外研版九年级英语下册总复习资料
it is important to eat _____ _______ right things,_____ _______, fruit , vegetables , and to _______ fast food or sweet things _________something very special –maybe just______ ____ ________.
15. 许多青少年通过吸烟和吸毒给健康造成的危害比别的危险更大,想一想它给你的家庭、朋友带来的影响吧,
more teenagers damage their health ___________smoking and taking drugs than ________ ______ _________. _______ __________ the effect ________ your family and friends,
16.当农民们在田野里劳动时,他们同时也在通过劳动保持健康,但如今大部分人都不再从事相同的体力劳动了。
when farmer were working in the fields, they were______ _________at the same time , but most people don’t do the same kind of ________ ___________ today .
四、重点语法
情态动词的用法归纳
在选择情态动词时我们必须从意思的表达和语境上考虑。先从意思表达方面对情态动词作一总结:
1)表“能力”。
当表示一个人能、会做某事时, 常用can ,could ,有时可以和be able to do sth ”进行转换。如:
my 5—year-old daughter ______ draw a beautiful picture in 5 minutes .
=my 5—year –old daughter___ _______ _______ draw a beautiful picture in 5 minutes.
2)表“可能性、猜测”
如表示某事肯定发生,用must表“一定、肯定”,如:
如表示某事可能要发生或不太可能发生,用“may, might, can ,could 等,表“可能”如:
如表示某事肯定不会发生,用“can’t”,表“肯定不是—”,如:
he ________ be at home , he has gone abroad .
it _________ be tom’s book , look , his name is on the cover .
he ________ stay in the office because the light is on now .
3)表“许可”或“征求对方许可”
如果是允许某人做某事,或征求对方的许可,可以用“may, might, can ,could”,
表“可以”
wen you are free , you ________ go fishing by the river .
----_____ i sit here ? ------sure , sit down please 。
4)表示“命令、禁止、不得不”
表示“命令、禁止、不得不”之类的含义时一般用must ,mustn’t ,have to 等,如:
you________ swim in this river , because it is too deep and dangerous .
you ________ be careful when you go across the street .
my brother is ill in bed ,so i ___________take care of him at home .
5)表示“没必要”
表示“没必要”不必做某事时,常用needn’t ,don’t have to ,或用“it isn’t necessary to do
sth ”或“there is no necessity to do sth “的句型。如:
you __________ worry about money , i can lend you in the time of need .