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课件网) 陕旅版·四年级下册 Unit 7 Be Careful! Part C Let’s chant 1. 祈使句：动词原形+其他. 例：Be careful! 小心！ Look at the traffic lights. 看交通灯。 Please wait a minute. 请等一下。 Review 2. 祈使句的否定句型：Don’t+动词原形+其他. 例：Don’t cross the street. 不要过马路。 3. 赞同别人意见或建议的答语： All right. 好的。 4. 含有情态动词can的句型：主语+can+动词原形+ 其他. 例：We can go now. 我们现在可以过了。 Practice 连词成句 1. at, look, lights, the, traffic. 2. cross, the, do, not, street. 3. wait, a, minute, please Look at the traffic lights. Do not cross the street. Please wait a minute. 2 3 1 Listen and number 1. The light is red. Liu Tao stops and waits. 2. Mr. Gao is turning right. 3. Huanhuan and her mother are crossing the street. The light is green. 听力原文 Look. Don’t look. Listen. Don’t listen. √ √ Look, tick and say Cross. Don’t cross. Turn left. Don’t turn left. √ √ Stop. Don’t stop. Run. Don’t run. √ √ Quick response Be careful. Please go. Don’t turn left. Please wait a minute. Look and match Read and say What can you see in this picture Read and tick or cross It is a busy morning. Look at the traffic lights and be careful. The light is green. People are crossing the street. The boy and the girls are going to school. The young man is going to work. The old man is going to the park. And the cars are running. “年轻的”。 例：He is a young man. “忙碌的”。 例：The traffic is busy at the moment. ( ) A man is going to work. ( ) The cars stop there. ( ) The light is green. People are waiting. √ × × We can say: It is a _____ morning. Look at the _____ _____and ____ _____. People are _____ the street. The boy and the girls ____ _____ ____ school. busy traffic lights be careful crossing are going to Read and fill 1. What is the young man going to do 2. What are the cars doing 3. Look at the traffic lights.What color is it Are people waiting there The young man is going to work. The cars are running. The light is green. No, they aren’t. Read and answer 1. busy adj. 忙碌的 be busy doing sth. 忙于做某事 be busy with sth. 忙于某事 例：He is busy working. 他忙于做工作。 He is busy with homework. 他忙于作业。 Learn more busy的用法: 2. People are crossing the street. 人们正在过马路。 描述某人正在做某事的句型，现在进行时是 表示现在正在进行的动作或状态。 句型结构是: 主语+be动词+现在动词+其他。 例：他们正在看电视。 They are watching TV.
