不定式的特殊句型Why not:
"Why not +动词原形"表达向某人提出建议,翻译为:"为什么不……?" "干吗不……?"
例如:
Why not take a holiday?
干吗不去度假?
let的用法:
1)当let后只有一个单音节动词,变被动语态时,可用不带to 的不定式。
They let the strange go.---> The strange was let go.
2)若let 后宾补较长时,let 通常不用被动语态,而用allow或permit 代替。
The nurse let me go to see my classmate in the hospital.
----> I was allowed / permitted to see my classmate in the hospital.
用助动词进行强调:
强调句还有一种类型,就是用助动词do (did,does) 强调谓语。
She does like this horse. 她的确喜欢这匹马。
Please do take care of yourself. 千万保重。