A)如果你不……，你就会…… If you don …， youll …
例︰If you don keep working hard, youll lose the chance.
如果你不坚持努力工作，你就会失去这次机会。
B) 如此 ……，以至于…… so … that …
例：At that moment, I was so upset that I wanted to give up.
当时，我非常伤心，最后都想放弃了。
9. 宾语从句
我认为，…… / 我认为……不 I think / I don think that …
我想知道是否…… I wonder whether …
例：He doesn think I should stop him joining the club.
他认为我不应该阻止他参加这个俱乐部。
10. Since + S + 过去式， S + 现在完成式。
例：Since he went to senior high school, he has worked very hard.
自从他上高中，他就一直很用功。
