What kind of food do you like?There are so many kinds of foods, vegetables and fruits.Look! What are they? And what should we eat to keep healthy? cabbagepotato chipssandwichsausageeggplant beef tomatowatermelonstrawberryI like eating _ best.Eating _ is good/bad for your health. candyice cream orangeschocolatefishchickenricevegetablesI like eating _ best.Eating _ is good/bad for your health.cabbagepotato chipssandwichsausageeggplant beef tomatowatermelonstrawberry healthy food: unhealthy food:. candyice cream orangeschocolatefishchickenricevegetableshealthy food:unhealthy food:.Vegetables FruitMeatOtherscabbage eggplant tomatoorangeapplestrawberrywatermelonchickensausagefishbeefricesandwichpotato chipsice creamchocolatecandy2a Look at the picture on page 39 and divide the food into groups.must否定式否定式mustnt 是是must not縮寫形式縮寫形式, 其意思是其意思是“禁止禁止, 不許不許, 不準(zhǔn)不準(zhǔn), 一定不要一定不要, 一定不許一定不許”。e.g. You mustnt shout in public.注意注意: 不用不用mustnt 來回答由來回答由must（必須、（必須、一定要）開頭的問句一定要）開頭的問句, 而應(yīng)用而應(yīng)用neednt (dont have to)。Grammar focuse.g. - Must we hand in our exercise books today? - Yes, you must. - No, you dont have to / you neednt. May 1) 表示請求和允許。表示請求和允許。might比比 may語氣更語氣更委婉，而不是過去式。否定回答時可委婉，而不是過去式。否定回答時可用用cant 或或mustnt，表示，表示“不可以，禁不可以，禁止止”。 -Might/ May I smoke in this room? - No, you mustnt. - May/Might I take this book out of the room? - Yes, you can. (No, you cant / mustnt. ) 用用May I.？征徇對方許可時比較正？征徇對方許可時比較正式和客氣，而用式和客氣，而用Can I.？在口語中？在口語中更常見。更常見。2) 表示推測、可能性表示推測、可能性 He may /might be very busy now. Your mother may /might not know the truth. 1. Do 4 by yourselves, then give a report to the whole class.2. Group work: Four students work in one group. Lets discuss how to form good habits. Try to use these sentences: We should/We shouldnt We must /We mustntProject Exercises 根據(jù)句意用適當(dāng)?shù)慕樵~填空。根據(jù)句意用適當(dāng)?shù)慕樵~填空。 1. Dont walk _ the lawn.2. Eating vegetables is good _ health. 3. Id like to have a glass _ milk.4. Different foods help us _ different ways.5. Its necessary _ us to have good eating habits.forofinforon將下列短語進(jìn)行英漢互譯。將下列短語進(jìn)行英漢互譯。1. look tired 2. 熬夜熬夜3. be bad for . 4. 放棄放棄 5. be necessary for . 6. 引起疾病引起疾病 stay upgive up對對, 有害有害cause disease看上去疲倦看上去疲倦對對 有必要有必要7. get into 8. 正如我們所知正如我們所知 9. keep . active 10. in different ways 11. 多于多于 進(jìn)入進(jìn)入as we know保持活力保持活力用不同的方法用不同的方法more thanHomework Write a passage about food and health. The beginning has been given.We should eat more fruit like apples, oranges and strawberries