人教版八年级英语下册课件Unit4 why don't you talk to your parents单元总结.ppt

1、 单元语法聚焦四单元语法聚焦四 语法点击语法点击 状语从句状语从句 本单元的语法是状语从句本单元的语法是状语从句，涉及的状语从句有涉及的状语从句有untiluntil引导的引导的 时间状语从句时间状语从句、soso thatthat引导的目的状语从句以及引导的目的状语从句以及althoughalthough引导引导 的让步状语从句的让步状语从句。具体如下：具体如下： 1 1untiluntil引导的时间状语从句引导的时间状语从句 untiluntil是连词是连词，意为意为“直到直到为止为止”。如：如： TheThe teacherteacher keptkept onon askingaski

2、ng thethe studentsstudents questionsquestions untiluntil thethe bellbell rangrang. . 老师反复向学生提问老师反复向学生提问，直到下课铃响直到下课铃响。 拓展拓展 untiluntil和肯定句以及否定句的搭配：和肯定句以及否定句的搭配： 单元语法聚焦四单元语法聚焦四 用于肯定句中，表示“直到用于肯定句中，表示“直到为为 止”，主句的动词一般是延续性动词，止”，主句的动词一般是延续性动词， 它所表示的动作延续到它所表示的动作延续到until/tilluntil/till所所 表示的时间为止。表示的时间为止。3 3

3、He waits until/till the He waits until/till the children are asleep. children are asleep. 他一直等到他一直等到 孩子们睡着。孩子们睡着。 用于否定句中，表示“在用于否定句中，表示“在以前；以前； 直到直到才”，主句的动词一般是非才”，主句的动词一般是非 延续性的，它所表示的动作直到延续性的，它所表示的动作直到 until/till until/till 所表示的时间才发生。所表示的时间才发生。 He didnt arrive until/till the He didnt arrive until/til

4、l the game had begun. game had begun. 直到比赛开始他直到比赛开始他 才到。才到。 单元语法聚焦四单元语法聚焦四 2.so that2.so that引导的目的状语从句引导的目的状语从句 so that so that 是连词，意为“以便；为了”，可引导目的状语是连词，意为“以便；为了”，可引导目的状语 从句，从句，so thatso that引导的从句只能放在主句之后，从句中常用引导的从句只能放在主句之后，从句中常用can, can, could, may, mightcould, may, might等情态动词。如：等情态动词。如： Please say

5、 it in a loud voice so that everyone can Please say it in a loud voice so that everyone can hear it. hear it. 请大声说，以便大家都能听见。请大声说，以便大家都能听见。 拓展拓展 sothat sothat意为“如此意为“如此以至于以至于”，soso后接后接 形容词或副词原级。如：形容词或副词原级。如： The box is so heavy that we cant carry it. The box is so heavy that we cant carry it. 这个箱子太重了

6、，这个箱子太重了， 我们搬不动它。我们搬不动它。 单元语法聚焦四单元语法聚焦四 3 3althoughalthough引导的让步状语从句引导的让步状语从句 althoughalthough作连词，意为“尽管；虽然”，同作连词，意为“尽管；虽然”，同though, even though, even though, even ifthough, even if，用来引导让步状语从句。如：，用来引导让步状语从句。如：Although my Although my car is very old, it still runs car is very old, it still runs very w

7、ell. very well. 虽然我的小汽车很旧，但跑起来虽然我的小汽车很旧，但跑起来 挺不错。挺不错。 注意注意 句中如果有句中如果有although, though, even thoughalthough, though, even though，则，则 不能再使用不能再使用butbut。 单元语法聚焦四单元语法聚焦四 实战演练实战演练 ( ( )1. )1. 20142014台州台州My mother prefers to take a bus My mother prefers to take a bus to her office_she has a car of her own

8、.to her office_she has a car of her own. A. ifA. if B. becauseB. because C. although D. untilC. although D. until 解析解析 C C 本题考查连词的用法。句意为“我妈妈更愿意本题考查连词的用法。句意为“我妈妈更愿意 乘坐公共汽车去她的办公室，尽管她有自己的汽车”，结合句乘坐公共汽车去她的办公室，尽管她有自己的汽车”，结合句 意可知符合题意的词是意可知符合题意的词是althoughalthough，althoughalthough引导让步状语从句。引导让步状语从句。 单元语法聚焦四单元

9、语法聚焦四 ( ( )2.It was _ fine a day yesterday )2.It was _ fine a day yesterday _ we all went out for a picnic._ we all went out for a picnic. A Aas; as Bas; as Bso; asso; as C Ctoo; to Dtoo; to Dso; thatso; that 解析解析 D 单元语法聚焦四单元语法聚焦四 ( ( )3. )3. 20142014黄石黄石The students cant go The students cant go hom

10、e_they finish cleaning the classroom, for home_they finish cleaning the classroom, for its their duty.its their duty. A. when B. sinceA. when B. since C. if D. untilC. if D. until 解析解析 D 本题考查连词的用法。句意为“学生们直到打本题考查连词的用法。句意为“学生们直到打 扫完教室才能回家，因为这是他们的职责”，根据扫完教室才能回家，因为这是他们的职责”，根据notuntil 的固定搭配可知答案为的固定搭配可知答案

11、为D。 单元语法聚焦四单元语法聚焦四 ( ( )4.You have to leave now _ you can )4.You have to leave now _ you can catch the early bus.catch the early bus. A. so that B. as soon asA. so that B. as soon as C. because D. if C. because D. if 解析解析 A A 句意为“你现在必须离开了，为的是能够赶上句意为“你现在必须离开了，为的是能够赶上 公共汽车”，故答案为公共汽车”，故答案为A A。 单元语法聚焦四单

12、元语法聚焦四 ( ( )5.Please hold on to your dream_ one )5.Please hold on to your dream_ one day it comes true. day it comes true. A. if B. untilA. if B. until C. unless D. though C. unless D. though ( ( )6.Jim is always so busy_ he has )6.Jim is always so busy_ he has little time for his family.little time

13、 for his family. A Aif Bif Buntiluntil C Cthat Dthat Dwhichwhich B C 单元语法聚焦四单元语法聚焦四 ( ( )7._ it is very late)7._ it is very late，_ my _ my mother is still at work.mother is still at work. A AAlthough; butAlthough; but B BAlthough; andAlthough; and C CAlthough; /Although; / D DAlthough; orAlthough; or ( ( )8.Einstein was not able to return to his )8.Einstein was not able to return to his homeland_ the war was over.homeland_ the war was over. A Asince Bsince Bso so C Cuntil Duntil Dthat that C C