七年級英語下冊 Unit 4 Don’t eat in class課件2 （新版）人教新目標版

SECTION B & SELF CHECKSECTION B & SELF CHECK123451.practice the guitar (教材P22)練吉他解讀 practice的用法。(1)practice作動詞,意為“練習;實踐”,其后可跟名詞、代詞或動詞-ing形式作賓語。I practice playing the piano every day.我每天練習彈鋼琴。(2)practice作名詞,意為“練習;實踐”,常用作不可數(shù)名詞。Practice makes perfect.熟能生巧。12345123452.before dinner (教材P22)晚飯前解讀 (1)before介詞,意為“在以前”,反義詞為after,后接名詞、代詞或動詞-ing形式,常作時間狀語。I must finish my homework before 9:00.我必須在9點以前寫完家庭作業(yè)。I like to listen to music before going to bed.我喜歡睡覺前聽音樂。(2)作連詞,意為“在以前”,引導時間狀語從句。It was some time before I realized the truth.過了很長一段時間我才悟出真相。(3)作副詞,意為“以前”,常用于現(xiàn)在完成時態(tài)中。I have never seen him before.我以前從未見過他。12345123453.Parents and schools are sometimes strict,but remember,they make rules to help us.(教材P23)父母和學校有時是嚴格的,但是記住,他們制定規(guī)則是為了幫助我們。解讀 strict 形容詞,意為“嚴格的;嚴厲的”。Is your English teacher strict?你的英語老師嚴厲嗎?一言辨異嚴于律“物”與嚴于待“人”的strictbe strict with對要求嚴格,后接表示人的名詞或代詞;表示對某事要求嚴格,則用be strict in。Mr.Smith is strict with us and he is also strict in his work.史密斯先生對我們很嚴格,他也對工作要求嚴格。12345123454. .I have to keep my hair short.(教材P24)我必須留短發(fā)。解讀 keep為動詞,意為“保留;保存;保持”。keep +sth.+adj. “讓某物保持某種狀態(tài)”,屬于“keep+賓語+賓語補足語”結(jié)構(gòu),其中賓語補足語常由形容詞、副詞或介詞短語充當。Please keep the window closed.請讓窗戶關著。12345拓展keep的常見用法:(1)“keep +形容詞”,表示“保持某種狀態(tài)”。You need to take more exercise to keep healthy.你需要多鍛煉來保持健康。(2)keep sb.doing sth.讓某人一直做某事Dont keep him standing.別讓他一直站著。(3)keep on doing sth.堅持做某事If you keep on working hard,your dream can come true one day.如果你堅持努力工作,你的夢想總有一天會實現(xiàn)的。12345123455.I never have fun.(教材P24)我從未開心過。解讀 fun “愉快;開心,樂趣”,是不可數(shù)名詞。have fun 意思為“玩得開心”,相當于have a good time和enjoy oneself。Swimming is great fun.游泳很有樂趣。拓展延伸(1)have fun(in) doing sth.做某事很開心We have fun learning English.我們學英語很開心。(2)fun 形容詞,意思為“有趣的;令人愉快的”。I like English because its fun.我喜歡英語因為它有趣。12345Section B1ah c e b g d f1b參考下一題答案1ca.go outcanton school nightsh.see friendscanton school daysc.do his homeworkhave to/mustafter classe.practice the guitarhave to/mustbefore dinnerb.do the disheshave to/mustafter dinnerg.watch TVcantin the eveningd.help his mom make breakfasthave to/mustevery morningf.clean his roomhave to/mustevery Saturday2bUnderlined:Get up now and make your bed;Dont leave the dirty dishes in the kitchen;cant be late;dont be noisy;dont eat in class;cant play basketball after school;must do my homework;I can play only on weekends;read a book before I can watch TV;have to go to bed before 10:002c1.cant;can2.has to/must3.has to/must;can4.cant5.have to/must3aCan,have to/must,have to/must,have to/must,cant,have to/must,cant,have to/must,canSelf Check1arrive late,be noisy,listen to,is strict,follow the rules22.Listen to the teacher./We must/have to listen to the teacher.3.We must not be noisy in the library./We cant be noisy in the library./Dont be noisy in the library.4.We must/have to speak English in English class.5.Eat in the dining hall.We must/have to eat in the dining hall.