八年级上册Lesson 4 Class Projects评优课课件ppt

这是一份八年级上册Lesson 4 Class Projects评优课课件ppt，共30页。PPT课件主要包含了can’t，have to ，can，can’t ，must，mustn’t，Example，æ ei等内容，欢迎下载使用。
Review the wrds.
Match the wrds.
Review the text.
Read the text and underline the rules.
Yu can use wd, paper and glue but yu mustn't use ther things. Yu must make tw musical instruments with plastic bttles.Yu can't use materials frm tys r real instruments. Yu must describe yur building but it desn't have t be lng.Yu have t play sme music with the instruments fr three minutes.
Read the sentences.
Definitin 定义
Mdal Verbs 情态动词
情态动词是：表达说话人对动作或状态的情态观点的动词。一般出现在动词原形前面与之一起构成谓语动词。
1. can, cannt (can’t)
can表示“能够”“会”“可以”。例如：Can I cme in? Yu can watch TV as lng as yu like.can’t 表示“不能够”“不会”“不可以”。例如：Yu can’t stay ut late.Yu can’t smke here.
2. must, must nt (mustn’t)
must表示“必须”“一定要”，表示说话人的主观意图和个人感情。例如：I must leave at 9:00.I must get up early tmrrw. I have a lt f things t d.
mustn’t 表示“一定不要”，语气强硬。例如：It’s a secret. Yu mustn’t tell anyne.We mustn’t waste ur time.
3. have t, d nt (dn’t) have t
have t表示“不得不”“必须”，但相比must, have t 含有“客观条件使得必须如此做”的意思。例如：Yu have t d it. （因为规章制度或情况的要求）Gerge can’t cme ut with us this evening. He has t wrk.
dn’t have t 表示“没有必要”。例如：Yu can tell me if yu want but yu dn’t have t.I’m nt wrking tmrrw, s I dn’t have t get up early.
Listen and chse the crrect wrds.
1. The man must / mustn’t take a pht.2. The students can’t / must fly their mdel planes.3. The students have t / dn’t have t use wd t make the musical instrument.4. Ben must / mustn’t sing quietly.5. The students dn’t have t / mustn’t write their reprts in English.
Cmplete with can / can’t r have t / dn’t have t.
3. Yu use dictinaries in English class, but yu use them fr tests.
2. Yu brrw bks frm the library, but yu return them n time.
1. Yu play basketball in the classrm. Yu play in the playgrund.
4. Yu cme t schl befre 8, and yu leave after 5:00.
5. Yu use mbile phnes after class, but yu use them during class.
6. Yu take phts f their animals, but yu feed them.
1. Yu stp at a red light. 2. Yu crss the rad n a red light. 3. Yu drive fast near a schl. 4. Drivers use mbile phnes. 5. Babies sit in a baby seat.
Cmplete the traffic rules with must / mustn’t.
Talk abut yur schl rules.
eat fd in class, use mbile phnes in class, get t class n time, listen t music in class, talk in exams, sleep in class, bring dictinaries t schl
can / cannt (can’t), must / must nt (mustn’t), have t / d nt (dn’t) have t
Yu can’t / mustn’t eat fd in class.
1. a) There are sme snacks in the cupbard. b) There are sme snakes in the cupbard. 2. a) There are tw cats in this rm. Which ne d yu mean? b) There are tw Kates in this rm. Which ne d yu mean?3. a) The pan is n the right. b) The pain is n the right.
Listen and chse the sentences yu hear.
Listen again and repeat.