Unit 20 Mainly revision
单元教学目标
经期吃什么好
本单元是以复习为主,没出现新的内容。侧重点如下:
1. 学习一篇日记,掌握日记写法,复习一般过去时。
2. 以两个学生对话,复习一般将来时态。功能项目复习系动词及情态动词的用法,复习不定代词用法。
3. 复习五种简单句。在阅读文中复习一般现在时,过去时和将来时。
【重点难点解析】
1. 关于情态动词的用法
学生用书第110课第一部分列出了到目前为止所学的几个情态动词。它们分别是need, needn't; must, mustn't; have to, has to, had to; can, can't; could, couldn't; may。告诉 学生这些情态动词都有特定的意义,和另一动词构成谓语,在各种人称后都用同样的形式。
(1)need作情态动词用时,是表示“需要”的意思;主要用于否定句及疑问句中。如:
We needn't start so early. 我们不必这么早出发。
Need I come? 我需要来吗?
实义动词need用作及物动词时,和不定式连用,就可以用于各种结构。如We need to know more about this matter. 关于这件事我们需要了解更多的情况。
Does he need to say something? 他需要说些什么吗?
猪蹄海带汤He did not need to come. 他并不需要来。
(2)must 表示必须要做的事。如:
You must finish your homework before you watch TV. 你必须做完作业再看电视。
We mustn’t say any longer. 我们不能再说下去了。
在否定回答由must引起的疑问句时,答语用needn't。如:
A: Must we do eye exercis every day? 我们必须每天做眼保健操吗?
B: Yes, you must. 是的,必须这样。
No, you needn't. 不,没有必要。
(3)have to, has to, had to
与must相比,have to表示因客观环境促使而不得不做的事情。如:
We misd the last bus. We had to walk home. 我们错过了最后一班公共汽车。我们不得不走回家。
(4)can可表示能力、许可、提供帮助、提出邀请等意思。如:
The apples are too high. He can't reach them. 苹果长得太高了,他够不着。
Can I come in? 我能进来吗?
Can I take a message? 我能留言吗?
Can you come to my birthday party? 你能来参加我的生日聚会吗?
could用作can的过去式时,表示能力。如:
I couldn't swim when I was four. 我4岁时还不能游泳。
could还表示委婉地提出请求。如:
Could you wait for a while? 你能等一会儿吗?
(5)may可表示允许或征询对方许可和可能性。如:
You may go now. 你现在可以走了。
May I watch TV after supper? 晚饭后我可以看电视吗?
He may be right. 他可能是对的。
在总结这些情态动词的用法上,要求学生区分每个情态动词的不同含义。情态动词是初中学生学习英语的一个难点,需要学生认真做学生用书和练习册中提供的练习。
2. 写日记的格式:一般情况下先写好日期和天气情况,请记住日记的基本格式。
日期要顶格写,可先写星期,再写年月日,也可先写年月日再写星期。日期的写法通常用省略形式。如:Monday June 23rd, 1990(June 23rd, 1990 Monday)或Mon. Jun. 23rd, 1990(Ju n. 23rd 1990 Mon. )。
梅兰芳怎么死的
天气、温度的写法:通常是集中排列,写在日记的左上角,第一个字母大写。如:Sunny。
日记是记叙当天经过的事,所以谓语动词多用一般过去时,主语I常常省略。
【命题趋势分析】
不定代词用法是常见题之一。请复习本书19单元不定代词用法,然后做下题。
用不定代词填空。
1. “I can't hear anything”means“I can hear ”.
2. There is on the floor. plea pick it up.
3. Did go to play basketball with you?
4. I phoned you last night, but answered it.
三千年前5. I don't think telephoned.
6. Why don't you ask to help you?
7. If you want , Plea let me know.
8. Shall we get to drink?
9. Don't worry. There's wrong with your ears.
10. There's in the box. It's empty.
(Answer: 1 nothing 2 something 3 anybody/anyone 4 nobody/no one 5 anybody/any one 6 someone/somebody 7 something 8 nothing)
核心知识
【常用单词积累】
care, cancer, cousin, death, engineer, exciting, mylf, once, page, palace, sad, super, while, whole, wonderful, yet, keep a diary 记日记, the Summer Palace 颐和园, after lunch 晚饭后, look worried 看上去很着急, leave…by onelf 把… 单独留下, look after= take care of 照料、照顾、注意, be about ten months old 大约十个月大, Half an hour later 半个小时后, cry harder and harder 哭的越来越厉害,not…any more 不再, make a face(make faces)做鬼脸、做苦相, turn on 开( 电源开关、龙头、阀门等) turn off 关(电源开关、龙头、阀门等), all kinds of 各种 各样,have a wonderful time 玩的开心,过的快乐 make music 作曲、谱曲, be late for sth. 做某事迟到,have a cold 患感冒, look into 往…里面看, after a while 过了一会儿。
【基础知识精讲】
1. A page from a student's diary. 一则学生日记。
(1)表示“某人的一则日记”常用a page from…如
This is a page from Lei Feng's diary. 这是雷锋的一则日记。
(2)“记日记”,用keep, keep a diary 记一篇日记。如:
I keep a diary in English. 我用英语写日记。
2. I must take her to hospital. 我必须送她去医院看病。
hospital前不加冠词,表示看病、就医。如:
in hospital 住院, to hospital 入院治疗, leave hospital 出院
3. look worried 看上去忧愁的样子
look “看上去、看起来”是系动词,后接形容词。
如:The girl looked afraid. 这女孩看上去很害怕。
不习惯
They look happy. 他们显得很高兴。
You look better today. 你今天看上去气色较好。
4. I can't leave her by herlf. 我不能把她一个人留下。
by onelf“独自、单独”也可用all by onelf=leave…alone. 如:
Your son is too young. You can't leave him(all) by himlf at home when you are out. 你儿子太小。你出去时不能把他独自留在家里。
5. at first 起先、起初
表示起先是一种什么情况,后来又是什么情况,常和then(然后、接着),later(或later on )(后来)或…later(…之后)连用。
At first the boy was not good at English; then he began to study it hard. 这男孩起初英语学得不好,然后就开始努力学起来。
At first she didn't know how to keep a diary, later on she learned to write a page every day. 起先她不知道怎样记日记,后来就学着每天写一页。
6. (cry)harder and harder (哭得)越来越凶
升的反义词是什么
卢梭社会契约论形容词或副词比较级的叠用(~er and ~er, 或more and more…)表示越来越…,越变越… 。如:
难的英文
In spring the weather gets warmer and warmer. 春天天气变得越来越暖和。
He is working harder and harder. 他工作越来越努力了。
Our school is more and more beautiful. 我们学校越来越美了。
More and more people are beginning to learn English. 越来越多的人开始学英语了。
7. Laugh and laugh. 笑了又笑。
英语中动词可以叠用(用and连接),强调动作的持续性和反复性。
The strong wind blew and blew. 大风刮了又刮。
The boy ate and ate. 这男孩吃了又吃。
He walked and walked until he reached home. 他走了又走,一直走到家。
8. Half an hour later she woke up and began to cry. 半小时后,她醒了并开始大哭。
(1)later “较迟,稍晚”副词,作“以后”解,常用于一段时间之后。
如:ten minutes 十分钟后,a few months later 几个月后,five day later 五天之后等 ,和过去式的谓语连用。如:
I saw him in the park a week later. 一星期后我在公园看见他。