1)Therearethreereasonsforthis。
2)Thereasonsforthisareasfollows。
3)Thereasonforthisisobvious。
4)Thereasonforthisisnotfartoseek。
5)Thereasonforthisisthat…
6)Wehavegoodreasontobelievethat…
1)Ithasthefollowingadvantages。
5)Itisofgreatbenefittous。
1)Ithasmoredisadvantagesthanadvantages。
1)Somechangeshavetakenplaceinthepastfiveyears。
2)Agreatchangewillcertainlybeproducedintheworld'scommunications。
3)Thecomputerhasbroughtaboutmanychangesineducation。
1)Itisimportant(necessary，difficult，convenient,possible)forsb.todosth。
2)Wethinkitnecessarytodosth。
3)Itplaysanimportantroleinourlife。
1)Weshouldtakesomeeffectivemeasures。
2)Weshouldtryourbesttoovercome(conquer)thedifficulties。
3)Weshoulddoourutmostindoingsth。
4)Weshouldsolvetheproblemsthatweareconfronted(faced)with。
1)Wecannotignorethefactthat…
2)Noonecandenythefactthat…
3)Thereisnodenyingthefactthat…
4)Thisisaphenomenonthatmanypeopleareinterestedin.5)However，that'snotthecase。
2)IprefertoreadratherthanwatchTV。
3)Thereisastrikingcontrastbetweenthem。
1)Ithasincreased(decreased)from…to…
2)Thepopulationinthiscityhasnowincreased(decreased)to800，000.
3)TheoutputofJulyinthisfactoryincreasedby15%comparedwiththatofJanuary。
1)Peoplehave(take，adopt，assume)differentattitudestowardssth。
2)Peoplehavedifferentopinionsonthisproblem。
3)Peopletakedifferentviewsof(on)thequestion。
4)Somepeoplebelievethat…Othersarguethat…
