外研版中考英语第17讲九年级上册modules1-2课件内容摘要:
D. 300 metre long 2. while, when, until, before, as soon as引导的从句 【 典例在线 】 While we39。 re staying with them, we39。 re going to spend a few days in , 我们将会在青岛待几天 Let39。 s enjoy ourselves until we go back to 快 , 直到回到学校。 Just before 12 o39。 clock, everyone counts down from 12点钟之前 , 大家从 10开始倒数。 As soon as I leave home, I39。 ll learn to cook. 我一离开家就学烧菜。 The teacher came in when/while we were talking about him.= When the teacher came in, we were talking about , 他进来了。 【 拓展精析 】 都可引导时间状语从句 while当 „„ 的时候 , 指时间段;从句中的动词必须是延续性动词;主句的动作发生在从句动作发生的过程中或主从句两个动作同时发生。 when当 „„ 的时候 , 既指时间点 , 也可指时间段;从句中的动词可以是终止性动词 , 也可以是延续性动词;从句的动作和主句的动作可以是同时 , 也可以是先后发生。 not...until...直到 „„ 才 , 指时间点;从句中的动词是终止性动词;主句的动作发生在从句动作之后。 before在 „„ 之前 , 指时间点;从句中的动词是终止性动词;主句的动作发生在从句动作之前。 as soon as一 „„ 就 , 指时间点;从句中的动词是终止性动词;主句的动作与从句动作几乎同时发生。 注意: when, until, as soon as引导时间状语从句时 ,若主句为一般将来时 , 从句用一般现在时表示将来。 【 活学活用 】 (3)—Hey, can39。 t cross the street have to wait __C__ the traffic lights turn green. —Oh, sorry and thank you.(2020, 丽水 ) A. when B. after C. until D. while (4)Your uncle will e to see you as soon as he __A__ here.(2020, 重庆 B) A. arrives B. arrived C. will arrive D. is arriving (5)Laura opened the door and rushed into the rain __C__ I could stop her.(2020, 济宁 ) A. until B. after C. before D. unless (6)I will do some cleaning as soon as I __A__ my homework.(2020, 聊城 ) A. finish B. will finish C. has finished D. finished 3. It39。 s better to use a plastic lunch 料午餐盒。 【 典例在线 】 It39。 s hot 39。 s better to wear thin clothes. = You39。 d better wear thin clothes. = It39。 s best to wear thin clothes. 今天天热 , 最好穿薄衣服。 【 拓展精析 】 It39。 s better to do , 意为 “ 最好 „„” , 相当于 You39。 d better do sth. 【 活学活用 】 (7)It39。 s better not to see(not see)your teacher at once. (8)It is better for you to do something else.(改为同义句 ) You had better do something else. 4. 比较级+ and+比较级 越来越 „„ 【 典例在线 】 The lift climbed faster and faster until we reached the 88th , 直到我们抵达第 88层。 Our school is being more and more 学校变得越来越漂亮。 【 拓展精析 】 “ 比较级+ and+比较级 ” 表示 “ 越来越 „„” , 如better and better(越来越好 ), more and more difficult(越来越难 )。 【 活学活用 】 (9)—The relation between the two countries gets __A__. A war seems to。外研版中考英语第17讲九年级上册modules1-2课件
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