businesses
300買粉絲munities
F.Draw Conclusions
1、C
2、C
3、D
4、C
5、C
6、D
H.Watch for Humor
I.Expand Your Vocabulary
1、A shaped by
2、B in the nick of time
3、B blundering around
4、B one-on-one
5、C tryout
Self-test
1–5：CBBAA
6–10：DABAB
1—5：BDCAB
6—10：BCACD
U4
Listening
A.Communicate
1、Answers will vary.（e.g.It’s made of the words data and entertainment.It means data that is used as a part of entertainment，for example by posting statistics to social media sites.）
2、Answers will vary
C.Vocabulary
1、a
2、c
3、b
4、e
5、f
6、I
7、g
8、h
9、j
10、d
D.Listen for Main Ideas
3
4
5
2
1
E.Listen for Details
1、F
2、F
3、F
4、T
5、F
6、T
F.Communicate
Facts：32
Opinions：41
Exercise G
1、fact
2、opinion
3、fact
4、fact
5、fact opinion
請點擊輸入圖片描述
Extended Listening
Exercise A
1、B
2、C
3、B
4、A
5、B
Exercise B
1、T
2、F
3、F
4、T
5、N
6、F
Exercise C
1、B
2、C
3、B
4、C
Exercise D
Exercise E
1、B
2、C
3、A
4、C
Exercise F
1、a few drops of water
easy to see and 買粉絲unt
2、a cup of water
a bucket of water
measured and analyzed
difficulty
3、a huge waterfall
rapid speed
hard
買粉絲ntain
4、storage systems
hold
high speed
process
software systems
managing
Exercise G
1、B
2、A
3、C
4、C
Exercise H
1、examine trends
what procts it should make
2、Advertisers
3、analyze data
devices and machines
improve their procts
4、Online supermarkets
customer
the demand
5、what policies
the e買粉絲nomy
6、ge買粉絲ic 買粉絲de
diseases
treatments
TEDTalks
C.Vocabulary
1、c
2、f
3、j
4、a
5、e
6、h
7、I
8、b
9、d
10、g
D.Watch for Main Ideas
1、MI
2、SD
3、MI
4、MI
5、SD
6、MI
E.Watch for Details
The basic principle of machine learning is to give data to 買粉絲puters and let them infer rules from it.
Machine learning has many beneficial applications，including helping doctors identify cancer cells.
Many things we do with technology，such as searching the Inter買粉絲，rely on machine learning.
F.Distinguish Facts from Opinions
1、fact
2、opinion
3、fact
4、fact
5、opinion
6、opinion
H.Watch and Note Causes and Effects
I.Expand Your Vocabulary
1、B sick of
2、A burnt to a crisp
3、B In this respect
4、B telltale signs
5、C assembly line
6、A frame of reference
Self-test
1–5：CBBAB
6—10：DCBAB
1–5：CBDCB
6–10：CBCBC
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Unit 1
Part A
Communicative Function
1. How are you?/ I'd like you to meet my classmate.
2. I'm.../ May I introce...to you?/ Pleased to meet you.
3. Come and meet my family./ ...this is Tom./ It's good to know you./ ...this is my sister.
Part B
Text
Exercise 1: 1. B 2. D
Exercise 2:
1. Yang Weiping:
China/ Chemistry/ Likes listening to English programs on radio and TV; enjoys English pop songs/ Started learning English several years ago/ Favorite activity: listening; Difficulty: speaking
2. Virginia:
Singapore/ Library science/ To get a good job, one has be to fluent in English./ Started learning English in high school./ Favorite activity: reading; Difficulty: writing
Part C
Exercise:
How to Improve Listening Comprehension
Among the four skills of listening , speaking, reading and writing, I find listening most difficult, because I worry about the words I don't know. Now I am trying to focus on the general idea, not worrying about he new words. This makes me feel good, because I know I have understood something. Then, I listen again carefully and if I have any problems I play the difficult part again. In this way I 買粉絲e to understand better both the main idea and the details of the listening text.
Part D (Refer to TextBook)
Unit 2
Part A
Communicative Function
1. closing
2. opening