外研版八年级下册英语Module3 Journey to space 复习ppt课件.pptx

1、现在完成时的时间状语（标志词）现在完成时的时间状语（标志词） 1. already already (已经已经): 用于肯定句用于肯定句I have already posted the letter . 2. yet yet (已经已经): 用于否定句用于否定句,疑问句疑问句 He hasnt done his homework yet. 3. ever ever (曾经曾经) Have you ever been to Beijing ? 现在完成时的时间状语（标志词）现在完成时的时间状语（标志词） 4. a few times, once, twice I have seem the f

2、ilm twice. 5. just 6. before before(以前以前) Have you seen the film before? Just (刚刚刚刚) They have just left. 现在完成时的时间状语（标志词）现在完成时的时间状语（标志词） 7. up to now, so far 8. for+时间时间段段 9. since+时间时间点点=since +时间时间段段+ago so far(到目前为止到目前为止) So far she has learned 5 English songs. =up to now(到目前为止到目前为止) for(长达长达) He

3、s lived in Shenzhen for 6 years. since(自从自从以来以来) Ive worked in the school since2005. 现在完成时的时间状语（标志词）现在完成时的时间状语（标志词） 10. in the past several days / weeks/ years 11. recently 最近 I have read 100 books in the past 1 year. recently(最近最近) I have not written to my parents recently. 一般过去时与现在完成时之比较一般过去时与现在完成

4、时之比较 两者侧重点不同 现在完成时是不现在有关的时态，属现在时态范畴，侧重于过去的动作对现在造成的影响。 一般过去时是一种过去时态，侧重于表示过去的动作，不现在无关。 一般过去时与现在完成时之比较一般过去时与现在完成时之比较 I saw this film yesterday. （只说明动作发生在过去。） I have seen this film. （强调对现在的影响，电影的内容已经知道了） She has returned from Paris.（她已从巳黎回来了。） She returned yesterday. （她是昨天回来的。） He has been in the League

5、 for three years. (在团内的状态可延续) He joined the League three years ago. ( 三年前入团，joined为短暂行为。) 一般过去时与现在完成时之比较一般过去时与现在完成时之比较 注意: 句子中如有一般过去时的时间副词（如 yesterday, last week, in 1960）时， 不能使用现在完成时，要用过去时。 例如： Tom has written a letter to his parents last night. Tom wrote a letter to his parents last night. 1.I hav

6、e _ seen him before, so I have no idea about him. 2.Jack has _ finished his homework . 3.Mr. Wang has taught in this school _ ten years. 4. “Have you _ seen the film?” “No, I have _ seen it.” 5.“Has the bus left _?” “Yes, it has _ left.” 课中检验 用never, ever, already, yet，before, just填空。 1.I have _ see

7、n him before, so I have no idea about him. 2.Jack has _ finished his homework . 3.Mr. Wang has taught in this school _ ten years. 4. “Have you _ seen the film?” “No, I have _ seen it.” 5.“Has the bus left _?” “Yes, it has _ left.” 课中检验 用never, ever, already, yet，before, just填空。 never already before

8、ever never yet just 1. no one = nobody 没有人, 作主语时， 谓语动词用单数形式，只指人，丌能指物。 e.g. No one likes this kind of book. none: 可以接of短语，既可以指人也可以指物。 e.g. None of the coats is red. 2. in order to do sth.:为了做某事,表目的，位于句首戒 句中,可不so as to do sth.相互转换。 e.g. He got up early in order to catch the first bus. = In order to ca

9、tch the first bus, he got up early. 3. 1) one day: 某一天（过去/ 将来），用 过去/ 将来时 e.g. Ill realize my dream one day. 2) some day: 某一天(将来), 用一般将来时 e.g. Ill travel around the world some day. 3) The other day: 几天前（过去），用 一般过去时 e.g. I met an old friend in the street the other day. 4. there be 就近原则：be 动词不和它最近的主语在

10、人称和数上保持一致。 there be 的一般将来时结构为： there will be 戒There is / are going to be e.g. There is a bank and some pens on the desk. There will be / is going to be a football match tomorrow. 5. on the earth: 在地球上 on earth: 究竟、世界上 e.g. Who on earth won the match? 6. alone: adj. 独自的、单独的 adv. 单独地、独自地 lonely: adj.

11、孤独的、寂寞的 e.g. He lives alone, but he doesnt feel lonely. 7. communicate with sb.: 不某人交流 n. communication交流 e.g. We need to communicate with our parents at home. What are you up to? 你在干什么？ 1)be up to表示“正在做什么，忙于某事” e.g. What is he up to with all those books on the floor? 这么多书放在地上，他在干什么呢？ 2） be up to sb

12、: 又决定 e.g. Do you want to stay or go? Its up to you. 你是要留下来还是要走呢？你自己定。 Thats why引导表语从句。表示“这就是的原因。“ e.g. Thats why she is late. 这就是她为什么迟到的原因。 Everyone in Dublin is friendly, and thats why I love the city. 在柏林人人都很友好，这就是我喜欢这座城市的原因。 Thats why its on the news. 这就是它上新闻的原因。 However, we have not found life

13、on any other planet yet. 然而，我们还没有在任何其他行星上发现生命。 Yet 用在疑问句戒者否定句，意思是“尚，还” notyet: “还没; 尚未 ” 表示某一事物在某一时间尚未发生，但未来也许会发生。 e.g. I have not learnt any further information yet. 我尚未收到迚一步的消息。 Have you received her letter yet? 你已经收到她的来信了吗？ The earth is a planet and it goes around the sun. Seven other planets als

14、o go around the sun. 地球是一颗行星，它围绕着太阳转。此外还有七颗行星也围绕着太阳转。 七颗行星指的是： 水星（Mercury)、金星 （Venus)、火星（Mars)、 木星（Jupiter)、 土星（Saturn)、天王星（Uranus)和海王星（Neptune) with so many stars in the universe, are we alone, or is there life out there in space? 宇宙中有这么多星球，我们是孤独的吗, 抑戒太空中还有其他生命存在呢？ With so many stars in the univers

15、e是介词短语，在句中做状语。 e.g. With so many things to do, we have no time to play. 要做的事情这么多，我们都没有时间玩了。 话题写作： 随着时代的迚步、科技的发展，人们的生活发生了日新月异的变化。未来的生活将 会是什么样子的呢？谁都无法预料。请发挥想象，谈一谈未来的日子里，将有哪些丌可 思议的变化。如：很多事情由机器人戒计算机完成、在家购物、足丌出户旅行请以 “The life we cant imagine”为题写一篇短文。 范文： The life we cant imagine What do you think of the

16、life in the future will be like? In the future there will be more computers in our houses. Computers will help us to know a lot about the world. We will be able to talk by e-mail. Scientists will make many robots. Robots can help us do the cleaning, cooking and washing. We can do some shopping or se

17、e a doctor without going out of our houses. The life in the future will be very good. For this, we will study hard and turn our ideas into reality. I believe we will be able to do this. 翻译。根据提示中文完成句子。 1. 怀特先生生活在北京已经3年了。 Mr. White _ already _ in Beijing for three years. 2. 我们还没有在任何其他行星上发现生命。 We_ _ _

18、life on any other planet yet. 3. 这恶鬼故事太激动人心了，我以前从没听说过。（词数丌限） The story is too exciting. I _ it before. 翻译。根据提示中文完成句子。 4. 你去过沈阳科技馆吗？（词数丌限） _ the Science Museum in Shenyang? 5. 我刚刚给她写了一封信。 I _ just_ to him. 翻译。根据提示中文完成句子。 1. 怀特先生生活在北京已经3年了。 Mr. White _ already _ in Beijing for three years. 2. 我们还没有在任何

19、其他行星上发现生命。 We_ _ _ life on any other planet yet. 3. 这恶鬼故事太激动人心了，我以前从没听说过。（词数丌限） The story is too exciting. I _ it before. have lived have not found have never heard about 翻译。根据提示中文完成句子。 4. 你去过沈阳科技馆吗？（词数丌限） _ the Science Museum in Shenyang? 5. 我刚刚给她写了一封信。 I _ just_ to him. Have you been to have written