【正文】
le , as 引導(dǎo)時間狀語從句 時間點(diǎn) 段時間 區(qū) 別When 主從同時;先后While 主從同時 對比As 主從同時(一邊、一邊)It was raining when we arrived.My mother came in when I was doing my homework.While /when I was doing my homework, my mother came in.I am safe while I am here.He hurried home, looking behind as he went. As I left the house, I forgot the key.主從句時態(tài) Will you please bring me your book when you e here tomorrow? I will go home when I have finished my work .When / while 連詞引導(dǎo)并列句Was/ were about to do …Was /were going to do ….Was/were on one’s way…Was .were on the point of doing…. When ….Was/were doing…. (“這時” 表同時)Had done … Jasmine was holidaying with her family in a wildlife park when she was bitten on the leg by a lion.…….while …….(“然而” 表反比)I do every single bit of housework while my husband Bob just does the dishes now and then.before 引導(dǎo)時間狀語從句1)“還沒等”(謂語不用否定式)Before they got to the bus stop, the bus had gone.2) “….. (之后)才/就” It was eveni