这三句里for基本都是“为了”的意思。 1.) I got this present for you 我为你准备了这个礼物。 2.) She studied very hard for her exams. 她为考试学习得非常努力。 3.) This essay is for my Chinese class. 此短文是为我中文课准备的。 --------------- 'would have done' 的意思是本想做某事（但没有做成）。 1.) I would have gone to your house, but it was snowing too hard. 我本想去你家的，但雪下得太大了。 2.) He would have joined the swimming team, but he didn't have enough time. 他本想加入游泳队的，但他没有足够的时间

for 和 would have 根据句意，意思也不同。 1.) I got this present for you ------------for:给 2.) She studied very hard for her exams. ------------for:为了 3.) This essay is for my Chinese class. ------------for:为……而准备 1.) I would have gone to your house, but it was snowing too hard. --------------本来要做……但没有做 2.) He would have joined the swimming team, but he didn't have enough time. ----------------本来要做……但没有做

介词的使用.还是多练习口语.一起练习?

1.) I got this present for you --->我為你準備了這個禮物。 2.) She studied very hard for her exams. --->她為了考試而非常努力地唸書。 3.) This essay is for my Chinese class. --->這篇散文是為了中文課用的。 --------------- 1.) I would have gone to your house, but it was snowing too hard. --->我本來想去你家，但是雪下得太大了。 2.) He would have joined the swimming team, but he didn't have enough time. --->他本來想參加游泳隊的，但是他沒有足夠的時間。 I hope it would help to you. 我希望有幫助到妳。 :D

1.我为你准备了这礼物。 2.她学习很刻苦为了通过这次考试。 3.她为这次中文课准备了一篇散文。 for=为了 ----------------------- 1.我原计划去你家，但雪下得太大了。 2.她想参加游泳队，但时间太少了。 would have=想、计划