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3. can 和 may
考试中主要测试can,may或could,might表示可能性的区别及对may构成的疑问句的回答。
时态 情态动词need 实义动词 need
现 You need (not) do You (don't) need to do
在
时 He need (not) do He needs (doesn't need) to do
过 You needed (didn't need) to do
去
时 He needed (didn't need) to do
将 You need (not) do You will (not) need to do
来
时 He need (not) do He will (not) need to do
句型 时态 动词
情态动词dare 实义动词 dare
肯定句 现在时 dare to 少用 dare/dares to do
过去时 dare to 少用 dared to do
否定句 现在时 daren't/dare not do do/does not dare (to) do
过去时 dared not do did not dare (to) do
疑问句 现在时 Dare he do? Do you/Does he dear (to) do?
过去时 Dared he do? Did he dare (to) do