三级公共英语语法重点ppt课件.ppt

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1、采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 1谓语动词与主语一致。Together with, with, Along with, as well as, rather than The captain, as well as the other players, was tired. John, along with his brothers, is going to a dinner party tonight.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋

2、转，以保证切口面的圆度，保持熔接部位干净无污物 I wish that 从句主语 + were Did Would Could Had done I wish I were as tall as you. 我希望和你一样高。 （had + 过去分词） 采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 order, suggest, propose, require, demand, request, insist, command, insist + (should) do suggestion, propo

3、sal, idea, plan, order, advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。 采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 It is demanded / necessary / a pity + that结构中的主语从句的谓语动词要用should 加动词原形， should 可省略。 采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 Be 的单复数通常取决

4、于紧跟其后的名词单复数。 There is a book, two pens and three pencils on the desk.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 Not only + 名词+but also +名词作主语的结构中，谓语动词与but also 后的名词的数保持一致。 Not only his wife but also his children have arrived.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切

5、口面的圆度，保持熔接部位干净无污物Either or 和neither nor 作主语的结构中，动词的单复数取决于or或nor后面的名词单复数。如：Either my father or my brothers are coming.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 从属连词 as if /as though 好像 You look as if /as though you are going to cry. as 以 方式 He did it as I had told him. You c

6、an go out as long as you promise to be back before 11 oclock.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 Even if / even though 即使 Even if they offered to pay, we wouldnt accept any money from them. Hardly when 刚一就 I had hardly got home, when it began to rain. Hardly had I got

7、 home, when it began to rains.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 No sooner than 刚一就 We had no sooner sat down than we found it was time to go. No sooner had we sat down than we found it was time to go. 采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无

8、污物 Now that : since Now that you are grown up, you must stop this childish behavior. So as 像一样 否定句 This room is not so large as that one. So far as 就 So far as I know, he will be away for three weeks.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 So long as 只要 条件 You may borrow

9、the book so long as you keep it clean.采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 “would rather.than.”句式，意思是“宁愿而不愿”，表示主观愿望，即在两者之中选择其一。wouldrather than Shed rather die than lose the children. 她宁愿死也不愿失去孩子们。 I would rather watch TV at home than go to the cinema. 采用PP管及配件：根据给水设计图

10、配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 would rather+从句，是一个常用的虚拟语气句型 Would rather+从句,谓语一般用过去时来表示现在或将来。其意为“宁愿,还是 好些”“一个人宁愿另一个人做某事”。引导从句的that常省略。在谈到过去的动作时，谓语则用过去完成时。 采用PP管及配件：根据给水设计图配置好PP管及配件，用管件在管材垂直角切断管材，边剪边旋转，以保证切口面的圆度，保持熔接部位干净无污物 John wants to see me today. I would rather he came to tomorrow than today. 约翰今天想去看我。我宁愿他明天来看我而不是今天。(句中came不是表示过去而是表示将来)