八年级下 Unit 91.hear of 听说 hear from 收到…的消息/来信2.take a ride 兜风3.end up 结束4.argue with sb. 与某人争吵5.roller coaster 过山车6.a flight attendant 一个机组乘务员7.in fact 事实上8.all over the world 全世界9.think about 考虑 think of 想起；认为10. rather than 宁可；而不是11. neither…nor… 既不…也不…12. three quarters of 四分之三13. for example 举个例子14. such as 例如15. on the one hand,… on the other hand,…. 一方面…，另一方面…16. be asleep 睡着（状态） fall asleep 睡着（动作）重点语法：1 现在完成进行时（1）结构：have/has + been + V.ing.（2）用法：表示从过去某一时刻开始，一直延续到现在且很有可能持续下去； I’ve been doing the cleaning all this morning. 表示从过去开始一直持续到现在的某一动作刚刚结束； You’re late again! I’ve been waiting here for an hour. 表示一个一直到说话时为止的一段时间内一再重复的动作。 I have been calling you several times in two days. (3) 时间状语：all the time/this morning, since morning, all night, this week/month, recently 等(1)对现在完成进行时的时间状语进行提问时使用 how long。How long have you been skating?I’ve been skating since I was seven years old. for 5 years old.2.现在完成进行时与现在完成时区别：现在完成进行时侧重于动作的持续、运行；而现在完成时强调动作的完成。如：I have written a letter to my father.（到现在信已写完）我给我的父亲写了一封信。I have been writing a letter to my father.（一直在写，现在还在写）我一直在给我的父亲写信。再看：I wrote a letter to my father. 我给我的父亲写过一封信。
