《Unit 8 Section A课件 人教新目标版.ppt

Look at the pictures. What are they doing? 1a. Look at the bulletin board and read  about ways you could help people. 1b. Listen and complete the sentences. give out cheer up clean up volunteer 1c. Pairwork A: What would you like to help others? B: I’d like to help old people. What about you? A: I’d like cheer up sick kids. 2a. A group of students are planing a City Parks Clean-Up Day. They are talking about ways to tell people about the Clean-Up day. Listen and check the things the students are going to do. 1. We need to _____ ____ ______ a plan. 2. We can’t ______ _______ making a plan. Clean-up Day is only two weeks from now. 3. I’ll _____ ______ all our ideas. 4. We could _____ ______ signs. 5. I’ll _____ ________ advertisements after school. 6. We could each _____ _____ ten people and ask them to come. Do you know their meanings? 2c. Pairwork A: Now we need to come up with a plan to tell people about the Clean-Up Day. B: But I am hungry, Bob. Let’s have lunch first. A: No, we can’t put off making a plan. Clean- Up Day is only two weeks from now. Explanation 1.You could help clean up the city park. help (to) do “帮助做……”。例如： Teachers criticisms help improve our study. help do 和help doing help 后接不定式，可带to, 也可不带to。help后可接 动名词，但与help do的意思完全不同。help doing 常用于否定句，与cannot连用，构成cannot help doing,表示“不禁；禁不住；不得不”的意思， 相当于can’t but do. e.g. I can’t help thinking so. 2. We need to come up with a plan. (1)need用作实义动词，有“必要”、“必需”之意，有人称、数和时态的变化，可以接名词、代词、动名词或带to 的动词不定式作宾语，构成疑问句和否定句时要借助于助动词。 e.g. Do you need to see him yourself? (2) need用作情态动词, 意为“必须”、“必要”，没有人称、数的变化，后接不带to 的动词不定式。 通常用于疑问句和否定句中，构成疑问句和否定句时，不需要使用助动词。 e.g. Need you go to the park with your classmate? (3) 由need引出的疑问句，答语表肯定时用 must或have to；表示否定时用needn’t或 don’t have to。例如： A: Need I come to work tomorrow? B: Yes, you must / have to. 3. We could put up signs. sign 是名词，具体用法如下： (1) “标牌,招牌”。例如： th