[模拟演练]
Ⅰ.用情态动词或其否定形式填空
1．—It's eight o'clock already. Jack________be here by now.
—Oh, he told me that he was going to see his dentist and wouldn't be back until ten.
【解析】 句意：——8点钟了。杰克现在应该到了。——哦，他告诉我他要去看牙医，在10点以前是不会回来的。should有“根据情理或常理推断某事将可能发生”之意。
【答案】 should
2．—Jack, take more clothes when going camping. It________be very cold in the mountains.
—Thank you, Mum. I will.
【解析】 句意：——杰克，去野营时要多加衣服。山上可能/一定很冷。——谢谢你，妈妈。我会的。can等可以用来表示客观可能性。
【答案】 can/must/may/might/could
