(共18张PPT)
Unit 6
TV
programmes
Grammar
Conditional clauses with if and unless
1、含有if的复合句由两个分句组成;if 为连词,引导条件状语从句,另一句为主句。
如果谈论的是某一个动作发生后势必会产生某个结果,那么主从句都用一般现在时态。
e.g. If you boil water, it becomes steam.
If you drop a glass, it breaks.
If you heat metal, it melts.
If you run, you sweat.
If you put wood into water, it __________ (float).
floats
表示恒常规律
2、如果谈论的是“如果”某一个动作或事情发生后,很可能将会产生某种结果,那么在复句中主句的动词用一般将来时,而if从句仍然是一般现在时。
e.g. If it rains, we won’t take a hike tomorrow.
He will get to school on time if the clock goes off.
If he arrives in Hong Kong, he will call me.
If you don’t start early, you ___________the beginning of the film (miss).
will miss
主将从现
3、若 if 条件句放句首,从句后面要加逗号,和主句隔开。
4、 unless 与if 用法相似,相当于if…not
e.g. You will fail the exam if you don’t prepare for it.
→ You will fail the exam unless you prepare for it.
If he doesn’t look up the word in the dictionary, he won’t know its meaning.
→ He won’t know the word’s meaning unless he looks it up in the dictionary.
She will miss the train unless she _______ up early.
gets
if和unless的用法
一般情况下,unless相当于if…not,可以互换。用一般现在时代替将来时。
I won’t let you in unless you show me your pass.
= I won’t let you in if you don’t show me your pass.
如果你不出示通行证,我就不让你进来。
5、如果主句描述的是情感或情绪活动方面的内容,if…not结构不能换成unless。
如:I’ll be quite glad if she doesn’t come this evening.
她今晚如果不来我很高兴。
1.If you take more care, you’ll not have an accident.
如果不多加小心的话,你会出事故的。
2.My baby sister never cries unless she is hungry.
我那刚出生的妹妹除非饿了,否则她是从来不哭的。
3. I can't be more grateful if you come to the party tonight.
如果你今晚能来,我不胜感激
常见混淆错误
误:Don't come in unless you will be invited to.
正:Don't come in unless you're invited to.
误:Unless he will come, we won't be able to go.
正:Unless he comes, we won't be able to go.
unless 不能与not用在一个句子里
总结:
if 表示可能发生的事,时态:主将从现。
当表示自然规律时要用三单。
unless表示唯一有可能发生的事,或者是真实的事
unless 本身就是否定,不能与not连用。
一般可以和if...not...互换
表示情感态度时不能用unless
find
1. find +that从句
We found that he was wrong.
2. find it (形宾)+ adj.(宾补) + to do sth.(真宾)
Petter found it easy to learn English well.
3. find+宾语+宾补(adj./v.-ing/n)
A group of teens were found swimming in the river.
1. The diamond Heart of the Sea was found .
A. lieing with the Titanic. B. lied with the Titanic.
C. lying with the Titanic. D. is lying with the Titanic.
2. We find impossible for us to learn maths well in a short time.
A. that B. it
C. this D. one
(A)
要点:
1. 看电视是人们最喜欢的活动之一。电视节目种类繁多,如:……(列举至少三种)所以各年龄层次的人都对看电视感兴趣。
2. 看电视的好处:放松身心;了解时事新闻,……
3. 看电视的坏处:长时间观看会伤眼睛;不如看书能让人思考并变得聪明,……
4. 你对看电视的看法。
Unit6 话题写作专练
分析好坏
客观看待
Watching TV is one of people’s favourite activities. There are all kinds of TV programmes, such as chat shows, drama series, cartoons and so on, so people of all ages are mostly interested in watching TV.
We can relax ourselves and learn about up-to-date news by watching TV. TV programmes can improve our knowledge of the world. However, if you watch TV for too long, it will do harm to your eyes. You don’t need to think when watching TV, while you need to think when reading books. So reading makes you clever. Moreover, if you spend much time watching TV, you will have less time to do something more meaningful.
I think we can spend some time watching TV when we are free and try to watch programmes which can give us knowledge .
请以“My Favourite TV Programme”为题,写一篇80词左右的短文。要求表达准确并包括以下几点:
1. 你喜欢的节目名称;
2. 你喜欢这个节目的理由;
3. 看这个节目对你有什么启发?
1. 时态:一般现在时
2. 人称:第一人称
3. 写作思路:开文点题my favourtie...;节目播出时间 it starts at...;播放内容 it shows/tells;能看到、学习到什么by wathching it I can...;自己的反思与行动we had better...
4. 注意事项:要将题目中的三个要点介绍清楚。
I like watching TV in my spare time. The programmes about animals such as The Planet of the Animals on Discovery Channel and The World of the Animals on CCTV-10 are my favourites.
By watching these programmes I can see a lot of lovely, beautiful or strange animals that I have never seen before. Not only animals but also the beautiful scenes of the world will be shown on it, I can see mother nature at her finest on the screen.
My Favourite TV Programme
What shocks me is that it is said on TV that thousands of kinds of living things disappear every year on the earth, including plants, insects and animals. How terrible it is! Just imagine what the earth would be like if only human being are living alone on the earth some day.
Animals are our friends. We must try our best to protect them. Protecting animals is like protecting ourselves.
Goodbye !