Module3 Unit3 课件 2022-2023学年外研版英语八年级下册

Unit 3 Language in use Module 3 Journey to space 1 能够用现在完成时 谈论最近发生的事 情。 能够结合图片等其他 媒介介绍人类对太空 的探索。 培养学生对天文知识的 兴趣和对未知事物的探 索精神。 学习目标 2 Guessing game astronaut spaceship 3 Guessing game earth moon 4 Guessing game Mars galaxy 5 Language practice 1. I’ve just made a model spaceship. 2. Has it arrived yet? 3. Astronauts have already been to the moon. 4. We have not found life on any other planets yet. 6 Grammar 1. 常与现在完成时连用的副词 现在完成时常与just、 already或yet等副词连用，这些词的含义和用法如下： (1) just 刚刚，刚才； (2) already 已经肯定句助动词have/has之后，过去分词前； (3) yet 还，尚；已经否定句或疑问句句末 。 He has just read the novel. 他刚刚读了这本小说。 They have already arrived. 他们已经到达了。 Tom hasn’t heard from his friend yet. 汤姆还没有收到他朋友的来信。 Have you finished your homework yet? 你已经完成你的作业了吗？ 现在完成时 【注意】 yet用于否定句中，意为“还”，用于疑问句中，意为“已经”。 7 2. 现在完成时与一般过去时的区别 Grammar 8 I have visited the park. 我已经参观过这个公园。 （对这个公园有所了解了） I visited the park last week. 上周我参观了这个公园。 （只强调上周参观公园这件事，不涉及现在） 【助记】 当没有明确的时间状语时，判断是否用现在完成时的标准是谓语动词的行为是否对现在造成影响，如果对现在有影响，则用现在完成时。 Grammar 9 Spaceship on Mars! Astronauts have (1) _______ been to the moon but they have not been to any other planets. However, a spaceship has (2) ______ arrived on Mars and it has (3) _____ sent back photos of the red planet. Is there life on Mars? We do not know ______. already already just yet 1 Complete the news with already, just and yet. 10 2 Look at these sentences. The spaceship has gone to Mars. It has gone there, but it has not come back yet. Astronauts have been to the moon. They went there and then they came back. 11 1. Astronauts have been / gone to the moon and returned. 2. The spaceship has been / gone into space. It will travel for ten days. 3. The astronaut has been / gone to the space station. He will come back tomorrow. 4. The spaceship has been / gone to the space station. It brought back two astronauts. 2 Now choose the correct answer. 12 1. A spaceship _________ to Mars. It is coming back to earth next year. 2. Lots of astronauts _________ to the space station.