(
课件网) R·八年级上册 UNIT 8 Let’s communicate! 第3课时 （Section A Grammar Focus 3a-3c） Enjoy a song If you want to solve the problem, a face-to-face talk usually works the best. Texting can make things worse if you’re not careful with your words. If the rehearsal ends at 7:00 p.m., I’ll pick up at 7:15 p.m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. 3a Read the sentences. Find more sentences with if -clauses in Section A. What’s the similarity (相似性) of these sentences if引导的条件状语从句 If you want to solve the problem, a face-to-face talk usually works the best. Texting can make things worse if you’re not careful with your words. If the rehearsal ends at 7:00 p.m., I’ll pick up at 7:15 p.m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. 一般现在时 一般现在时 含有情态动词的一般现在时 一般现在时 一般现在时 一般将来时 一般现在时 一般将来时 一般现在时 一般将来时 What are the tenses of the main clause (主句) and the subordinate clause (从句) 位置 例句 Section A 1b, 1c 1. We’ll finish at 7:00 p.m. if it’s on time. 2. If everything goes well, I’ll see you at 7:15. 3. If the traffic is too bad, you’ll have to wait for a few minutes. 4. If I visit China this year, I will go to the park with you. 5. If you can make it, I’ll show you around the city and let you taste all the yummy local food. 6. When will the rehearsal end if it’s on time 7. What will the man do if he visits China this year Read Section A and find more examples. 位置 例句 Section A 1d 1. If you come to my city, I’ll show you around. 2. If I go there, I’ll try all the delicious local food. Section A 2a and 2d 1. If you want to solve the problem, a face-to-face talk usually works the best. 2. If you can’t meet, just call your friend. 3. Some of you may prefer texting, but it takes longer and can make things worse if you’re not careful with your words. 位置 例句 Section A 2a and 2d 4. If you stay calm and say sorry, it will help. 5. If it is still hard to talk, take a break. Section A 2e 1. If you can come, I’ll be very happy. 2. If you want to make some new friends, this is a good chance. 3. If you need help, I think you should tell … 4. If you talk to …, I think he / she will be happy to help you. 5. If you go there, you’ll … 6. If you join me, we can … 条件状语从句的时态和主句的时态有何关系？ Discuss and say 什么是条件状语从句？ 条件状语从句和主句的位置关系是怎样的？ 条件状语从句可以和其他句式进行转换吗？ if引导的条件状语从句 在复合句中作条件状语的句子叫条件状语从句。条件状语从句常用if 来引导。 概 述 Let’s learn if 引导的条件状语从句，既可放在主句前，也可放在主句后。位于主句前，要用逗号与主句隔开；位于主句后，其前不必用逗号。 ◆ If you want to keep fit, you should exercise at least thirty minutes a day. 如果你想保持健康，你每天至少应该锻炼三十分钟。 用逗号与主句隔开 位 置 ◆ The children won ... ...
