Unit 15 We’re trying to save the manatees!（Section A Period 1）

(共26张PPT)
Unit 15
Section A period1
What’s your favorite animal Why
Do you want to know more animals
What do you think of them
chimpanzees
furry
playful
noisy
…
What are they
Polar bears
furry
aggressive
…
What do you think of them
What are they
cheetahs
spotted
fast
aggressive
…
What do you think of them
What are they
African
elephants
enormous
gentle
…
What do you think of them
What are they
manatees
gentle
gray
shy
…
What do you think of them
What are they
kangaroos
playful
cute
…
What do you think of them
What are they
Pairwork
A: What’s your favorite animals
B: African elephants /kangaroos….
A: What do you think of them
B:They are enormous/playful…
Group work
A: I am like this animal because I
am strong and intelligent. I like
water and I like to eat vegetables.
B: You’re like an elephant.
A: No.
C: You’re like a manatee.
A: Yes!
Step3 Explanation
1.be like=look like=be similar to
像，看起来像。如：
他像他的父亲。
He is like his father.
= He looks like his father.
= He is similar to his father.
这里的like作介词，意思为“像”，like 还可做动词用，表示“喜欢”，like（doing）sth. 喜欢做某事。如：
He likes his father very much.
他很喜欢他的父亲。
Mary likes playing volleyball.
玛丽喜欢打排球。
2a
Listen and match
1.endangered
2.mangrove
swamps
3. habitat
4. aquatic
feed
The place where something
lives
b. there aren’t very many of
them
c. underwater plants and
vegetation
d. a place where trees grow in
water
Make a survey
name likes dislikes reason
Liping African elephants chimpan-zees gentle/
noisy…
According to the result , make a report.
Eg. Liping likes African elephants, because they
are gentle and shy. She doesn’t like
Chimpanzees. Because they are noisy……..
Hi, baby!
Let’s listen carefully !
1b
Listen and circle
2b
Listen again. Complete the chart.
Kind of animal manatee
Number ______ in the U.S
Habitat ______________________ in
Mangrove swamps
Reason why they are endangered Some of swamps have become
_______, there sometimes isn’t
_____________.
Description Large, _________ long and
________________ pounds
2500
polluted
Water under trees
enough food
ten feet
weighs 1000
2c
Pair work
A: How big are manatees
B: They’re about 10 feet long
and they weigh about 1,000
pounds.
2.以how组合的疑问词组
how big... 询问体重
how old 询问年龄
how often 询问频率
how long 询问动作持续的长短
how much 询问数量(不可数)或者价钱
how many 询问数量 （可数）
how far 询问距离
how soon 询问过多久
　 英语的语态是通过动词形式的变化表现出来的。英语中有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者。
Many people speak English.
谓语：speak 的动作是由主语 many people 来执行的。
　 被动语态表示主语是动作的承受者，即行为动作的对象。English is spoken by many people. 主语 English 是动词speak 的承受者。
　　动态和被动态指的是动词形式，是词法概念；而主动句和被动句则指的是句子结构，从而是句法概念。所谓主动句就是由主动态动词 (词组) 作谓语动词的句子，而被动句则是由被动态动词 (词组) 作谓语动词的句子。
Grammar Focus:
被动语态的构成
　　被动语态由 “助动词 be＋及物动词的过去分词” 构成。人称、数和时态的变化是通过 be 的变化表现出来的。现以 teach 为例说明被动语态在各种时态中的构成。
　　一般现在时：am／is／are＋taught
　　一般过去时：was／were＋taught
　　一般将来时：will／shall be＋taught
　　现在进行时：am／is／are being＋taught
　　过去进行时：was/were being＋taught
　　现在完成时：have／has been＋taught
　　歌诀是：被动语态 be 字变，过去分词跟后面。　
Grammar Focus:
被动语态的用法: (1) 不知道或没有必要说明动作的执行者是谁。 Some new computers were stolen last night. 一些新电脑在昨晚被盗了。(不知道电脑是谁偷的) This book was published in 1981. 这本书出版于1981年。 (2) 强调动作的承受者，而不强调动作的执行者。 The window was broken by Mike. 窗户是迈克打破的。 This book was written by him. 这本书是他写的。 Eight hours per day for sleep must be guaranteed. 每天8小时睡眠必须得到保证。 歌诀：谁做的动作不知道，说出谁做的没有必要；动作承受者需强调，被动语态运用到。
Grammar Focus:
用动词的适当形式填空
1.We’re trying _______(save) the manatees.
2.Manatees ____(eat) about 100 pounds of food a day.
3.There used to_____( be) a lot of manatees
4.In 1972, it _______________ (discover) that they were endangered.
5.Some of the swamps have become _________ pollute
to save
eat
be
was discovered
polluted
1.Copy the new words and remember them.
2. Read Grammar Focus.
3. Writing:
There are some animals are endangered. Class let do something to protect the animals and the environment! Please make a poster and think of what we can do.