42. Going on holiday.

1. 单词部分

mess n. 杂乱， 凌乱

This room is a mess. 这个房间里很乱。

也可以这样用 This room is very untidy.

pack 打包，装箱

pack the books into the box.  把书装进箱子

pack the box / case.

suitcase n. 手提箱

suit 西服   case 箱子

leave v. 离开    left , left

left n. 左

already adv 已经

al + realy

2. 课文讲解

Do you want to have breakfast with us ?

I have already had lunch.

I have just had a cup.

Excuse  me, this room is very untidy.

We are going to leave ,tomorrow.

Aren't you lucky.   真幸运

Were did you go!  你去哪了呢？

3. 语法讲解

现在完成时  -> 主 + 助动词 + 动词过去分词 + 其它成分

主 + 动词 + 其它成分

在动词的前面，根据主语的情况用 have/has， 并且把动词变成过去分词

动词的过去分词  -> 动词的过去分词知识动词存在的一种形式。

不规则动词

go  went  gone

read  read  read

put   put   put

特殊情况下， 用特种过去式（现在完成时）

条件一 ： 说话的人主观上强调过去的动作或者状态的延续性，且延续到现在。

我学过英语。

He studied Egnlish.

我学英语10年了。

He have studied English for ten years.

我曾经住在这里。

I lived here.

我已经在这住了八年了。

I have lived here for eight years.

前天下雨了。

It rained the day before yesterday.

这场雨已经下了四个小时。

The rain has lasted for four hours.

二十年前我当过老师。

I was a teacher twenty years ago.

我当老师10年了。

I have been

条件二： 过去发生的动作或状态对现在产生的影响或结果。

言之过去，意在当下。

你打算什么时候写作业啊？

What are you going to do your homework?

我已经写完啦！

I have finished it！

我上周写完的。

I finished it last week.

我想赶去伦敦的火车。

I want to catch the train to London.

对不起， 那趟或者已经开走了。

Sorry, the train has left.

四点钟开走的。

It left at the four o'clock.

She has arrived home.

She arrived home at six o'clock.

一个表示很具体的时间状语往往不能用在现在完成时的句子中。

4. 单词句型讲解

I have finished my work.

Have you finished your work?

I haven't finished my work.

What have you finished?

already 已经

I have already finished my work.

比预想的时间或可能发生的时间早。

I hace already seen this movie.

5. 知识拓展

Have an apple please.

No thank you .

I've already had one.

Have some tea please.

No.Thank you.

I've already had some.

Have you had any coffee?

I haven't had any coffee.

I've just had some tea.

He hasn't had any beer.

He's just had some water.