15)肯定句变否定句及疑问句要变化的一些词
1. some变为 any。如:
There are some birds in the tree.→ There aren't any birds in the tree.
但是,若在表示请邀请、请求的句子中, some可以不变。如:
Would you like some orange juice?
与此相关的一些不定代词如 something, somebody等也要进行相应变化。
2. and变为 or。如:
I have a knife and a ruler.→ I don't have a knife or a ruler.
3. a lot of(= lots of)变为 many或 much。如:
They have a lot of friends.(可数名词)→ They don't have many friends.
There is lots of orange in the bottle.(不可数名词)
→ There isn't much orange in the bottle.
4. already变为 yet。如:
I have been there already.→ I haven't been there yet.