Unit4 Then and now
Words:
telephone
office
in the office
mobile phone
radio
listen to the radio
news
paper
read newspapers for news
看报纸获得新闻
e-book
watch TV
仍然
still
拼读
spell
使用
use
到处
anywhere
call people anywhere
use the telephone to call people
很久以前

long long ago
过去和现在
then and now
make friends
造句子
make a sentence
写信给…
write letters to…
write e-mails
全世界
all over the world
do some shopping
buy things from shops
向…外看
look out of…
继续
go on doing sth.
wait for
在网上
on the Internet
get angry
一般时态复习:
The Simple Present Tense
一般现在时
The Simple Past Tense 一般过去时
一般现在时
1）表示事物或人物的特征或状态。
eg. He is a student.
2）表示经常性或习惯性的动作。
eg. He usually gets up at 6:30 in the morning.
标志词:
often, usually, on Sunday/ weekends...
一般过去时
1）表示过去某个时间发生的动作或存在的状态。
eg. I got up at 6:30 yesterday. （动作）
I was at home last night. （状态）
2）表示过去经常性或习惯性发生的动作。
eg. He usually got up at 6:30 last year.
标志词：
① yesterday及相关短语
昨天上午/下午/晚上
yesterday morning/afternoon/evening
② “last + 时间状语”构成的短语
昨晚/上个月/去年春天/去年
last night/month/spring/year
③ “一段时间+ago”组成的短语
三天/四年以前
④ “介词+ 过去时间名词”组成的短语
在1999年 在2010年12月25号上午
on the morning of December 25th, 2010
three days ago/ four years ago
in 1999
一般时态的句型转换:
肯定句
否定句
一般疑问句
及回答
动词be一般现在时 一般过去时
He is a doctor.
He was a doctor.
Is he a doctor?
Was he a doctor?
Yes, he is.
/No, he isn't.
Yes, he was.
/No, he wasn't.
He isn't a doctor.
He wasn't a doctor.
(am, is, are)
(was, were）
He can play soccer.
情态动词一般现在时 一般过去时
He could play soccer.
He can't play soccer.
He couldn't play soccer.
Can he play soccer?
Could he play soccer?
Yes, he can.
/No, he can't.
Yes, he could.
/No, he could't.
(can)
(could）
行为动词一般现在时 一般过去时
He works here.
He worked here.
Does he work here?
Did he work here?
Yes, he does./ No, he doesn't.
Yes, he did./ No, he didn't.
He doesn’t work here.
He didn't work here.
(原形/三单)
(过去式)
一般现在时中，实义动词的用法：

主语是第一、二人称或第三人称复数时，谓语动词用原形；
否定句：在谓语动词前 don’t；
一般疑问句：从原形中提出do至句首；

主语是第三人称单数时，谓语动词用第三人称单数形式 (+s/es)；
否定句：在三单前加doesn’t，三单变原形；
一般疑问句：从三单中提出does至句首，三单变原形。
动词三单的变化：
1、一般动词后加s， 如： plays, works, makes
2、以 s, x, ch, sh, (o )结尾，后加es. 如：watches, goes
3、辅音字母+y结尾的单词,去y,加ies, 如：worries, studies
一般过去时中，实义动词的用法：

主语不论人称，谓语动词一律用过去式；
否定句：在过去式前 加didn’t, 过去式变原形；
一般疑问句：从过去式中提出did至句首, 过去式变原形；
规则动词的过去式变化规则
一般在词尾加- ed
play→played
以e结尾的，只加--d
以辅音字母+y 结尾的，变y为i ,再加- ed
以一个辅音字母结尾的重读闭音节，先双写这个辅音字母，再加-ed
1.现在的状态
2.经常的或习惯性的动作
1.过去某个时间存在的状态
2.过去经常或反复发生的动作
3.过去某个时间发生的动作
I get up at 6:00 every day.
He goes to school on foot.

His brother is ill now.
I got up at 6:30 yesterday.
He went to school by bike last year.
His brother was ill yesterday.
含有ＢＥ动词的句型
一般过去时表示过去时间内某人某物存在的状态，性质等．eg:

I was a teacher last year .
She was a singer last year .
They were happy last year .
一般现在时表示某人某物现在的状态，性质等．eg:

I am a teacher now.
She is a singer.
They are happy.
（用 last year 改写）
含实义动词的句型(主语是第一，二人称及第三人称复数）
一般现在时用来表示习惯性，
经常性发生的动作．eg:
I go to work by bus every day.
You watch TV every night.
We play basketball on weekends.
They have lessons every morning.
主语＋动词原形＋其他．
一般过去时用来表示在过去时间
里发生的动作．eg: 　　　　
I went to work by bus yesterday.
You watched TV last night.
We played basketball last weekend.
They had lessons two days ago.
主语＋动词过去式＋其他．
主语是第三人称单数（肯定句）
He goes to work by bus every day.
She watches TV every night.
Li Ming plays basketball on weekends.
It snows every winter.

主语＋动词三单＋其他．
He went to work by bus yesterday.
She watched TV last night.
Li Ming played basketball three days ago.
It snowed last winter.

主语＋动词过去式＋其他．
主语是第一，二人称及第三人称复数（否定句）
I do not go to work by bus every day.
You do not watch TV every night.
We do not play basketball on weekends.
They do not have lessons every morning.

主语＋do ＋ not + 动词原形 +其他
I did not go to work by bus yesterday.
You did not watch TV last night.
We did not play basketball last weekend.
They did not have lessons two days ago.

主语＋did + not+动词原形 ＋其他
主语是第三人称单数（否定句）
He does not go to work by bus every day.
She does not watch TV every night.
Li Ming does not play basketball on weekends.
It does not snow every winter.

主语＋does ＋ not+动词原形 +其他
He did not go to work by bus yesterday.
She did not watch TV last night.
Li Ming did not play basketball 3 days ago.
It did not snow last winter.

主语＋did ＋ not + 动词原形 +其他
I speak English.

2.We like maths.

3.They went swimming last Sunday.
4.He got up very early this morning.
5.The panda eats bamboo.
将下列句子改成否定句、一般疑问句并回答：
I don’t speak English.
Do you speak English? Yes, I do/ No ,I don’t.
We don’t like maths.
Do you like maths? Yes, we do/ No , we don’t.
They didn’t go swimming last Sunday.
Did they go swimming last Sunday? Yes ,they did.
He didn’t get up very early this morning.
Did he get up very early this morning? No, he didn’t.
The panda doesn’t eat bamboo.
Does the panda eat bamboo? Yes, it does/ No, it doesn’t.
时态
现在进行时：
一般现在时：
一般过去时：
现在正在进行的动作
经常或习惯性的动作或存在的状态。
过去某个时间或时间段发生的动作或存在的状态。
(The Present Continuous Tense)
(The Simple Present Tense)
(The Simple Past Tense)
各时态常用的信息词
现在进行时：
一般现在时:
一般过去时:
now , Look! Listen! at this time
Where is …? Don’t talk! It’s 8:00am.
always , usually, often, sometimes ,seldom,
never, every day, every… ,three times a day
last night, last…, two days ago, …ago,
in 1999, in +过去的年份,
just now =a moment ago,
yesterday, yesterday morning
改一般疑问句的方法：
①首先看有无be动词，如果有，将be动词提至句首。
②如果没有be动词，看原句的动词形式来决定提出
助动词do/does/did,并且行为动词要变为原形。
V-原形
V-s/es
V-ed(过去式)
+动词原形…?
改否定句的方法：
①首先看有无be动词，如果有，在be 动词后面加not.
②如果没有be 动词，看原句的动词形式来决定前面加
助动词do/does/did,并在助动词后加not,并且行为动词要还原。
主语+don’t/doesn’t/didn’t+动词原形
现在分词
的构成：
动词第三人称
单数的构成：
过去式
的构成：
①直接加-ing.
②以不发音的e 结尾，去e加-ing .
③重读辅元辅，双写尾字母加-ing.
①直接加-s.
②以s, x, ch, sh, o结尾加-es.
③以“辅音+y “结尾变y 为i再加-es.
①直接加-ed.
②以e结尾只加d.
③重读辅元辅，双写尾字母再加-ed.
④以“辅音+y”结尾变y 为i 再加-ed.
表格对比学习
be+v-ing
(现在分词）
在be 后加上not
Be提到句首
V -原形
V-三单
在行为v.前借用do ,does后加not，行为动词还原
Do,Does 提到句首，行为动词还原
V-ed
(过去式）
在行为v.前借用did后加not，行为动词还原
Did 提到句首，行为动词还原
判断下列信息词是属于哪种时态
last night
now
every day
Look!
yesterday
often
Listen!
two years ago
always
in 1897
three times a week
一般现在时
一般过去时
现在进行时
判断下列信息词是属于哪种时态
last night
now
every day
Look!
yesterday
often
Listen!
two years ago
always
in 1897
three times a week
一般现在时
一般过去时
现在进行时
用所给动词的适当形式填空。
1. Listen! Mary _________ ( sing) now.
2. A young man __________ (run) on the playground now.
3. My mother _________(watch) TV play every day.
4. Old Bush ________(visit) China again last month.
5. I ______ (play) sports every afternoon.
6. Look! Lucy and Lily ____________(read) books.
7. There _______(is) a football match yesterday afternoon.
8. Our class ______( go) to the zoo three days ago.
is singing
is running
watches
visited
play
are reading
was
went
Exercise
1.It (rain) hard now.
It (rain) quite often in March.
2.Where is she? She (show) the visitors around the city.
3. What Li Lei (do) last night?
4. My parents (work) five days a week.
5. There (be) three bottles of orange
on the table just now.
is raining
rains
is showing
did
do
works
were
then
now
could _____
can do many things
couldn’t _____
couldn’t = could not
read and draw
write
six years ago
then
now
wrote _____ to friends
writes emails.
used the _____ at home and in the office
has a mobile phone
telephone
mobile phone
letters
telephone
tewenty years ago
then
now
wrote _____ to friends
writes emails.
used the ________ at home and in the office
has a mobile phone
letters
telepone
tewenty years ago
then
now
listened to the radio
reads and watches news _______
newspapers
reads e-books
read
on the Internet
radio
e-book
newspaper
thirty years ago
then
now
made friends ___________
has e-friends _______________
bought things ______________
does shopping on the Internet
at school
from shops
from all over the world
She has e-friends from all over the world.
A. She only has e-friends in China.
B. She has e-friends from different countries.
tewenty years ago
then
now
then
now
then
now
The world is changing.