（三起）北师大版六下英语Unit 10 Review-ppt课件(配套教案编号：60c46).ppt

1、It has no colour. It has no smell and no taste. It is everywhere around us. We can only live for about three days without it. If there is no water, what will happen? If we dont save water, what will be the last drop of water on the earth? If sentences: actions having results that will probably happe

2、n The verb in the if clause is the simple present tense. The verb in the main clause is the simple future tense. If it is hot, we will go swimming. （主（主将将从从现现） We will go swimming if it is hot. In if sentences, the if clause can come first or second. When the if clause is first, there is a comma aft

3、er it. （从（从现现，主主将将） If you help me, I will give you a special present. 1. Father Christmas hates getting up! He always feels tired in the morning. 2. Father Christmas sometimes forgets the presents he has brought in his bag. 3. Father Christmas cant fit in his red clothes. 4. Father Christmas cant f

4、ind the right address to give presents. 5. Father Christmas cant see clearly any more. Father Christmas hates getting up! He always feels tired in the morning. Father Christmas sometimes forgets the presents he has brought in his bag. Father Christmas cant fit in his red clothes. Father Christmas ca

5、nt find the right address to give presents. Father Christmas cant see clearly any more. If you have the present, what will you do? Special For You If sentences: actions having results that will certainly happen In these sentences, both verbs are in the same tense the simple present. Snow turns into

6、water if you heat it. （主（主现现从从现现） （从（从现现，主主现现） Possible actions 1. If you take a fish out of water, 2. If you cool water, 3. If you boil water, 4. If you heat metal, 5. If you put wood into water, 6. If you plant seeds in soil, 7. If you drop a glass, 8. If you do not give plants water, Results a. i

7、t melts. b. it dies. c. they grow. d. it turns into ice. e. they die. f. it breaks. g. it becomes steam. h. it floats. What happens if you take a fish out of water? Are you sure? It dies. Of course Im sure. If you take a fish out of water, it dies. Pair work: 1. If I pass my exams Ill leave school.

8、2. If I leave school, Ill get a job. 3. If I get a job, Ill work as a _. 4. If I work as a _,_. 5. If I _, _. 6. If I _, _. 7. If I _, _. 8. If I _, _. Day dreams: Saying something that you believe are true or certainly happen: If you freeze water, it turns to ice. ( Both simple present tense in if

9、and main clause) Saying something that you believe is possibly true or will probably happen: If you get up late, you will not catch the first bus. ( simple present tense in if clause, simple future tense in main clause ) 讨论主题讨论主题 “If ” 从从 句句 主主 句句 确定会确定会发生的事发生的事 有可能会有可能会发生的事发生的事 一般现在时一般现在时 一般现在时一般现在

10、时 一般现在时一般现在时 一般将来时一般将来时 Notes: If the if clause comes before the main clause, we use a comma after it. , , _ the wheels _, they _ more easily. If you make round will turn _ another _, it _ fly. If you put on wing will _ put on _, you _ not feel so _. If you your sweater will cold _ switch on _, you

11、_ cooler. If you the air-conditioner will feel The seeds _ if you _ soil. will grow put them in the The plants _ you _ not _ water. will die if do give them The meat _ not _ bad _ you _ the fridge. will turn if put it in You _ better _ you _. will see if put on / wear glasses If he _ back, please le

12、t me know. Do you know if he _ back next week? comes will come if 在条件状语从句在条件状语从句 中表示中表示如果如果 if 在谓语动词之后引导宾在谓语动词之后引导宾 语从句表示语从句表示是否是否，相当于，相当于 whether。 Please let me know if he comes back. Assignment: For more able students: Write a passage about your daydreams in at least 60 words. For less able students: Finish the exercises of the Language Section.