人教book3unit4

人教book3unit4内容摘要：

结束放映 返回导航页 These days， breaking traffic rules and littering are not unmon， causing serious harm to life and the environment. harm n. harmful adj. do /cause harm to sb =do (1) (2) There is no harm in doing sth. /It does no harm to do sth. 做某事是个好主意 (或没有坏处 ) (1) harmful (2) be harmful to sb./sth. 对某人 /某物有害 结束放映 返回导航页 in harmful 巧学巧练 (单句语法填空 ) ① If you want to solve the problem in this way， there is no harm ________ calling him. ② As we all know， a bad eating habit is ________(harm) to one’s health. (一句多译 ) 众所周知，过量喝酒对你的身体有害。 ① What is known to us is that drinking too much ______________________. ② It is known to us that drinking too much ____________________________. is harmful to your health does harm to your health 结束放映 返回导航页 As is known to us， there exists a generation gap between the young and the old. There exists/existed...某地有 …… ；存在 …… 众所周知，青年人和老年人之间存在着代沟。 There exists/existed...某地有 …… ；存在 …… 结束放映 返回导航页 existence was an existing problem for a long time exists existing 巧学巧练 (单句语法填空 ) ① As is known to us， China came into ________(exist) as an independent country in 1949. ② There ________a good way to solve the________problem in geography.(exist) ③ You can’t imagine what difficulty they have existing ________the money he is earning. (一句多译 ) (2020北京高考写作 )在我们学校自行车的存放是一个长久以来就存在的问题。 The parking place for bikes _________________ ______________________________in our school. on exist是不及物动词，没有被动语态，也不用于进行时态。 结束放映 返回导航页 When it is in my turn， I am too excited to speak. in turn 依次；轮流；反之；反过来 by turns 轮流；交替地 take turns to do sth. 轮流做某事 It is one’ s turn to do sth. 轮到某人做某事 It turns/turned out that... 结果 … 当轮到我时，我激动得都说不出话来了。 in one39。 s turn轮到某人；接着 扩展延伸 结束放映 返回导航页 in turn in turn creates more problems it is your turn 巧学巧练 (用 turn短语填空 ) ① Theory is based on practice and _______serves practice. ② As far as I know,____________to look after the children. ③ Class Three should be responsible for raising the red flag this week____________. (句式升级 ) People try to avoid public transportation delays by using their own cars， and this____________ ____________________(反过来造成更多的问题 )． →People try to avoid public transportation delays by using their own cars， __________________ ______________________(定语从句 )． in its turn which in turn creates more problems 结束放映 返回导航页 写出下面 pull短语的意义 (1)pull through __________________________ (2)pull in ___________________ (3)pull out__________________ (4)pull over__________________ (5)pull up ________________ 使从 …( 受伤 )中活下来。 渡过难关 进站，靠岸 离站，拔出，恢复健康 (使 )车辆停靠在路边 拔起；停车 They are pulling down those houses to make room for a new hotel. 扩展延伸 pull down 拆毁；摧毁 为了给新旅馆腾地，他们正在 拆除 那些房屋。 结束放映 返回导航页 pull through The train having pulled in pulled out 巧学巧练 (用 pull短语填空 ) ① Everyone was very concerned whether he would _________________or not. ② We waved as the train ________of the station. (句式升级 ) The train ____。