北师大版（2019）选择性必修第四册 Unit10 Connections Lesson1 How Closely Connected Are We?精品课件(共14张PPT)

(共14张PPT)
1. “Six Degrees of Separation” refers to the theory that any person on Earth can be connected to any other person through a chain of no more than five other people.
no more than: only
eg This test takes no more than thirty minutes.
【拓展】no more ... than“前者和后者一样不……”，前者和后者都被否定。
eg The world was in shock — maybe they assumed this space flight would be no more dangerous than getting on an aeroplane.
that引导的同位语从句，解释说明theory的具体内容
1) no more ... than和not more ... than
前者的意义和语气在于强调该形容词或副词的反面性质，后者只是简单地进行程度上的比较。试比较：
This book is no more difficult than that one.
这本书和那本书一样容易。
This book is not more difficult than that one.
这本书不及那本书难。
The second story is no better than the first one.
第二个故事和第一个故事一样不好。
The second story is not better than the first one.
第二个故事不如第一个故事好。
2) no more than+数词/名词和not more than + 数词/名词
前者主要用来表达作者的主观看法或口气，强调数量之少（小）或微不足道；后者只是客观地表示“不超过”，没有什么特殊的意味。试比较：
No more than three people came to my class.
只有三个人来上我的课。
Not more than ten guests came to my birthday party.
来参加我的生日宴会的客人不超过十个。
【语境应用】完成句子。
1) 我口袋里只有五十元钱。
I have ________________ 50 yuan in my pocket.
2) 他和我同样不勤奋。
He is _____________________ I am.
3) 这道题没有那道题难。
This problem is ____________________ that one.
no more than
no more diligent than
not more difficult than
2. …, in which he introduced the idea of friendship networks and his ideas influenced many of our early impressions of social networks.
impression n. an idea, a feeling or an opinion that you get about sb/sth, or that sb/sth gives you 印象，感想
eg I had the impression that he was a young man, but he
turned out to be much older.
Mary made such a good impression at work that she was
soon promoted.
【搭配】
make / leave an impression on sb. 给某人留下印象
under the impression 有……的印象，认为，以为
eg We were under the impression that they were brothers.
【同根词】
impress v. 给……留下深刻印象，使意识到(重要性或严重性等) eg The film we saw last night impressed me very much.
We were deeply impressed by / at / with his words at the opening meeting.
Father impressed on me the value of hard work.
【语境应用】汉译英。
1) 他就任总统后的首次演说给听众留下了深刻的印象。
____________________________________________
____________________________________________
2) 我原以为你明天才来。
____________________________________________
____________________________________________
3) 他使我们意识到必须立刻采取行动了。
____________________________________________
____________________________________________
His first speech as president made a strong impression on his audience.
I was under the impression that you were coming tomorrow.
He impressed upon / on us the need for immediate action.
3. The people sending the packages only knew the name, job and general location of the stranger.
单个现在分词(很多已经形容词化)作定语，可以放在被修饰名词前面；现在分词短语作定语，起一个定语从句的作用，常放在修饰词后面。
eg The room has hot running water.
People wishing (= who wish) to visit the caves may sign up here.
Look at the man sitting (=who is sitting) on the rock.
现在分词作定语，可用定语从句替换
4. Once the parcel had been received by this person, he/ she
would send the parcel onto a contact of theirs until the parcel could be personally delivered to the correct person.
once conj. 一旦……就……，引导时间状语从句，相当于as soon as。
eg They didn’t know how they would cope once the money
had gone.
deliver sth. to… 递送，传送，交付
eg Leaflets have been dilivered to every household.
5. Amazingly, it only took between five and seven people to get
the parcels delivered, and once released, the results were
published in the bimonthly magazine Psychology Today.
once released = once the results were released，当从句的主语和主句的主语一致，且谓语中有be动词时，可省略从句的主语和be动词。
release vt. to let news or official information be known and printed 公布，发表
eg The new trade figures have just been released.
They're not releasing any more details yet.
release vt. to let sb/sth come out of a place where they have been kept or trapped 释放；放出；放走
eg I released the horse and it ran away.
I released the bird from its cage.
After the trainer was sure that the whale could look after itself, he released it into the sea.
release n. 释放，排放；发布，发表
eg Simon has obtained early release from prison.
October 22nd is the date set for the report's release.
bimonthly adj. appearing or happening every two months or twice each month 两月一次的；一月两次的
前缀bi- (表数量): two, twice or double
bilingual (=speaking two languages)双语的
biannual (一年两次的，半年一次的)
后缀-ly (加在名词后面构成形容词或副词): 每隔……时间的，在……时间的
a weekly newspaper
monthly payments