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There is some juice in the fridge.
There is some milk in the fridge.
不可数名词前也可用some修饰。但be动词要用is.
There are four potatoes in the fridge.
There are three tomatoes in the fridge.
Tip:以字母o?结尾的可数名词变复数，在末尾+es.
potato → potatoes
tomato → tomatoes
Where are they?
What are Liu Tao’s parents doing in the kitchen?
Is his mother cooking meat?
Is he looking for some juice ?
Yes, he is.
Is he looking for some juice ?
Is she cooking meat?
Yes,he is.
No,he isn’t.
Yes,she is.
No,she isn’t.
Try to read
Are you cooking dinner ?
Yes,I am.
No,I’m not.
Are they cooking meat with potatoes ?
Yes,they are.
No,they aren’t.
现在进行时的一般疑问句构成:
be（is/am/are）+主语+现在分词
Try to summary
当主语是第三人称时，提问时开头用Is,并用Is作答;