内容正文:
Unit 1 The Changing World
Topic 2 The population in developing countries is growing faster.
Section A
行业PPT模板http://www.1ppt.com/hangye/
学习目标
一、掌握以下单词:yet, probably, cinema, department等。
二、能够通过学习标志词just, already, yet, ever 和never,
继续掌握现在完成时的用法。
三、能发现并改正短文中的常见错误。
四、关注社会现象,关注人口问题。
Revision
1. A: you (make) your bed?
B: Yes.
2. I (water) the flowers already.
3. My mother (work) in the hospital
for twenty years.
4. A: Where’s Maria?
B: She to the library.
5. Lily Beijing twice.
Have
made
have
watered
has
worked
has
gone
has
to
been
1. According to the sentence meaning, fill in the blanks.
现在完成时的标志词
A: Have you ever jumped rope?
B: Yes. I have just jumped rope.
/ No. I have never jumped rope before.
chat online
go climbing
watch a movie in the open air
小结:just意为“刚刚;刚才”,ever意为“曾经”,never意为“从来没有”。这三个词通常位于助动词之后,行为动词之前。
Where have they been in the holiday?
Kangkang _____ ______ to an English
summer school.
Jane _____ ______ to Mount Huang.
They have already come back.
Maria _____ ______ to Cuba.
She has just come back.
has been
has been
has been
小结:already通常放在助动词之后,
行为动词之前,有时也放在句末。
Have you cleaned your room yet?
It’s very dirty. I haven’t cleaned it yet.
I have already cleaned it . It’s clean and tidy now.
小结:副词yet通常放在句______用于__________句和______句中。
一般疑问
否定
末
小结:含有already的肯定句变为否定句或疑问句时,要变already为yet.
现在完成时态中already, yet, just, never, ever用法区别
1. already :“已经”通常用于陈述句中
She has already found her bike.
2. yet用法
①yet可用于否定句,此时译为“还”
I haven’t found my ruler yet.
②也可以用于疑问句,译为“已经”
Have you found your ruler yet? 你已经找到尺子了吗?
3. just只用于陈述句意思是“刚才, 刚刚”
I have just received a letter.
4. never用于否定句译为“从不”
I’ve never been to Beijing.
5. ever用于疑问句译为“曾经”
Have you ever been to Beijing?
完成时态常见副词 just never ever already yet before
含义 刚刚 从不 曾经 已经 还(没) 以前
位置
句中 句中 句中 句中/末 句末 句末
句