Unit 4 Hands-on fun Grammar 课件-2025-2026学年译林版（2024）英语八年级上册

Grammar Unit 4 Hands-on fun 1 Learning aims 能掌握祈使句的用法 能正确使用情态动词should (not)和had better (not) 2 Lead in Watch and sing 3 Activity 1 Learn to use imperative sentences Millie and Andy are trying to put together a bookshelf. Read their conversation and pay attention to the parts in bold. Andy: Let’s put the pieces of wood together. Please hand the tools to me. Millie: OK. Here you are. What else can I do? Andy: Look for the chalk mark on the top of each piece. Make sure pieces of the same size are in the same group. Don’t mix them up. 4 Let’s put the pieces of wood together. Please hand the tools to me. Look for the chalk mark on the top of each piece. Make sure pieces of the same size are in the same group. Don’t mix them up. 类型 结构 例句 Do型 Be型 Let型 肯定结构 祈使句结构 V原 Stand up! Be+adj./n. Be quiet, please. Tom, be a good boy! Let sb. do sth. Let’s go! Let me help you. more polite suggest doing sth. together 类型 结构 例句 Do型 Be型 Let型 否定结构 Don’t+V原 Don’t +be+adj./n. Don’t let sb. do sth. Let sb. not do sth. No+n./v-ing! Don’t stand up! Don’t be late! Let’s not say anything about it. Don’t let him go. No photos! No smoking! No型 ＊We start a sentence with the base form of a verb when we want to tell people what to do. ＊We add __________ before a verb when we want to tell people not to do something. ＊We often add __________ in a sentence to make an instruction more polite. ＊We can use __________ when we want to suggest doing something together. don’t please let’s Practice A1 Millie is teaching her classmates how to make flashcards to help them remember things better. Look at the pictures and help Millie complete the sentences. cut draw give keep look try write (1) ________________ cards out of pieces of paper with a pair of scissors. (2) ________________ some words or a sentence on each card. Cut Write cut draw give keep look try write (3) ________________ a picture to show the words or sentence on the other side of the card. (4) ________________ at the picture and (5) ________________ to say what is on the other side. Draw Look try Please (6) ________________ (not) up. (7) ________________ trying and you will find you can remember things better. don’t give Keep A2 There is a new type of desk at your school. You can change the height of the desk by pressing a button. Write some sentences, using the grammar above, to teach your classmates how to use the desk. Activity 2 Learn to use should and had better correctly. Suzy and her mum are trying to paint a bird box. Read their conversation and pay attention to the parts in bold. Mum: Here’s the paint. We’d better clean the bird box first. Suzy: OK, I’ll help you. Mum: Now you should mix the paint well. Then put the brush into the pain You’d better not get too much paint on the brush. Suzy: Is this OK? Mum: Yes. Move the brush up and down slowly like me. You shouldn’t go too fast, Suzy. Suzy: OK, Mum. We use ___________ and ___________ when giving advice and telling people what we think is best or the right thing to do. should had better The structures of should/had better: 肯定形式：should + do sth. 否定形式：should not(shouldn’t) +do sth. 肯定形式：had better(’d better) +do sth. 否定形式：had better(’d better) not +do sth. 1. Should / Shouldn’t 意思：表示“应该”或“不应该”。这是给别人提建议最常用、最普遍的方式。语气比较客气、温和。 怎么用： 肯定句: 主语 + should + 动词原形 ... Example: You should do your homework first. （你应该先做作业。） 否定句: 主语 + shouldn’t + 动词原形 ... (shouldn’t = should not) Example: You shouldn’t eat too much ice cream. （你不应该吃太多冰淇淋。） 特点: 就像一位友好的朋友在给你建议。 2. Had better / Had better not 意思：表示“最好”或“最好别”。这个语气比 should 要更强一些，经常用在某种特定情况下，告诉你做什么事（或不做什么事）可以避免不好的结果。有点像中文里的“你最好…，不然可能会…”。 怎么用： 肯定句: 主语 + had better (‘d better) + 动词原形 ... Example: It’s raining. You ‘d better take an umbrella. （下雨了。你最好带把伞。（不然可能会淋湿）） 否定句: 主语 + had better not (‘d better not) + 动词原形 ... Example: The teacher is coming! We ‘d better not talk. （老师来了！我们最好别说话了。（不然可能会有麻烦）） Practice B1 Suzy is giving DIY advice to her classmates. Read the advice below. Help Suzy make sentences with should (not) or had better (not). a begin your work without reading them b join a DIY club to learn more about it c read them slowly and carefully d be patient e be careful when you use it f buy some to learn more about it g play with them when you do DIY jobs 1 There are many useful books about DIY. _____________________________________________ 2 DIY is not always easy. _____________________________________________ 3 Instructions are important. _____________________________________________ 4 Scissors can be dangerous. _____________________________________________ You should/ had better read them slowly and carefully. You should/ had better practise more. You should/ had better not begin your work without reading them. You should/ had better not play with them when you do DIY jobs. 5 Sometimes it takes time to do a DIY job. _____________________________________________ 6 Glue can hurt your skin and eyes. _____________________________________________ 7 Instructions can be difficult to understand. _____________________________________________ You should/ had better be patient. You should/ had better be careful when you use it. You should/ had better join a DIY club to learn more about it. Write some more advice about doing DIY, using should (not) and had better (not). Summary ◆祈使句 ＊We start a sentence with the base form of a verb when we want to tell people what to do. ＊We add __________ before a verb when we want to tell people not to do something. ＊We often add __________ in a sentence to make an instruction more polite. ＊We can use __________ when we want to suggest doing something together. don’t please let’s ◆should/had better We use ___________ and ___________ when giving advice and telling people what we think is best or the right thing to do. should had better Homework 1 Finish the exercise on your workbook. 2 Preview the next period. 23 Lavf56.15.100 $