初中英语外研版九年级上Module 12 Unit 3 Language in use课件＋音频(共24张PPT)

(共24张PPT)
Unit 3 Language in use
Module 12 Save our world
Language practice
Reuse means “use again”.
Though pollution is heavy now, I don’t think it’s hopeless.
Make new words. Join the parts of words in Box A with the words in Box B. You need to use some of the parts more than once.
1
-able -ful im- -less re- un-
A
B
care collect hope possible use
usual wanted waste
构词法
1. 合成法
将两个或两个以上独立且语义不同的单词合在一起构成新词的方法叫做合成法。合成法是一种比较灵活的构词方法，可以合成名词、形容词、副词、代词、动词等。例如：afternoon, sportsman, blackboard, airplane, grandfather等是通过合成构词法构成的名词；kind-hearted, middle-aged, hard-working 等为合成形容词；however, maybe, himself, everyone, nothing, overlook 也都是通过合成法构成的单词。
新课讲授
2. 派生法
通过在词根前面加前缀或在词根后面加后缀构成一个新词的方法叫作派生法。
要通过派生法理解和记忆单词, 要掌握常见的前缀和后缀及派生规律。
1) 常见前缀
前缀 含义 例词
dis- 不 disagree, dislike
en- 使……处于某种状态 enable, enrich
im-, in- 不 impossible, impatient, inexpensive
inter- 在……之间, 相互 international, interconnect
Summarize the rules of prefix and suffix word-formation.
派生法是英语主要的构词法。这方法是借前缀或后缀产生出派生词，主要有名词、形容词和动词三种。前缀以否定前缀un-、in-、im-、il-、ir-、non-、dis-、mis-等为主，使单词延伸出来的派生词变成其反义词。例如：injustice(不公平的)、unhappy(不高兴的)、impossible(不可能的)等。
(1)名词派生词
balance(平衡)→imbalance(不平衡)；pleasure(高兴)→displeasure(不高兴)；
management(管理)→ mismanagement(管理不善)；
efficiency(功效)→inefficiency(无效率)等。
Summarize the rules of prefix and suffix word-formation.
(2)形容词派生词
accurate(精准，正确)→inaccurate(不正确)；
patient(能忍耐的)→impatient(无法忍耐的)；
regular(有规矩的)→ irregular(不规矩的)；
legal(合法的)→illegal(违法的)等。
(3)动词派生词
agree(赞同)→disagree(不赞同)；judge(判断)→misjudge(对……判断错误)；
treat(款待)→mistreat(虐待)等。
新课讲解
4
Complete the sentences with the correct form of the words in Activity 3.
She was hopeful that her new job would make her more successful.
1. The factory ________ the river, and the fish died.
2．We often walk in the countryside. It is a(n)
________ activity for us.
3．Do not use so much water. It is very________．
4．To keep the flowers growing, you need to
________ them once a day.
polluted
usual
wasteful
water
新课讲解
5
Complete the sentences.
A lunchbox is a box that you keep your lunch in.
1. A __________ is a card that you write on one side of and send to someone by post.
2. A __________ is a room where you have classes at school.
3. A __________ is a book that has one or more stories for children.
4. A __________ is a black board that is used at school for writing on with chalk.
postcard
classroom
storybook
blackboard
2. 表示 “再”的前缀：
re-
rewrite, reuse, recycle
3. 表示 “错误地”的前缀：
mis -
mislead , misunderstand
4. 表示 “在……之间，相互”意思的前缀：
inter- 表示“在……之间，相互”：Internet
后缀：
–able表示“可能，易于，适合于”，
构成形容词，
如：renewable, eatable(可吃的)，enjoyable
常见的后缀：
2) 名词转化为动词
She gave me a cup of water.
她给了我一杯水。
You should water the flowers twice a day.
你应该每天给这些花浇两次水。
3) 形容词转化为名词
She was wearing a black dress.
她穿着一条黑色的裙子。
The girl in black looks very beautiful.
那个穿黑衣服的女孩看上去很漂亮。
根据首字母提示和汉语或单词原型，写出正确单词形式。
1. (2024 安徽) The Shenzhou -17 team h (交) over their work to the Shenzhou-18 team on April 30th.
2. (2024 云南) David is a at a car factory. He loves his job. ( work)
3. (2024 江苏无锡) Jim has gone to bed This is very ________ (usual). He always stay up late.
handed
worker
unusual
中考真题小试
3. Complete the table.
Noun Verb Adjective Adverb
useful/useless
hope hopefully / hopelessly
pollution ——
water —— ——
waste
—— —— usually/ unusually
use
use
usefully/uselessly
hope
hopeful/hopeless
pollute
polluted/unpolluted
water
waste
wasteful/wasted
wastefully
usual/unusual
4. Complete the sentences with the correct form
of the words in Activity 3.
She was_________ that her new job would make her more successful.
hopeful
The factory _________the river, and the fish died.
2. We often walk in the countryside. It is a(n)_____ activity for us.
3. Do not use so much water. It is very __________.
4. To keep the flowers growing, you need to _____ them once a day.
polluted
usual
wasteful
water
8. Listen and check (√)the true sentences.
It is OK to throw used things away. Looking after
them takes a lot of time.
2. Do not throw away things made of glass, plastic and paper, but recycle them when possible.
3. Take a bag when you go shopping.
4. Producing electricity and using oil will not cause pollution.
5. Turn off lights when you do not need them.
6. Ride a bike or walk, and do not often drive your car.
√
√
√
√
9. Listen again and complete the table.
Advice Reasons
1.Don’t throw away things made of ________________ ______, but_______them. Throwing things away is wasteful.
2 ______your plastic bags when you can and __________ with you when you go shopping. Plastic bags ___________ recycle.
glass, plastic and
paper
recycle
take a bag
are hard to
Reuse
Now work in groups. Play the guessing game English for Fun.
1 full of care __________
2 can be collected __________
3 full of hope __________
4 without any hope _________
careful
English for Fun
collectable
hopeful
hopeless
Language practice
5 not possible __________
6 not usual __________
7 without any use __________
8 use again __________
9 not wanted __________
10 making a lot of waste __________
useless
impossible
wasteful
unusual
reuse
unwanted
Language practice
Language points
1. switch off = turn off
Switch off the TV. We’re firing the laser.
2. take part in
Take part in something you believe in.
● Choose a subject that you care about the most. It could be water pollution, air pollution,
etc.
● Find out more information about your subject. Look it up on a website or in a book.
Work in groups. Decide what kind of pollution you want to talk about.
Discussion
I like traveling by plane.
travel by plane
We should plant more trees to keep the air clean.
plant trees
Everyone should do something for protecting the environment.
protect the environment