江苏省徐州市王杰中学高中英语 unit1 Grammar and usage学案 新人教版必修2.doc

江苏省徐州市王杰中学高一英语必修二unit1 grammar and usage学案learning aims:1. learn how to form and use the present perfect tense.2. understand when the present perfect continuous tense is used in sentences.difficult &important points:learn to use the two tenses correctly一 step 1 lead-in1. go over the news story on page 2 and find the sentences using the present perfect tense..5.6.2. please explain why the tense is used in these sentences.step 2 points 1-6 1. justin _(disappear), so kelly is very sad.2. i_(not see)justin since last friday night.3. we _ (study) english for about five years.4. they _ (live) in the south since their daughter was born.5. i _ (read) your article three times. its well written.6. eric _ just _ (go) back to his hometown.7. the student _ (finish) her homework already.8. i _(not hear) anything from him yet.9.this/it is the first/second time(that) he _(see) the film.10.in the past five years great changes _(take ) place in my hometown.step 3.practice read the diary entry and then complete it using the correct forms of the verbs in brackets.step 4.present perfect continuous tense the form : revise the sentence: 回家之后我一直睡不好觉。译：example: kelly: sorry im late. have you been waiting long? mavis: yes. ive been waiting for an hour.step 5.pratice1.the man started working in the field half an hour ago. he is still working now.the man _ (work) in the field for half an hour.2. i am really tired. i_(paint) the living room all day and still need one more hour.3.lucy _ (consider) going back to his company since days ago but she hasnt made her final decision.4.the man _ (skate) this morning.step6. test1.when mark opened the door, he saw a woman standing there. he _(never see) her before. 2. it is the second time that i _ (be) in shanghai. it is ten years since i left it last time. 3. he said he would write last time but i _(never hear) from him since then. 4. lucy _ (consider) going back to his company since days ago but she hasnt made her final decision.5. i am really tired. i_(paint) the living room all day and still need one more hour.6. she was doing an important experiment when i found her and she_(not finish) it.7. every means _(try) up till now without any result. 8.do you know our town? _no, this is the first time i _( be) here.9._has tom finished his composition yet? _i have no idea; he _(write) it this morning.10.the price _( increase) recently, but i doubt whether it will remain do.multiple-choice1.in the past few years there _ great changes in our town.a. is b. were c. have been d. will be2.up to now, the program _ thousands of children who would otherwise have died.a. would save b. saves d. had saved d. has saved3.the coffee is wonderful ! it doesnt taste like anything i _before.a. was having b. have c. have ever had d. had ever had4.-why, jack, you look so tired! _ well, i _ the house and i must finish the work tomorrow.a. was painting b. will be painting c. have painted d. have been painting5._have you been to our school?_ of course, i_ your school three times.a. have been visited b. visited c. have visited d. had visited6.progress _ so far very good and we are sure that the work will be finished on time.a. was b. had been c. has been d. will be7.i have to see the doctor because i _ a lot lately. a. have been coughing b. had cough c. coughed d. cough8._would you like another cake? _another cake ? i_ my first one yet.a. havent had b. hadnt had c. didnt have d. dont have9._why does the lake smell terrible? _ because large quantities of water _.a. have polluted b. is being polluted c. has been polluted d. have been polluted10.his sister left home in 1998, and _since. a. had not been heard of b. has not been heard of c. had not heard of d. has not heard of11._have you thought of a topic for your article yet ? _no, i_ a lot about it ,but i havent decided.a. will think b. have been thinkingc. had thought d. am thinking12.when you are home ,give a call to let me know you _ safely. a. are arriving b. have arrived c. had arrived d. will arrive13.im tired out . i _ all afternoon and i dont seem to have fi