外研版（2019）必修第一册Unit2 Exploring English Using language 课件(47张ppt)

(共47张PPT)
Book 1 Unit2 Using Language
Part 1: Word formation
butterfly
butter
fly
mooncake
moon
cake
Can you find out a common feature of these words
hamburger
sculpture
seasick
homework
harmless
invisible
P17
1. abbreviate [ bri vie t] v. 缩略;把(词语、名称)缩写(成…)
（ n. abbreviation ）
2. Change the part of speech （part of speech conversion) 转换词性
3. Add a prefix or suffix 加前缀或后缀
4. Combine two or more words 合成词
Abbreviation.
Can you tell the meanings of these abbreviations
2. 转化法:
一个词从一种词类转化为另一种或几种词类的方法称为“转化法”。如名词, 形容词转化为动词.
The woman milks the cows twice a day. _______________
He pictured a better world in his poem. _______________
The child was eyeing the chocolate cake. ______________
①挤…的奶；挤（奶）
② 描绘
③ 注视
Forcus on
基本含义和用法
词根（stem）前缀（prefix）后缀（suffix）
4. 派生法
派生词一般有前缀+单词，或单词+后缀构成，前缀+单词一般不改变原词的词性，但要引起词义的变化，一部分可构成反义词。单词+后缀一般不改变原词的基本含义，只改变其词性。
Forcus on
基本含义和用法
常见前缀
2. keys: strengthen（增强,加强）缩短( shorten ) sharpen( 削尖,磨快 ) 扩大( enlarge ) 使…丰富( enrich )
不活跃的,不活动的
非法的,不合法的
Forcus on
基本含义和用法
合成词：由两个或两个以上的词合在一起构成的词。常见合成词有复合名词、复合动词、复合形容词等几种类型。把两个或两个以上独立的词合成一个新词的方法叫合成法。
合成词 Compound Words
sunflower
sun
flower
football
foot
ball
starfish
star
fish
popcorn
pop
corn
rainbow
rain
bow
basketball
basket
ball
cupcake
cup
cake
sunglasses
sun
glasses
moonlight
moon
light
bookshelf
book
shelf
fireman
fire
man
doorbell
door
bell
goldfish
gold
fish
名词＋名词:
mooncake, pencil case, lifetime,
weekend, classmate, northeast, railway,
workbook, earthquake, doorbell,
hometown, necklace, spaceship,
dog days (三伏天), bookshop, sunlight …
复合名词
1.构成
b. 形容词＋名词:
loudspeaker, midnight/day, blackboard,
Mid-autumn, software, mainland …
c. v-ing＋名词:
sitting/waiting-room, freezing point …
d. 动词＋名词:
playground/house, watchtower,
chopsticks, washroom …
e. 名词＋v-ing：
f. 动词＋副词：
get-together, break-through…
g. 副词＋名词：
downfall, outbreak …
handwriting, home cooking,
thanksgiving, roller-skating …
Sightseeing took up the whole morning.
Finally they reached a cross-roads.
Smoking is not allowed during take-off.
主语
宾语
介词宾语
2.用法：
合成名词可以在句中作主语、宾语等。
复合形容词
1.构成
形容词＋名词＋ed: kind-hearted
形容词＋v-ing: good-looking
c. 副词＋v-ing: hard-working
d. 名词＋v-ing: English-speaking
e. 名词＋v-ed: man-made
f. 副词＋v-ed: well-known
g. 形容词＋名词: mid-east, round-trip
h. 其它:
up/downstairs, everyday, take-away, outdoor, one-way, part-time, two-month, secondhand, mouth-to-mouth, so-so, on-line, so-called, five-year-old
They helped us to map out a long-term
plan.
Open-air exercise will do you good.
Are you airsick
He is lively and outgoing.
定语
定语
表语
表语
2.用法：
合成形容词多数作定语，有些也可作表语。
复合动词
over + come = overcome (副词+动词)
复合数词
fifty + four = fifty-four
复合代词
everyone, somebody, anything, nobody (不定代词+名词)
复合副词
down + stairs = downstairs 在楼下( 形容词+名词)
whole + heartedly = wholeheartedly 全神贯注地　(副词+副词)
其他
接龙
幻灯片上的合成词出现时，同学应迅速读出并说出其中文意思。
每人一个，按行/列依次接龙，5秒内说不出，此行/列同学即失去此答题机会，下一行/列同学接续。
hotfoot
somewhere
beforehand
babysitter
policeman
baseball
well-paid
itself
taleteller
backstage
inside
onlooking
go
hard drive
thunderstorm
hard-working
eyeball
contact lens
多数复合名词变成复数时，只把主体名词变成复数，而由man, woman构成的复合名词变成复数时，必须把主体名词和man或woman都变成复数。
daughters-in-law
daughter-in-law
passer-by
passers-by
woman teacher
women teachers
man doctor
men doctors
1. He is a five-year-old boy.
=He is five years old.
2. It is a four-foot-long box.
这个盒子有4英尺长。
当数词和表示年龄、质量、尺寸等的名词用连字符“-”构成合成词时，这些名词用单数形式。
Practice
用括号中所给合成词的适当形式填空。
network, newspaper, high-speed, forever,
baby-sitter, mobile phone, long-term, peace-loving, face-to-face, search engine
1. We are going to take the _____________ train to Xi’an tomorrow, so an early arrival at the station is advised.
2. Andy got angry with you yesterday, so you need to have a _______________ conversation with him.
high-speed
face-to-face
network, newspaper, high-speed, forever,
baby-sitter, mobile phone, long-term, peace-loving, face-to-face, search engine
3. I will remember the great moment when I got my diploma _________.
4. The American television __________ CBS broadcast the award ceremony across the country last Sunday.
5. You just need to type the company’s name
into the ______________.
6. China is a ______________ country and the Chinese people are friendly.
forever
network
search engine
peace-loving
network, newspaper, high-speed, forever,
baby-sitter, mobile phone, long-term, peace-loving, face-to-face, search engine
7. My ______________ is out of order, so I
need to buy a new one at once.
8. It is a ___________ plan, so we have enough time to collect money for it.
9. I tried so hard to be the best ___________
ever, bathing the three little boys and reading them bedtime stories.
10. _____________ are a method of written communication that contains news about recent events and they are generally printed in an inexpensive kind of paper.
mobile phone
long-term
baby-sitter
Newspapers
Finish the exercises on page 17.
Exercises 1-3.
实战高考：
1．(2017·全国卷Ⅰ，69)However, be________ (care) not to go to extremes.
答案：careful　
2．(2017·全国卷Ⅲ，70)It is ________ (certain) fun but the lifestyle is a little unreal.
答案：certainly　
3．(2017·全国卷Ⅲ， 66)She is determined to carry on with her ________ (educate)．
答案：education　
4．(2017·江苏高考，29，改编) Only five years after Steve Jobs' death, smart phones defeated ________ (convention) PCs in sales.
答案：conventional　
68. strengthen 69. energetic
18 全国
卷i: The best exercise is one that you enjoy and will do. But otherwise ... it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to 68 (strength) your leg muscles (肌肉), avoid hills and get good running shoes. Running is cheap, easy and it’s always 69 (energy).
卷2： A taste for meat is 63 (actual) behind the change: An important part of its corn is used to feed chickens, pigs, and cattle.
This switch has decreased 66 (pollute) in the country’s major lakes and reservoirs and made drinking water safer for people.
According to the World Bank, China accounts for about 30 percent of total 67 (globe) fertilizer consumption.
63. actually 66. pollution 67. global
19年全国卷 I: It is difficult to figure out a global population of polar bears as much of the range has been 62 (poor) studied; however, biologists calculate that there are about 20,000-25,000 polar bears worldwide.
In recent years some Inuit people in Nunayut 65 (report) increases in bear sightings around human settlements, leading to a 66 (believe) that populations are increasing.
62. poorly 66. belief
卷II : Her years of hard work have 63 (final)been acknowledged after a customer nominated(提名)her to be Cheshire's Woman Of The Year.
But then we got an official letter and we were blown away. We are so proud of her. It's 70 (wonder).”
63. finally 70.wonderful
Part 2: American and British English. Page 18
Look at the pictures and get to know the American English words and their British equivalents.
Exercises:
1: Complete the passage on page 18 with the words above.
2: Work in pairs. Find more examples Of differences between American and British English. Use a dictionary or search on the Internet.
Part 3: Unfamiliar English expression Page 19
Step1: Listen to three conversations and match them to the pictures.
Step2: Exercise 7: Listen again and complete the table. And then talk about how the speakers ask for and explain the meanings Of the words. Listen again if necessary.
Exercise 8: Work in pairs. Act out the conversation to ask for and explain the meanings of the expressions.
Student A: Turn to Page 81 ．
Student B ： Turn to Page 84 ．
Exercise 9: Work in pairs. Find new words and their meanings on the Internet, and have a similar conversation.
Self-evaluation
What is word formation How many types of word formation do you know Try to list them and give us some examples.
Can you list some words to show the differences between American English and British English.
注: 另 word 文档。
Find out their meanings of the abbreviations bellow and try to find some more. (you can surf the Internet for help)
Surf the Internet and find out some more unfamiliar English expressions and share with us next class.