Lesson 4 An exciting trip
一场激动人心的旅行
First listen and answer the question
听录音回答问题
Why is Time finding this trip exciting?
为什么蒂姆发现这趟旅行激动人心？
I have just received a letter from my brother,Tim.He is in Australia.He has been there for six months.Tim is an engineer.He is working for a big firm he has already visited a great number of different places in Australia.He has just bought an Australia car and has gone to Alice Springs,a small town in the centre of Australia.He will soon visit Darwin.From there,he will fly to Path.My brother has never been abroad before.So he is finding this trip very exciting.
我刚刚收到蒂姆的来信，他正在澳大利亚。他在那已经住了6个月了。蒂姆是个工程师，正在为一家大公司工作，并且已经去过澳大利亚的不少地方了。他刚买一辆澳大利亚小汽车，现在去了澳大利亚中部的小镇艾利斯斯普林斯。他不久还将到达尔文去，从那里，他再飞往珀斯。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。
语法点：
现在完成时态是由“have/has+过去分词”构成，主要有两个含义： 1.表示动作发生在过去，但与现在的情况有联系，有时无时间状语，有时和一些表示不确定的过去时间状语连用，如：many times，just，yet，ever，never，already，before，so far, by now等连用。 2.表示从过去某一时间开始一直延续到现在并还可能继续延续下去的动作，用于延续性动词，且句中常带有表示一段时间的时间状语，如：for two months, so far等。
注意斜体词-文中是现在完成时的句式有：
I have just received a letter from my brother,Tim.
He has been there for six months .
He has just bought an Australia car and has gone to Alice Springs
he has already visited a great number of different places in Australia.
My brother has never been abroad before.
其他的例子：
He has retired now .他现在已经退休了。（过去发生一直延续到现在还继续延续下去）
Have you ever been to Australia?你去过澳大利亚吗？
Have you read any good book lately ?你最近有没有读到好书？
I haven’t been very successful so far ?至今我不十分成功。
The train has not arrived yet 。火车还没有到。