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| 九年级英语Unit5 | |||||
作者:佚名 文章来源:不详 点击数: 更新时间:2007-9-30 ![]() |
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九年级英语Unit5 现在完成时态 ⑴由have/ has + 过去分词 ⑵表示过去发生或已经完成的某一动作对现在造成的影响或结果 常与already, just , yet , ever, never 连用 Have you finished your work yet?你完成了你的工作了吗? Yes, I have. I have just finished it. 是的。我刚刚完成了。 I have already finished it . 我已经完成了。 Have you ever been to China? 你曾经去过中国吗? No, I have never been there. 没有,我从来也没有去过。 ⑶①表示过去已经开始,持续到现在的动作 或状态和表示过去某一时刻延续到现在(包括现在在内)的一段时间的状态连用如:(for + 时间段,since + 时间点,或过去某一动作, 以及how long ) ②注: 非延续性动词在现在完成 时态中不能和for, since 引导的表示一段时间的状语的肯定句连用。 应转为相应的延续性动词 如: buy---- have die---- be dead join ---- be in borrow----- keep leave---- be away I have bought a pen.------ I have had a pen for 2 weeks. The dog has died.------- The dog has been dead since last week. ⑷①have (has) been to + 地点 去过某地 已经回来 ②have (has) gone to + 地点 去了某地 没有回来 ③have been in + 地点 一直呆在某地 没有离开过 如: She has been to Shanghai. 她去过上海。(已经回来) She has gone to Shanghai. 她去了上海。(没有回来) She has been in Shanghai for 2 days. 她呆上海两天了。(没有离开过上海) 1.情态动词must, may , might, could, may , can’t表示推测含义与用法后面都接动词原形,都可以表示对现在情况的揣测和推断但他们 含义有所不同 may, might, could有可能,也许 (20%-80%的可能性) can’t 不可能,不会 (可能性几乎为零) The dictionary must be mine. It has my name on it. The CD might/could/may belong to Tony because he likes listening to pop music. The hair band can’t be Bob’s. After all, he is boy! 2. whose 谁的 疑问词 作定语 后面接名词 如:Whose book is this? This is Lily’s. 3. belong to 属于 如: That English book belongs to me. play the guitar play the piano play the violin 当play 指进行球类运动时,则不用定冠词 如: play football play basketball play baseball 5. if引导的条件状语从句,主句用一般将来时, 从句用一般现在时代替将来时 如: If you don’t hurry up, you’ll be late.如果你不快点,你将会迟到 6. if you have any idea== if you know 如果你知道 7. on 关于(学术,科目) 8. try to do sth. 尝试做某事 如: I try to climb the tree. 我尝试爬树。 9. because of , because because + 从句 如: I do it because I like it. 我做这件事是因为我喜欢。 I had to move because of my job. 因为工作的原因我得搬家。 10. own v.-owner n. listen v.-listener n. learn v.-learner n. 11. catch a bus 赶公车 neighborhood 邻居 指地区也可指附近地区的人 13. local 当地的 如:local teacher 当地的教师 14. noise n. 噪音 是个可数名词 noises 15. call the police 报警 如:Quick! Call the police! 快!叫警察! 16. anything strange 一些奇怪的东西 当形容词修饰something, anything, nothing, everything等不定代词时,放在这些词的后面 17. there be sb./ sth. doing 如: There is a cat eating fish. There must be something visiting our home. |
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