51talk????_????????_??

[wus2wuaw]

51talk????_????????_?? 51talk???? ???? 1?????He is Fred's best friend.?-'s? ??2??????????????Alfredo works.?-s? ??3???????Fred worked.?-ed??????????? ??4???????????Fred is working.?-ing????????????????????????????????running? ??5??????The car was stolen.?-en??Fred has talked to the police.?-ed??????????? ??6?????Working is good for the soul.?-ing? ??7???????Fred has two blue eyes.?-s?????????????s,sh,x,ch????-es??dishes? ??8?????????Fred is smarter than Rick.?-er???????-er???????”?more??"more difficult"? ??9?????????Fred has the fastest car.?-est???????-est?????????most??"the most difficult"? ??????????SVO????????????????????????????????????O SV???????S?Subject?????V?Verbal phrase?????O?Object????? ??????????????????????????????????????????? ???????????????????? ???????????????????? ?????????????????????? ??????????????????????? ?????????????????? ?????????????????? ????????????????????????? ??????????????????????????????????? ???????????????????????????? ????????????????????? ????? ???????????????????????——??????????????? ?????????????????????????????????????????????? ?1?????? ?????????do???? ?????????does????????????? ????????????????? ?????????don‘t????????? ????????Do???????????? ???????Yes?? ???do? ???????No?????don't. ???????????+??????? ?2?????? ???be??????????? ??was?were?not????????didn‘t????????? ??was?were?????????do????did??????????? ?3?????? ???am?are?is?going to?do ??will?shall?do ??am/is/are/about to + do ??am/is/are to + do ???????????? ??be going to +???? ??be +???,be to+????,be about to ????? ??be able to +??? ??be about to+???? (4)????? ???be?was?were?going to+???? ??be?was?were?about to+???? ??be?was?were?to+???? ????????+be?was?were?going to+?????. ????????+be?was?were?not going to+?????. ??????Be?Was?Were?+??+going to+?????? ????????+would?should?+?????. ????????+would?should?not+?????. ??????Would?Should?+??+?????? (5)????? ?????+be+??ing???????? ??????+am+doing+sth ??????+are+doing +sth ??????+is+doing+sth (6)????? ?????????+was/were+doing+?? ????????+was/were+not+doing+?? ???????????Was/Were+??+doing+?? ???Yes,I was./No,I wasn't. ?????????????+was/were+??+doing+?? (7)????? ?????be????+???? (8)??????? ???should(would)+be+???? (9)????? ??????????+have/has+????(done) ?????????+have/has+????+?? ?????????+have/has+not+????+?? ?????????Have/Has+??+????+?? ??????????????+??????have/has+??+????+?? (10)????? ??????????+had+????(done) ?????????+had+????+?? ?????????+had+not+????+?? ?????????Had+??+????+?? ???????Yes,??+had ???????No,??+hadn't ??????????????+??????had+??+????+??? ??????: ??? 1 ? by + ????????? ??I had finished reading the novel by nine o'clock last night. ??? 2 ? by the end of + ????????? ??We had learnt over two thousand English words by the end of last term. ??? 3 ? before + ????????? ??They had planted six hundred trees before last Wednesday. (11)????? ????shall?will+have+?????? ??before+?????by+???? ??before?by the time????????? (12)??????? ???should / would have done sth. (13)??????? ???have/has been +-ing ?? (14)??????? ???had been +-ing ?? (15)??????? ?????+ shall/will have been doing (16)????????? ???should+have been+?????????? would have been+?????????? 51Talk???????????????????????????????15?/??????????51Talk???????????????15?/?????????????????????????????????????????????????? ??“??”???? 51Talk????????????????????????????????????????