Section A内容详解
Language Goal:Debate an issue
语言目标：辩论一个观点
1a
Here are some words that describe animals.Write these words in the boxes below.Then write other words you know.
这儿有些描写动物的单词。在下面的表格中写出这些单词。然后写出你所知道的另一些单词。
gentle furry enormous playful noisy
温和的毛皮的巨大的好玩的喧闹的
shy aggressive gray fast spotted
害羞的挑衅的灰的迅速的有斑点的
African elephants________________
非洲大象
Chimpanzees_____________
黑猩猩
Kangaroos______________
袋鼠
Manatees gentle温和的___________
海牛
Cheetahs______________
猎豹
Polar bears_____________
北极熊
1a题参考答案：
manatee：gentle,shy chimpanzees：noisy
elephants：enormous gray kangaroos：playful
cheetahs：spotted,fast polar bears：aggressive,furry
1b
Listen and circle the words in activity 1a that Victor and Ginny use to describe the animals．
听录音，把在1a活动中维克多和吉妮用来形容动物的单词圈起来。
听力原文再现
Boy:Hey,Ginny.What's that big,furry animal in the pond?
Girl:It's a polar bear,Victor.They're kind of aggressive.
Boy:Are they?Looks like they really love water.
Girl:Uh-huh.
Boy:And what do you call those big,gray things in the water?
Girl:They're called manatees.
Boy:What?
Girl:Manatees.They're very gentle and very shy.
Boy:Oh.And how about the yellow and black spotted animals in that cage?
Girl:They're cheetahs.The cheetah is the fastest animal on earth.
1b题参考答案：
aggressive,gentle,shy,furry,gray,fast,spotted
1c
Groupwork小组活动
Think of an animal that is the same as you in some ways．Write    a statement about you and the animal．Read your statement without saying the name of the animal．The class guesses what kind of animal you are like．
想出一个在某些方面和你相同的动物。写出你与动物的共同特征。不说出动物的名字而只读这些特征。让同学们猜测你像哪种动物。
A:I am like this animal because I am strong and intelligent．I like water,and I like to eat vegetables．我像这种动物因为我强壮又聪明。我喜欢水，我喜欢吃蔬菜。
B:You're like an elephant.你像一头大象。
A:No．不是。
C:You're like a manatee．你像一头海牛。
A:Yes!对了!
要点解疑
like作介词时，其后可跟名词、代词或动词-ing形式，意思
是“像……一样”。
例如：He looks like a policeman．他看上去像个警察。
Please don't treat me like a guest．请不要把我当客人。
Do you feel like drinking some tea?你想喝点茶吗?
like作动词时，其后可跟名词、代词、动词不定式或动词-ing形式，意思是“喜欢”。
例如：I like to go to the mall after school．放学后我喜欢到商场去。
They like swimming in the rivers in summer．他们夏天喜欢在河里游泳。
2a
Listen and match the words and definitions．
听录音，把单词和释义连起来。
1．endangered a．the place where something lives
濒临灭绝的某些东西居住的地方
2．mangrove swamps b．there aren't very many of them
沼泽地的红树林没有很多
3．habitat c．underwater plants and vegetation
栖息地水下的植物
4．aquatic feed d．a place where trees grow in water
水生饲料在水里生长树的地方
听力原文再现
Boy:Can you tell us about the manatees,please?
Man:Sure．We're trying to save them．
Boy:Why?Are they endangered?
Man:Yes．There used to be a lot of manatees,but now there aren't very many of them．
Boy:Do you know how many there are?
Man:At this point,there are only about 2,500 in the U．S．In 1972,it was discovered that they were endangered．Since then,the government has passed laws to protect them.
Boy:Where do they live?
Man:Their favorite habitat is the water under the trees in mangrove swamps．
Boy:And why are they endangered?
Man:Some of the swamps have become polluted．Also,there sometimes isn't enough food for all of them．As you can see,they're large．The average manatee is about three meters long and weighs about 1,000 pounds．They need about 100 Pounds of aquatic feed a day．
Boy:Aquatic feed?
Man:Oh，that's underwater plants and vegetation．That's what they eat.
2a题参考答案：
1．b 2．d 3．a 4．c
2b
Listen again and complete the chart．
听录音，完成表格。
Kind of animal动物种类manatee海牛
Numbers数量
Habitat栖息地
Reason why they
are endangered
他们濒临灭绝的原因
Description种类
2b题参考答案：
Kind of animal:manatee
Numbers:2,500 in the U．S．
Habitat:water under trees in mangrove swamps
Reason why they are endangered:swamps polluted,not enough food
Desription:large,three meters long,weighs 1,000 pounds
2c
Pairwork结对练习
Use the facts in the chart above to role play a conversation between a student and a zoo attendant．用上面表格中的事实，分角扮演学生和动物管理员进行会话。
A:How big are manatees?海牛多大?
B:They're about 10 feet long and they weigh about 1,000 pounds.
他们大约10英尺长，重约1000磅。
要点解疑
how是个使用频率很高的单词，它常与其他词构成—些固定的搭配。用来对事物进行询问。
how big常用来对体积、重量进行提问，意思是“多大；多重”。
bow long常用来对长度、时间进行提问，意思是“多长；多长时间”。
how much,how many常用来对数量进行提问，意思是“多少”，前者用来对不可数名词提问，后者用来对可数名词提问。
how far常用来对距离进行提问，意思是“多远”。
how old常用来对年龄进行提问，意思是“多大年纪；多少岁”，不过需要注意，除了公务、长辈对晚辈、上级对下级可以询问年龄外，
不要询问他人的年龄，尤其是妇女的年龄，在西方人看来，这是他们的隐私。
how often，how soon都可以用来对时间提问，前者的意思是“多长时间一次”，是询问频率的，后者意思是“再过多久”，是询问“以后”的时间。
例如：How many minutes are there in an hour?一个小时有多少分钟？
How much milk is there in the glass?杯子里有多少牛奶？
How long is the bridge?It's about 5 kilometers．
这座桥有多长？大约5千米长。
How far is it from Beijing to Shanghai?北京到上海多远？
How often do you go to see your grandparents?
你多长时间去看望一次你的爷爷和奶奶？
How soon will she be back?她要多久才回来？
Grammar Focus语法重点
Review复习
We're trying to save the manatees．
我们正在尽力拯救海牛。
Present progressive
现在进行时
Manatees eat about 100 pounds of food a day．
海牛一天大约吃100磅食物。Present
一般现在时
There used to be a lot of manatees．
过去有很多海牛。
Past with"used to"
带"used to"的过去时
In 1972,it was discovered that they were endangered．
在1972年，发现它们(海牛)濒临灭绝。Passive voice 被动语态
Some of the swamps have become polluted．
一些沼泽地已经受到了污染。Present perfect 现在完成时
editor的名词和动词形式语法贯通
主谓一致
无论是在做练习时，还是在测试中，英语句子中的主谓一致都是重点和难点。不管是简单句，还是复合句，陈述语气也罢，虚拟语气也