高中英语 模块二 unit1 Grammar and usage 1课件 译林牛津版必修2

1、Grammar and usage,Unit,1,Present perfect tense & Present perfect continuous tense,Present perfect tense,Step 1 Lead-in Go over the news story on Page 2 and find the sentences using the present perfect tense. Please explain why the tense is used in these sentences.,The disappearance of Justin_ (make)

2、 Kelly very unhappy.,has made,1. We use the present perfect tense to talk about things that happened in the recent past, but are connected to the present.,Step 2 Points 1-6, I _ (not see) Justin since last Friday night.,have not seen,2. We also use the present perfect tense to talk about something t

3、hat started in the past, and is still happening now.,3.We use the present perfect tense when the exact time of an action is not clear or important. We use it with time expressions such as: already ever for just lately never recently since yet,Exercise: complete the following sentences with the prope

4、r tense: (1) We _(study) English for about five years. (2) They _(live ) in the south since their daughter was born. (3) I _(read) your article three times. Its well written. (4) The student _ (finish) her homework already. (5) Eric _ just _ (go) back to his hometown.,have studied,have lived,have re

5、ad,have finished,has gone,We use already for affirmative statements and yet for negative statements. We use for + a period of time and since + a point in time.,4. We use the present perfect tense to talk about actions that were completed only a short time ago.,The police have just finished searching

6、 the areas.,5. We can also use the present perfect tense for repeated actions, that is, we use the present perfect tense with the time expressions once / twice / three times 6. Form: have / has + the past participle of the verb,Step 3 Read the diary entry and then complete it using the correct forms

7、 of the verbs in brackets.,Answers: (2) saw (3) has visited (4) loves (5) hasnt visited (6) has swum (7) has never met (8) has dived (9) has found (10) hasnt found (11) Has, been,Present perfect continuous tense,1. Form: have / has been + the present participle of the verb.,2.We use the present perf

8、ect continuous tense to talk about actions that started in the past and are still continuing. I have not been sleeping well since I returned home. Past _ Present,not being able to sleep well,I returned home.,Im still not sleeping well.,3. We also use the present perfect continuous tense to talk abou

9、t actions that have just finished but are still connected to the present in some way. Kelly: Sorry Im late. Have you been waiting long? Mavis: Yes. Ive been waiting for an hour.,past _ One hour ago Present,Mavis started waiting for Kelly.,Kelly arrives.,have been observing,have been talking,have been taking,have