新概念第一册61~66情态动词must;look,feel+形容词的用法,时间表达法
情态动词must+do
must:必须
mustn‘t:不允许,不可以
例句:
陈述句:The boy must go to school
否定句:And he mustn’t eat rich food.拓展rich food 大鱼大肉
疑问句:Must he stay in bed?
Don‘t 和 Mustn't的区别
Don’t take any aspirins!(口语化,口气更缓和)
You mustn't take any aspirins! (语气上,更严厉。书面表达更多)
时间表达法:
一般将来时固定搭配:be going to +动词原形
例句:what are you going to do this evening?
You mustn‘t come home late.
You must be home at half past ten. 具体时间点介词at,10点半
You mustn’t come home after a quarter past eleven.11点15分,quarter有4分之一的意思,一小时的4分之一就是15min,past 过的意思,超过
You mustn’t come home after a quarter to eleven. 还差15分钟到11点,用to,这里有“到”的意思
介词小知识:
When 's your birthday?
It's on 18th March. 我生日在5月18日用介词 on
My birthday is in March. 我生日在5月,月份用in