Unit 4知识解析及练习 人教版七年级英语下册

这是一份Unit 4知识解析及练习 人教版七年级英语下册，共10页。
unit4:Don’t eat in the class一.词汇Don’t arrive late for class.上课不要迟到arrive late for=be late for 意为“迟到”arrive作动词意为“到达” 通常用arrive in+大地点，arrive at+小地点I usually arrive at school at 8 o’clock in the morningarrive in/at= get to 后接地点名词What time does the train arrive? 火车什么时候到？Tina gets to the zoo by bike. 缇娜骑自行车到动物园注意：当arrive、get后接地点副词home，here，there等时，后面的介词要省略How do you get home？You must be on time.你必须准时must作情态动词，意为“必须”，不能独立作谓语，后接动词原形一起构成谓语，其否定形式为mustn’t，意为“禁止，一定不能”I must do my homework before dinner. 吃完饭前我必须写作业注：以must开头的一般疑问句的否定回答不用mustn’t，当must表命令时，用needn’t或don’t have to作否定回答，当must表推断时，用can’t回答on time 准时，按时（踩着时间点）相似短语 in time 及时（在规定时间范围内）time衍生的常用短语：for the first time 第一次； at the same（相同的） time 同时at times =from time to time有时，偶尔； all the time一直，总是Don’t listen to music in class.不要在课堂上听音乐listen意为“听，倾听”，不及物动词，其后接宾语时要加介词toListen！Mary is singing. 听，玛丽在唱歌。Listen to me carefully. 认真听我说。I listened carefully，but I heard nothing. （一般过去时）我认真的听了听，但什么都没听见in class“在课堂上” in the class“在班里” in the classroom“在教室里面”Don’t fight. 不要打架fight作动词意为“打架，战斗”常用搭配如下：fight for.... 为...而战They fight for peace 他们为了和平而战fight against 对抗（这里不指打架）The doctors always fight against illness.医生总是在与疾病作斗争fight with... 和...打架I never fight with anyone.我从来不和别人打架sorry 形容词，意为“抱歉的，难过的，惋惜的”常用搭配如下：be/feel sorry for“为....感到难过，感到可惜”be sorry to hear...听说...感到难过I feel sorry for her.我对她感到可惜。I’m sorry to hear the news.听到这个消息我很难过listen to music outside在外面听音乐This is very important.这很重要important形容词“重要的”，可做表语，也可放在名词前做定语常用句型为：It is important（for sb.）to do something“（对某人）来说做某事很重要”The meeting is very important to us.这个会议对我们来说很重要I have some important news to tell you.我有一些重要消息告诉你It is important for children to get up early. 早起对儿童来说很重要important的名词形式为importance，意为“重要性”常用the importance of...表示“....的重要性” We know the importance of computer.我们知道电脑的重要性Can we bring music players to school？我们可以带音乐播放器到学校吗？bring“带来，取来”常用bring sth/sb to...表示把某人/某物带到....Please bring your homework to me tomorrow. 明天把你的作业带给我。 Take your bag with you after school.放学后带上书包一起走Let me get your package for you.我去帮你拿快递吧practice the gutiar 练习弹吉他practice作动词意为“练习”后接名词、代词、动词ing形式做宾语作名词意为“练习，实践”Let’s practice dancing together.让我们一起练习跳舞吧It needs a lot of practice to learn English well.学好英语需要大量的练习help his mom make breakfast.帮助他妈妈做早餐Parents and schools are sometimes strict, but remember, they make rules to help us.父母和学校有时对我们要求严格，但记住，他们制定规定是为了帮助我们。Strict是形容词，意为“严格的，严厉的”常用短语有：be strict with sb“对某人要求严格” be strict in..“在某事上严谨”My teacher is strict with his students.我的老师对他的学生要求严格。My teacher is strict in his work.我老师对工作很严谨remember 动词，意为“记住，想起”I don’t remember your name. 我想不起你的名字了。remember to do sth“记着要去做某事”（事情还没做）remember doing sth“记得做过某事”（事情做过了）Remember to do your homework after school. 放学后记得做作业I remember seeing her in this school.我记得在学校里见过她二.短语表达1. be quiet 保持安静2. What do you have to do? 你得做什么？3. take photos = take a photo 拍照4. go out 外出 5. do the dishes 清洗餐具6. too many /too much太多7. make one's bed 铺床8. Don’t leave the dirty dishes in the kitchen! 别把脏碗留在厨房里！9. I can play only on weekends. 我只有在周末可以玩。10. After dinner, I can’t relax either. 晚餐后，我也不能休息。11. What can I do? 我可以做什么？12. Don’t do this! 不许做这样！ 13. You can’t do that! 你不可以做那样！14. make rules 制定规则15. Good luck (to you)! 祝你好运！16. follow the rules 遵守规则17. learn to do sth. 学习做某事18. I never have fun. 我从不快乐。 have fun = have a good time 玩得高兴；过得愉快三.语法---祈使句概念：祈使句表示命令、请求、建议或劝告等。主语通常被省略，谓语动词用原形，句末用感叹号或句号，读降调。1、肯定祈使类型： Do 型祈使句：省主语you，实义动词原形开头。Be型祈使句：省主语you，be动词原形开头。 Let 型祈使句：省主语you，let动词原形开头。2、否定的祈使句 句型：（1）Don't +动词原形。Don't be late.不要迟到。Don't hang out with friend at night.不要晚上和朋友出去闲逛。Don't let him smoke here.不要让他在这抽烟。（2）Let sb not +动词原形. Let's not speak loudly.我们不要大声说话。（3）No smoking here.不要在这里抽烟。No photos.不要在这里拍照。Never give up！永不言弃！ 3、祈使句需要注意的一些情况1）有时为了表示委婉的语气，可以在句首或句尾加上please；但是please加在句尾时，前面要用逗号隔开。如：please sit down.请坐。Stand up ，please.请起立。2）在意思较为明显的情况下，可把谓语动词省去。如：This way，please.请这边走。 （=Go this way， please省去go谓语动词）3）有时为了明确地向对方提出请求或发出命令，可以加称呼词，但是称呼要与句子隔开。如：Turn off the light，Jim.吉姆，关灯。4）在某些名词，形容词或付出等后面要加感叹号，也可以作为祈使句使用。如：Hands up！请举起手！ Hands down！放下手！Taxi！打出租车！四.同步练习一.单项选择。( )1．He often practices English with his friends． A．speak B．speaks C．speaking D．spoke( )2．I have homework to do and Jim has books to read． A．much；much B．much；many C．many；many D．many；much( )3．--Don’t eat in class． -- . A．Good idea B．Sorry，Mr．Wang，I won’t C．Thanks a lot D．That sounds fun( )4．There are things you can do． A．many B．much C．a lot D．a little ( )5．It’s too late．I go home now． A．have to B．can C．may D．want( )6．After dinner，I can’t relax， ． A．too B．also C．Either D．never( )7．Don’t late for school． A．is B．be C．arrives D．are( )8． clean the dirty dishes after dinner． A．have to B．need C．has to D．can( )9．I have homework to do today． A．too many B．too much C．much too D．very much( )10．-- is the library? --About l 5 minutes ‘walk． A．How long B．How far C．Where D．How二.用括号内所给单词的适当形式填空。1． __________ (not talk)．It’s time for class．2．She must _________ (finish)her homework first．3．My parents don’t let me _________ (read)in the bed．4．Remember ________ (close)the windows when you leave the classroom．5．Tom has to practice _______ (play)the guitar every day． 6．Don’t talk ______ (loud)in the library．7．The students have to _______ (keep)their hair short． 8．Do you have fun ______ (learn)English?9．It usually takes me 10 minutes _______ (get)to school by bike every day．10．Mike _______ (not do)his homework every evening． 三、根据汉语提示完成下列句子1．我必须在10点前上床睡觉吗？ ____________ I ____________ to go to bed ____________ 10:00?玛丽在上学期间的晚上也能出去。Mary can also go out____________ ____________ ____________ .课堂上，我们不能戴着帽子。 We can’t ____________ ____________ ____________ in class.每天练习讲英语吧。____________ ____________ English every day.5. 我们上学不能迟到。我们必须按时到校。 We can’t____________ ____________ ____________ class. We ____________be ____________ ____________ for class.在周末我们不必穿校服。On weekends we don`t ____________ ___________ wear our ___________ ___________ .起床后收拾床铺是个好习惯。____________ a good habit to ____________ your____________ after you get up.上课时我们不能听音乐也不能吃东西We can’t ____________ ____________ music ___________ eat___________ ____________ .学校制定规章是为了帮助我们。Our school ____________ ____________ to help us.10. 我们要遵循这些规章，否则会让老师不高兴的。 We should ____________ ____________ ____________ , or you’ll ____________ your teacher ____________ .四、根据要求完成句子。（每空一词）1. You can’t swim in the river. (改为祈使句) ____________ ____________ in the river.2. You have to read some English books on the weekend. (改为否定句) You ___________ ___________ ___________ read some English books on the weekend.3. John has to keep his kitchen clean. (对划线部分提问) ____________ ____________ John have to ____________ ?4. My mother has to get up early in the morning. (改为一般疑问句并作否定回答) ____________ your mother ____________ to get up early in the morning? ____________ , ____________ ____________ .5. Sing with them in the room. (改为否定句) ____________ ____________ with them in the room. listen不及物动词，“听，倾听”侧重听的动作，接宾语时后+tohear及物动词，“听见，听到”，侧重听的结果outside副词“在外面”反义词为inside“在里面”Don’t stay inside all the time.Let’s go outside to play别一直待在屋里，我们到外面玩吧形容词“外面的”Outside workers need warm clothes in winter外面工作的工人在冬天需要暖和的衣服介词“在....外面”There is a big tree outside the house门外有一棵大树名词“外部，外表”The oustside of the box is white.盒子的外表是白色的bring“带来”，强调将人或物从别的地方带到说话人所在的地方take“带走，拿走”强调从说话人所在的地方将人或物带到别的地方get“去拿，去取”离开说话人所在的地方去别处拿某物再回来，强调动作的往返helphelp sb with sth 在某事上帮助某人He often helps me with my math.他经常帮我学数学help sb （to）do sth 帮助某人做某事Come and help me do the cleaning.过来帮我打扫卫生作不可数名词意为“帮助” Do you need help？你需要帮助吗？