2. 情态动词
“should” “ought to” “must” 的用法
我们使用“should” “should not” “ought to”
“ought not to”来提出建议并告诉人们需要做的最
好的或合适的事情。
我们使用“must”告诉人们做某事有必要或很重要。语气比较强。我们使用 “must not”
来告
诉人们不做某事有必要或很重要。
e.g. 用下列所给的单词组成意思完整的句子
1) clean, ought, the, you, a, to, once, week, cage,
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2) must, out,
take, dog, more, you, often, your,
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3) every, you,
cat, should, your, brush, day
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4) not, feed,
the, you, at, ought, dog, table, the, to
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5) must, give,
you, not, much, them, food, too
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