Unit 4 Dont eat in classPart 3 Grammar Focus夯实基础，活用语法一、抄写、朗读并翻译。 1Dont run in the hallways. 抄写：_翻译：_2Can we eat in the classroom?抄写：_翻译：_3What do you have to do?抄写：_翻译：_4We have to be quiet in the library.抄写：_翻译：_5We must be on time for class.抄写：_翻译：_二、Grammar Focus语法过关。（ A ）1_ wake up your sister, Ben. She needs a good sleep.ADont BDoesnt CArent DCant（ A ）2I _ follow you. Would you please repeat it? Acant Bmustnt CneedntDshouldnt （ D ）3We _ pay to get into the concert. Its free.Acant Bmustnt Cmight not Ddont have to （ B ）4Here is my phone number. You _ call me anytime you like.Amust Bcan Cshould Dneed （ A ）5Excuse me, may I keep the book a little longer?Sorry. You _ return it today.Amust Bmustnt Ccan Dcant（ A ）6 Jim, _ read books while you are walking in the street. Its very dangerous. OK, thank you.Adont Bdoesnt Cwont Dcant（ B ）7 Can I borrow your ruler, please? Yes, you _. But you must return it to me before lunchtime. Ahave Bcan Cmust Dused to（ B ）8 Can I park my car in front of the building? No, you _. Awont Bcant Cneednt Dcouldnt（ C ）9Dad, must we wait until the light becomes green? Yes, Im afraid we _ .Thats the traffic rule.Acan Bmay Chave to Dneed（ C ）10Students in our school _ know shouting is not allowed in the library.Acan Bmay Cmust Dneed三、语法运用：用所给单词的正确形式填空。1Mr. Brown cant smoke （smoke）here, because theres a sign on the wall. It says “No smoking!”2Its very hot outside. You have to wear （wear）a hat.3Dont eat （eat）in the classroom, because Its impolite to teachers.4（Do） Does he have to go to bed before 11:00 on school night?5Students can read （read）books and magazines in the library.四、重点句型运用1我们每天放学后必须清扫课室。We must clean our classroom after school every day.2她起床后必须整理床铺。She has to make her bed after getting up.3Mr. Beckman 不得不开车上班。Mr. Beckman has to go to work by car.4他们不得不每天都要练吉他。They have to practice the guitar every day.5你能为我跳支舞吗？Can you dance for me?五、短文填空。There are too many rules in my class. First, we 1 be on time. We cant 2 late for class, or our headteacher will get angry. Second, when we want to speak, we 3 to raise our hands. We should show our respect to our teachers. 4 , we cant run in the classroom. If we do that, we may get hurt. Fourth, we cant eat 5 sleep in class. Its impolite to do so. Fifth, everybody must 6 to the teacher carefully, and we need to take some notes at the same time. Sixth, we cant go out 7 school nights. We have to finish our 8 on time. The last, we must 9 others once a week. Its good for us to help people in need. 10 our school rules are strict, we have to follow our class rules.1 must 2 arrive/be 3 have 4 Third 5 or 6 listen 7 on 8 homework 9 help 10 Although/though