算算你有多久没有出去玩啦？

　　今天我们来看看

　　新概念二第4课中的TIM

　　为自己制定了怎样的澳洲之旅呢？

　　I have just received a letter from my brother，Tim. He is in Australia. He has been there for six months.Tim is anengineer.He is working for a big firm and he has already visited a great numberof different places in Australia.He has just bought an Australian car and hasgone to Alice springs，a small town in the centre ofAustralia.He will soon visit Darwin.From there，he willfly to Perth.My brother has never been abroad before，sohe is finding this trip very exciting.

　　ONE 现在完成时1

　　文中例句

　　I have just received a letter from my brother，Tim.我刚刚收到弟弟蒂姆的来信

　　语法解析

　　have received， 现在完成时。

　　表示过去某动作在现在的结果，强调现在的状态。

　　过去动作：我收到了信

　　结果：我了解了Jim的现状，由此引出下文。

　　更多解释

　　have/has just done，表示刚做完某事。

　　他们刚到：They have just arrived.

　　他们刚走：They have just gone.

　　我刚吃完晚饭：I have just had dinner.

　　have/has already done， 已经做完某事

　　他已经去过澳大利亚的不少地方了：He has already visited agreat number of different places in Australia.

　　我们已经见过了：We have already met.

　　他们已经上床睡觉了：They have already gone to bed.

　　TWO 现在完成时2

　　文中例句

　　He has been there for six months. 他在那儿已经住了6个月了.

　　语法解析

　　现在完成时，表示从过去开始持续到现在的动作，强调动作的持续时间。

　　“在那里” 动词原形：be there，

　　放在完成时结构中：have been there

　　更多例句

　　He has worked her for 3 years.

　　他已经在这里工作三年了

　　I have lived here for 20 years.

　　我已经在这儿住了二十年了

　　THREE 现在完成时3

　　文中例句

　　My brother has never been abroad before，  so he is finding this tripvery exciting.

　　我弟弟以前从未出过国，因此，他觉得这次旅行非常激动人心。

　　语法解析

　　现在完成时，用来表示人生经历。

　　I have been to Canada but I haven’t been to the United States.

　　我去过加拿大，但没去过美国：

　　Have you read this book？

　　Yes， I’ve read it twice.

　　-你看过这本书吗？

　　- 是的，看过两次。

　　句中其他语法点

　　find，“发现”、“发觉”

　　固定搭配：find + sth. + adj.

　　I find the film very interesting.

　　我觉得这电影很有趣。

　　She found Tom's room very dirty.

　　她发现汤姆的房间非常脏。

　　She has already found herself wrong.

　　她已经发现自己错了。

　　FOUR 现在完成时4

　　文中例句

　　He has gone to Alice Spring.

　　他现在去了澳大利亚中部的小镇艾利斯斯普林斯.

　　语法解析

　　Have/has gone to ... 去了某地，人在该地。

　　Have/has been to... 去过某地，人已离开该地。

　　语法对比

　　1) 我找不到Susan了，她去哪里了？

　　I can’t find Susan.Where has she gone？

　　2) 嗨！Susan！我刚刚在找你，你去哪里了？

　　Hello， Susan！ I was looking for you. Where have you been？

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