Unit语法时态

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1、Unit 1 Grammar(一 ) 一般现在时 构成 主语+does /do / be (am is are) +其它用法：1. 表示经常习惯反复发生的动作，存在的状态。多与always often every day等连用2.客观事实 普遍真理 名言警句。在直接引语变为间接引语时，、时态需要做相应的调整(现在时需改为过去时态；过去时态改为完成时；过去完成时则保留原来的时态)但直接引语是客观真理名言警句时，时态不变.The earth moves around the sun and the moon moves around the earth, the teacher told me.

2、The teacher told me the earth moves around the sun and the moon moves around the earth。She said. We hope so. She said they hoped so.3.主句是一般将来时，时间条件和让步状语从句中用一般现在时表示一般将来时（主将从现） If it rains tomorrow , I will stay at home .4.表示按时刻表上规定好要发生的动作。常见的动词有 go come leave start begin take off 等，多用于车船的出发到达，官方规定的不容

3、易更改的时间表The train leaves at four thirty pm .(二) 现在进行时 构成 主语+am /is / are +doing +其它用法：1. 表示此时此刻正在进行的动作I am watching TV now .2. 表示现阶段正在发生的动作，此时此刻动作不一定正在进行He is writing a novel this month .3. 表示按计划安排近期发生的动作(表示将来)，常见的动词go come leave start begin take off He is leaving for Shanghai the day after tomorrow

4、.4. 与 always . constantly .forever 等连用，表示赞赏 .厌恶.抱怨等语气.He is always helping others .She is constantly changing her idea .(三) 一般将来时 构成主语+will/ shall + do+其它其他用法1.be going to +do a 打算计划做某事b 表示根据某种客观迹象表明会发生某事This is just what I am going to say.Look at the dark clouds in the sky . Its going to rain .2. w

5、ill +do a 打算做某事，表示主观意愿b 客观的将来c 临时的决定I will send her a bunch of flowers .Fish will die without water .3 用“be to+动词原形”表示。主要表示按计划或安排即将要发生的动作；有时也表示命令、禁止或可能性He is to leave for Beijing tomorrow. 他决定明天去北京。4 be about to动词原形，表示即将发生的动作，可以和 when连用 I was about to go swimming when my guide shouted at me and told

6、 me not to do so.注：该结构通常不与具体的时间状语连用：5 祈使句 + and/ or +主语 + will + doHurry up, or you will be late for class .现在进行和一般现在表示将来的区别：The museum opens at ten tomorrow. The train leaves at six tomorrow morningI know you are arriving next Sunday. The plane takes off at 10:10. That is , its leaving in ten minut

7、es.总结_练习题1 The house belongs to to my brother but he _ (not live) here any more .2 Every year many foreigners _(come ) to China to learn Chinese .3 Professor Smith , along with his students , _(work) on the work day and night .4 When l was a child , I hoped to live in the city I _(think) I would be

8、happy there .5 Yangshuo _(be ) really beautiful.6 “ What do you want to be ?” asked Mrs. Crawford . “ Oh , I _(be) president .” said the boy , with a smile .7-Do you think Mom and Dad _(be) late ?- No, Swiss Air is usually on time .8 - Oh, dear. I forgot the air tickets.- You _ ( always leave )somet

9、hing.9 Remember to send me a photo of us next time you _(write) to me.10 I _( play) ping-pong quite well, but I havent had time to play since the New Year.11 They wont buy new clothes because they _ (save)money to buy a new house.12 The traffic in our city is already good and it _ (get)even better.1

10、3 Dont bother to look for my dictionary - it _( turn up) some day.14 The plane _(leave) at 7:00 pm, so I have to be at the airport by 6:40 at the latest.15 I used to drink a lot of tea but these days I _ (prefer)coffee.16 - Look at the black clouds. It _(rain) soon.- Sure. If only we hadnt come out.

11、17 When he was alive, the old scientist used to say that knowledge _( come) from practice and he gained his experience by doing a lot of practical work.18 _(leave) it with me and Ill see what I can do.19 It is when the plane _(take off) that youd better find out at the booking office.语法填空One morning

12、, I was waiting at the bus stop, worried about _ (be) late for school. There were many people waiting at the bus stop, _some of them looked very anxious and _ (disappoint) . when the bus finally came, we all hurried on board. I got a place next_ the window, so I had a good view of the sidewalk. A bo

13、y on a bike _ (catch ) my attention. He was riding beside the bus and waving his arms. I heard a passenger behind me shouting to the driver, but he refused _ (stop) until we reached the next stop. Still, the boy kept_ (ride). He was carrying something over his shoulder and shouting. Finally, when we

14、 came to the next stop, the boy ran up the door of the bus. I heard an excited conversation. Then the driver stood up and asked_ anyone lose a suitcase at the last stop” A woman on the bus shouted, “Oh, dear! Its _ ( I )”. She pushed her way to the driver and took the suitcase thankfully, Five other

15、s on the bus began talking about what the boy had done and the crowd of strangers_ (sudden) became friendly to one another.短文改错My dream school starts at 8:30 a.m. and ends at 3:30 p.m. They are three lessons in the morning and two in the afternoon. We didnt need to do so many homework. Therefore, we

16、 have more time with after-school activities. For example, we can do reading for one and half hour and play sports for one hour every day.My dream school look like a big garden. There are all kinds of the flowers and trees around the classroom buildings. We can lie on the grass for a rest, or sat by the lake listening music. The teachers here are kind and helpfully. They are not only our teachers but also our friends.