15　课时分层训练(十)　Unit 5　What's the highest mountain in the world Section B 鲁教版 八上

课时分层训练(十)　Unit 5　What's the highest mountain in the world Section B
知识点一　weigh与weight的用法辨析
1．Jane is on a diet and measures(测量) her C every day．She wants to keep slim.
A．length　 B．height
C．weight D．width
解析：考查名词辨析。length长度；height高度；weight体重；width宽度。根据“Jane is on a diet”以及“She wants to keep slim.”可知，节食减肥时会每天测量体重。故选C。
2．The baby pandas often weigh (weight) about 0.1 to 0.2 kilos at birth.
3．如果你不运动， 你的体重会增加。
If you don't play sports, you will put on weight ．
4．How much does the box weigh？(同义句转换)
What is the weight of the box
知识点二　endangered, danger与dangerous的用法辨析
1．—Shall we go swimming in the sea
—Of course not．It's very A ．
A．dangerous B．delicious
C．difficult
2．—Some people kill C animals for their meat and fur．It is terrible.
—Yes, many of those animals are now.
A．dangerous; in need
B．faithful; in safety
C．endangered; in danger
解析：考查形容词及介词短语辨析。dangerous危险的；faithful忠实的；endangered濒危的；in need有需要；in safety安全地；in danger在危险中。根据下文“for their meat and fur”可知， 这里指杀死濒危动物；第二空是那些动物处于危险中。故选C。
3．We should do something to protect endangered (danger) animals.
4．遇到危险时你应该保持冷静。
You should keep calm when you are in danger ．
知识点三　wake与awake的用法辨析
1．—Don't A Dan．He had a busy day and had just fallen asleep.
—Sorry, I will keep quiet.
A．wake up B．point at
C．wait for D．look after
解析：考查动词短语辨析。wake up弄醒；point at指着；wait for等待；look after照顾。根据题中“He had a busy day and had just fallen asleep.”和“I will keep quiet”可知， 不要弄醒他， wake up符合题意。故选A。
2．Several hours later, Alice found herself B in a strange room.
A．aware B．awake
C．aloud D．asleep
解析：考查词义辨析。aware明白的；awake醒着的；aloud大声地；asleep睡着的。根据“Alice found herself ..．in a strange room.”及常识可知， 发现自己身处何处应是在清醒的时候。故选B。
3．明天早晨5：00请叫醒我， 我想赶第一班公共汽车。
Please wake me up at 5：00 tomorrow morning．I want to catch the first bus.
知识点四　ill与illness的用法辨析
1．After walking in the rain for a few hours, he was ill at last.(同义替换) C
A．happy B．tired
C．sick D．crazy
解析：考查形容词辨析。happy开心的；tired累的；sick生病的；crazy疯狂的。ill表示“生病的”， 与sick词义相近。故选C。
2．He was very good to me when I was ill (ill)．
3．因为生病， 罗伯特缺席了昨天的会议。
Because of illness ,_Robert was absent from the meeting yesterday.
知识点五　cut down的用法
1．To protect the environment, we should prevent people from B the trees.
A．putting down B．cutting down
C．taking down D．getting down
解析：考查动词短语辨析。put down放下；cut down砍倒；take down记下；get down下来。根据“the trees”可知， 是砍伐树木。故选B。
2．Students should A the time they spend on their smart phones.
A．cut down B．cut up
C．cut off D．cut out
解析：考查动词短语辨析。cut down削减；cut up切碎；cut off切断；cut out停止运转。根据“the time they spend on their smart phones”可知， 学生的主要任务是学习， 而不是玩手机， 因此应当削减时间。故选A。
3．如果是短途出行， 我们最好是步行或骑自行车， 以减少空气污染。
To cut down air pollution, we'd better walk or ride a bike if we travel a short distance.
知识点六　protect与protection的用法辨析
1．Teenagers should use as few electronic products as possible to A their eyes.
A．protect B．pollute
C．punish
解析：考查动词辨析。protect保护；pollute污染；punish惩罚。根据“Teenagers should use as few electronic products”可知，少使用电子产品是为了保护眼睛。故选A。
2．Nowadays, more and more people are paying attention to the C of the environment.
A．population B．pressure
C．protection D．performance
解析：考查名词辨析。population人口；pressure压力；protection保护；performance表演。根据“people are paying attention to the..．of environment”及现实情况可知， 此处指人们更加关注环境保护。故选C。
3．Everyone plays an important role in protecting (protect) the environment.
阅读理解
Dolphins(海豚) are one of the cleverest animals in the world．We may hear of many stories about how dolphins save people out of water.
Dolphins often eat fish and some other sea animals．A dolphin with a weight of 200 kg to 250 kg will eat 10 kg to 25 kg of fish every day．They like to swim with other dolphins and usually hunt(捕猎) in groups.
Dolphins have very good hearing．They use it to find things under the water．Many scientists also believe dolphins can even talk to each other through a special whistle(哨声)．People from different areas don't speak the same language．Just like people, dolphins' whistles have many kinds．One day we may understand dolphins' whistles, and then they will be able to tell us about themselves.
Dolphins live in the sea, but they are not a kind of fish and they don't lay eggs．They have babies in the same way as cows and cats do, and give their babies milk．A female dolphin has a baby every two to three years.
Dolphins are very friendly．Sadly, there are not many kinds of dolphins left．People killed them for many years for food and other things．Now it's time to stop this and perhaps there will be more of them in the years to come.
(　B　)1．If a dolphin weighs 240 kg, how much fish may it eat every day
A．5 kg． B．16 kg．
C．30 kg． D．35 kg.
解析：细节理解题。根据“A dolphin with a weight of 200 kg of to 250 kg will eat 10 kg to 25 kg of fish every day.”可知， 体重在200公斤到250公斤之间的海豚每天会吃掉10公斤到25公斤的鱼。故选B。
(　C　)2．How do dolphins find things under the water
A．By taste． B．By smell．
C．By hearing． D．By touch.
解析：细节理解题。根据“Dolphins have very good hearing．They use it to find things under the water．”可知， 海豚通过听觉在水下寻找食物。故选C。
(　A　)3．What can't dolphins do according to this passage
A．Lay eggs.
B．Talk to each other.
C．Give babies milk．
D．Save people out of water.
解析：细节理解题。根据“Dolphins live in the sea, but they are not a kind of fish and they don't lay eggs.”可知， 海豚不会下蛋。故选A。
(　A　)4．Which of the following is NOT
true according to the passage
A．Dolphins are a kind of fish.
B．Dolphins eat fish and some other sea animals.
C．Dolphins usually hunt in groups.
D．People may understand dolphins' whistles some day.
解析：推理判断题。根据“Dolphins live in the sea, but they are not a kind of fish”可知， 海豚不是一种鱼。故选A。
(　D　)5．Which is the best title for the passage
A．What Dolphins Eat
B．Where Dolphins Live
C．How Dolphins Are Swimming
D．Something About Dolphins
解析：最佳标题题。文章主要讲了海豚的生活习惯及特性， 用“Something About Dolphins”作标题最合适。故选D。
【创新运用】
书面表达
假如你是一位动物爱好者。请根据下列提示信息用英语写一篇短文， 介绍中国的国宝——大熊猫。
产地 中国西南部的大山和森林里
体貌特征 黑白相间的皮毛、大眼睛、圆耳朵
饮食习惯 成年熊猫一天进食12个小时， 食量为10千克竹子
寿命 20－30年
现状 竹林面积减少， 熊猫生存空间越来越狭窄；目前野外约有大熊猫1 900只， 动物园和研究中心约有340只
要求：
1．内容应包括所有提示内容， 可适当发挥；
2．词数80左右。
Pandas are very lovely. They're black and white with big eyes and round ears. They live in the southwestern forests and mountains of China. They live on bamboo. Adult pandas usually spend twelve hours a day eating about ten kilos of bamboo. They don't live very long, usually up to 20 to 30 years. Now there are fewer and fewer bamboo forests for them to live in. As far as I know, there are only about 1，900 pandas in the wild, and about 340 pandas in zoos and research centers. We must do something to protect them.
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