课件44张PPT。Unit 15 We’re trying to save the manatees!Section A(1a-2b)new wordsmanatee
furry
enormous
playful
aggressive
gray n. 海牛
adj. 毛皮的；似毛皮的；长有毛皮的
adj. 巨大的；庞大的
adj. 顽皮的；爱玩耍的
adj. 侵犯的；挑衅的
adj. & n. 灰色（的）；
偏灰色（的）Words and expressionsspotted
kangaroo
chimpanzee
cheetah
mangrove
swampadj. 有斑点的；有点
子的
n. 袋鼠
n. 黑猩猩
n. 猎豹
n. 红树（一种热带树
木，生于水中或水边）
n. 沼泽；沼泽地Words and expressionshabitat
Aquatic
feed
underwater
vegetationn. （动植物的）生长环
境；栖息地
adj. 水生的；水栖的
n. 水生植物；水生动物
n. 动物的食物；饲料
adj. 在水下的；在水中的
n. (总称) 植物；草木Words and expressionsweigh
pound
polluted
present progressive
present simple
infinitive
passive
present perfect v. 称；称……重量
n. 磅
adj. 被污染的
现在进行时
一般现在时
n. 动词原形；不定式
被动语态
现在完成时Words and expressionsfree talkEndangered
animals DesertificationearthquakePollutionThe world's problemsHow to protect the earththe earthsave the animalsLet’s have a competition.1.What animal is the biggest on land?2.What animal only lives in Australia?3.What animal is the king of the forest?4.What animal looks like a cow,
but it lives in the water?Animals are man’s friends.African elephantsenormousgrayDescribe the following animals.chimpanzeesnoisykangaroosplayfulmanateesgentleshycheetahsspottedfastpolar bearsaggressivefurrygentle furry enormous playful noisy
shy aggressive gray fast spotted1aListen and circle the words in 1a.1bI am like this animal because I am strong and intelligent. I like water and I like to eat vegetables.You’re like an elephant. No.1cYou’re like a
Manatee.Yes.Explanation 2aListen and match the words with definitions. endangered a. the place where
something lives.
2. mangrove swamps b. there aren’t very
many of them.
3. habitat c. underwater plants
and vegetation
4. aquatic feed d. a place where trees
grow in waterListen and complete the chart.2500 in the U.S.the water under the trees in mangrove swamps.swamps being polluted.
not enough food.10 feet long,
1000 pounds heavy2bPAIRWORKA: How big are manatees?
B: They’re about 10 feet long
and they weigh about 1,000
pounds.A: How big are manatees?
B: They’re about 10 feet long
and they weigh about 1,000
pounds. 6 feet tall,
100 pounds 10 feet tall,
800 pounds5 meters long,
2 meters tall--- How long is the river?
--- It’s 2,100 meters long.
Language points---How heavy is the box?
---It is / weighs 20 pounds.
????
— How + + be + 主语?
—主语+ be + 数词+ 量词+ Language pointsbig
long
wide
deep
high
tall
…big
long
wide
deep
high
tall
…This classroom is 5 meters wide.
= This is a 5-meter-wide classroom.
Language points在句中做定语在句中做表语They’re about 10 feet long and they weigh about 1,000 pounds.
【经典习题】完成句子（每空词数不限）
那条大街大约有200米长，3米宽。
The street is about _______________, _____________.
【要点点拨】“数词 + 量词（复数）+ 形容词”，常用来表示长度、宽度、高度、年龄或时间等。这种结构也可用作表语。 如：
This river is twenty meters long.
=This is a twenty-meter-long river. 3 meters wide 200 meters longGrammar Focus Manatees eat about 100 pounds of food a day．Present Simple (一般现在时):
动词的形式： do or doesFor example: I go to school by bike．
She does her homework every day．
Grammar FocusThere used to be a lot of manatees．Past with used to
结构: used to + infinitive(动词原形)For example: I used to go swimming when I was a child．Grammar FocusIn 1972, it was discovered that they were endangered．Passive voice(被动语态):
结构: be + Ｖ过去分词For example: Our classroom is cleaned every day．Grammar FocusSome of the swamps have become polluted．Present Perfect(现在完成时):
结构: have/has +Ｖ过去分词For example: I have already finished my homework．
SummarySum up what you have learnt in this class!根据句意，用括号内所给单词的适当形式
填空。
Some of the rivers here ____________
(pollute) three years ago.
2. I’m sure the room is too small for us
______ (live) in.
3. He was surprised ______ (see) me in the street yesterday.
4. The boy urged his father _____ (buy) a computer for him.
5. There ______(use) to be a lot of birds here, but now we can hardly see them.were pollutedto liveto seeto buyused按要求改写下列句子，每空一词。
How heavy are you, Alice?
（改为同义句）
How much __ ____ ______, Alice?
2. The boring film disgusted everyone.
（改为同义句）
Everyone ____ _______ _______ the
boring film.
3. Mary could hardly wait any longer.
（改为反意疑问句）
Mary could hardly wait any longer,
_____ ____?do you weighwas disgusted with/ atcould she4. The zoos won’t have enough money to
look after so many animals if we
don’t support them. （改为同义句）
The zoos won’t have enough money to
look after so many animals ______
___ ______ them.
5. She found it hard to care for the baby.（改为同义句）
It was hard for her ___ ____ ___ __
the baby.to take care ofwe supportunless It has a strange smell in your room.
You’d better keep the window ______. ? A. open? B. opens?
C. closes? D. closed
2. -- Mr. Johnson asked me to remind
you of the meeting this afternoon.
Don’t forget it!
-- OK, I______. A．won’t? B．don’t
C．will?? D．do中考真题链接3. -- When will you come to see me, Dad? -- I will go to see you when you ____ the
training course.
A. finished B. finish?
C. are finishing?? D. will finish
4. -- Inventors have changed the way we
live.
-- So they are famous for the great
things they ___. A. do B. did
C. are doing D. had done5. -- What should I do, doctor?
-- __ healthy, you should take more
exercise.
A. Keep B. Keeping
C. To keep D. Having kept
6. -- What are you going to do this
Sunday?
??? -- I ___ yet. ??? A. won’t decide B. didn’t decide
C. haven’t decided D. don’t decideHomework* Try to find more endangered animals in the world and write a short passage about how to save them or protect them.Thank you !
