九年级英语全册知识.docVIP

九年级英语Unit1 一 语法 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，how long 连用 Have you finished your work yet？你完成了你的工作了吗？ ⑶ ①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 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/lend----- 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 已回，一般与表次数的词连用 ②have (has) gone to + 地点 去了某地 没回 ，主语一般是第三人称 ③have been in + 地点 一直呆在某地 没有离开过，一般与一段时间连用 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) 二:短语，句型 1. by + doing 通过……方式　如：by studying with a group by 还可以表示： “在…之前”“乘车”等 　　如： I have to go back by ten o’clock. The student went to park by bus. 2. talk about sth 谈论某事 talk to sb. === talk with sb. 与某人说话 3. 提建议的句子： ①What/ how about +doing sth.? ②Why don’t you + do sth.? 如：Why don’t you go shopping? ③Why not + do sth. ? 如：Why not go shopping? ④Let’s + do sth. 如： Let’s go shopping ⑤Shall we/ I + do sth.? 如：Shall we/ I go shopping? 4. a lot 许多 常用于句末　如：I eat a lot. 我吃了许多。 a lot of许多　== lots of 许多　常与名词连用 5. too…to 太…而不能 常用的句型 too+adj./adv. + to do sth. 如：I’m too tired to say anything. 我太累了，什么都不想说。 6. aloud, loud与loudly的用法 三个词都与大声或响亮有关。 ①aloud是副词,②loud可作形容词或副词。③loudly是副词, 7. not …at all 一点也不 根本不 如： I like milk very much. I don’t like coffee at all. 8. be / get excited about sth. === be / get excited about doing sth. === be excited to do sth. 对…感兴奋 9. ① end up doing sth 终止做某事，结束做某事 ② end up with sth. 以…结束 如： 10. first of all 首先 . to begin with 一开始 later on 后来、随 11. also 也、而且（用于肯定句）常在句子的中间 either 也（用于否定句）常在句末 too 也 (用于肯定句) 常在句末 12. make mistakes in doing犯错 make a m