示“必须”、“不得不”，例如：he has to stay in bed for 3 or 4 days.(他必须卧床休息三四天。）we will have

3、 to get up early tomorrow.（明天我们必须早起。）补充：have got to 是 have to 的口语形式。例如：ive got to leave for nanjing.(我不得不去南京。)*must 与 have to 的区别：must 表示的是说话人的主观看法，而 have to 则表示的是客观需要。must 一般只有现在时， 而 have to 有更多的形式。i must go now.(主观看法) my mother is ill, so i have to go now.(客观需要)*have to 与 have got to 的区别：have got

4、to 虽然是 have to 的口语形式，但二者在用法上有严格的区别： have to 的前面还可以用情态动词或助动词，而 have got to 却不可以；have to 的否定形式为 dont/doesnt/didnt +have to,疑问式为 do/does/did + 主语 + have to?而 have got to 的否定形式是在have 后加 not,疑问式把 have 提前。例如：we dont have to go home.do you have to go home?we havent got to go home.have you got to go home?专项

5、练习 11must i do it now?-no, you.a. needntb. dont have toc. mustntd. a or b 2.its nearly seven oclock. jackbe here at any time.a. mustb. needc shouldd can.3when can i come for these photos? i need them tomorrow afternoon.-theybe ready by 12:00.a. canb. shouldc. mightd. need4. theydo well in the exam.a

6、. can be able tob. be able toc. can able tod. are able to 5, -could i take this book out?-no, you.a. cant b. couldnt c. neednt d. arent6. yougo and see a doctor at once because youre got a fever.a. can b. must c. dare d. would 7.-can you speak japanese?-no, i.a. mustnt b. cant c. neednt d. may not8.

7、 even the top students in our class cant work out this problem, so itbe very difficult.a. may b. must c. can d. need9. he isnt at school. i think hebe ill.a. can b. shall c. must d. has to10. the childrenplay football on the road.a. cant b. can c. mustnt d. must11. his arm is all right. hego and see

8、 the doctor.a. has not to b. dont have toc. havent to d. doesnt have to12. excuse me.you please pass me that cup?a. dob. shouldc. wouldd. must13. -would you like to go boating with us?-yes,.a. id likeb. i wantc. id like tod. i do“”“”at the end, xiao bian gives you a passage. minand once said, people

9、 who learn to learn are very happy people. in every wonderful life, learning is an eternal theme. as a professional clerical and teaching position, i understand the importance of continuous learning, life is diligent, nothing can be gained, only continuous learning can achieve better self. only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of th