目录 Tenses 时态 1 Present simple and present contmuous 一般现在时和现在进行时 J’m holding my breath. 2 Past simple and past con.tinuous 一般过去时和过去进行时 He was driving on a dark night. 3 Ued yo and would used to和would的用法 They used to paysoldiers in salt. 4 Present perfect,past simple,present simple 现在完成时、一般过去时和一般现在时 Many famous people have studied at Harvard. 5 Present perfect simple and present perfect continuous 一般现在完成时和现在完成进行时 She's been living here for30years. 6 Past perfect simple and past perfect COntinuous 一般过去完成时和过去完成进行时 Scientists had been studying a hurricane. 7 Will andbe going to will和be going to的用法 What will the future be like? 8 Present continuous and present simple forfutureuse;future continuous 现在进行时和一般现在时表示将来含义;将来 进行时 We’llbeflying疗DmHongKongtoBangkok. 9 Futureperfectandotherfutureforms 将来完成时和其他将来形式 Will they all have gone? R1 Review:present,past and future forms 复习:现在、过去和将来形式 Modals情态动词 10 Modals of ability and obligation 1 表示能力和义务的情态动词1 Six astronauts can stay there. 11 Modals of ability and obligation 2 表示能力和义务的情态动词2 He should have given the dog a biscuit. 12 Possibility and certainty in the present andfuture 现在和将来时态下的可能性和确定性 Itmustbe3. 13 Possibility and certain哆in the past 过去时态下的可能性和确定性 It must a/ready have been there. 14 Requests,permission,offers,suggestions,
以下为对购买帮助不大的评价