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(共46张PPT)
Unit 7 The natural world
Part 4 Word power & Integration
答 案 呈 现
温馨提示：点击 进入讲评
1
project
cause
cover
solve
knowledge
2
3
4
5
1
environmental
balanced
greatly
to create
hiding
2
3
4
5
1
lead to
covers
madam
set up
north-east
2
3
4
5
1
D
A
B
A
C
2
3
4
5
基础提优练
答 案 呈 现
1
create; cause environmental
ways to solve
set up a project
prevent/stop people from damaging
It is important; to provide; with
2
3
4
5
1
largest
history
finally
kinds
getting
2
3
4
5
6
reserve
Wetland
area
rare
wildlife
7
8
9
10
综合提优练
基础提优练
答 案 呈 现
1
A
C
B
C
A
2
3
4
5
6
B
D
D
C
A
7
8
9
10
11
B
D
C
B
A
12
13
14
15
综合提优练
答 案 呈 现
1
different
use
help
swimming
big
2
3
4
5
6
feed
far
pets
facts
height
7
8
9
10
综合提优练
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一、根据句意及汉语提示、首字母、音标或英文释义，写出句中所缺单词
1. The government will start a new environment-friendly building ________ (项目) next year.
2. Smoking can ________ (造成) serious health problems like lung cancer
project
cause
3. They found a c under the big tree to protect themselves from the sun.
4. When we meet difficulties in study, group discussions can help us ________ /s lv/ them.
5. We should improve people’s ____________ (information and understanding about a subject) about healthy diet.
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over
solve
knowledge
二、用括号内所给单词的适当形式填空
1. Using less plastic is helpful for the ______________ (environment) protection.
2. To keep fit, you should take more exercise and develop a ___________ (balance) diet.
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environmental
balanced
3. The factory’s wastewater is ________ (great) damaging the plants and fish in the nearby river.
4. The city is building new parks _________ (create) more green spaces for people.
5. Some insects protect themselves from chemicals by ________ (hide) in tiny spaces.
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greatly
to create
hiding
三、从方框中选择适当的单词或短语并用其正确形式填空
1. Pollution from factories can ________ serious harm to the environment.
2. We were lucky to find these caves, and they became our ________ during the storm.
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madam lead to north-east set up cover
lead to
covers
3. When writing a letter, we use sir or ________ to address people we don’t know.
4. They decided to ________ a small business selling handmade crafts in their free time.
5. In the __________ of China, you can see amazing ice sculptures (雕塑) during winter festivals.
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madam lead to north-east set up cover
madam
set up
north-east
四、单项选择
( )1. —What’s the meeting this afternoon about
—______ problems. The air pollution in our town is more and more serious.
A. Magical B. Traditional
C. Physical D. Environmental
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D
( )2. Which one of the following words will be like “friendly” after adding “-ly”
A. Month. B. Real. C. Usual. D. Careful.
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A
( )3. —There has been little rain so far in North America, and it______ serious drought (旱灾).
—Exactly. Farmers are having a hard life.
A. asks for B. leads to
C. pays attention to D. returns to
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B
( )4. [易错题]We should work hard ______ people ______ throwing rubbish everywhere.
A. to stop; from B. stopping; from
C. to stop; to D. stopping; to
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A
( )5. —I think AI is one of the most useful tools in recent years.
—______! It’s becoming an important part of our daily life.
A. OK, a good idea B. I don’t think so
C. You said it D. Don’t say so
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C
五、句子翻译
1. 这家新工厂将创造就业机会，但也可能造成环境污染。
The new factory will ________ job opportunities but may also ________ _____________ pollution.
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create
cause environmental
2. 科学家们正在寻找解决全球变暖问题的方法。
Scientists are looking for ________ ________ ________ problems of global warming.
ways to solve
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3. 领导决定设立一个项目来开发新的节能技术。
The leader decided to ________ ________ ________ ________ to develop new energy-saving technologies.
set up a
project
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4. 政府应该阻止人们一次又一次地破坏湿地。
The government should ___________ ________ ________ ____________ the wetland again and again.
prevent/stop people from
damaging
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5. 学校为学生提供各种课外活动是重要的。
______ _______ _________ for the school ________ _______ students ________ all kinds of afterschool activities.
It is important to provide
with
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六、根据首字母提示写单词补全短文
Hongze Lake is in the west of Jiangsu Province. It is the fourth 1. l freshwater lake in China.
Hongze Lake has a long 2. h . It was a small group of shallow lakes in the past, and known as Fuling Lake. In the Tang Dynasty, it got the name Hongze Lake. As time went by, the small lake 3. f turned into Hongze Lake.
argest
istory
inally
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There are many 4. k of fishes in Hongze Lake. Hongze Lake is also famous for its plants. Reeds (芦苇) almost cover the whole lake here. And the large-area reeds may even prevent boats from 5. g through.
In the northwest of Hongze Lake, there is a nature 6.
r . It is National Nature Reserve of Hongze Lake 7. W .
inds
etting
eserve
etland
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It was first built on July 1st, 1985. The reserve has an 8. a . of 49,365 hectares (公顷). It is the home to many birds. There are swans, cranes and other national first-class and second-class (一级和二级) 9. r and protected birds here. It offers these birds homes to live in. Every year, a lot of tourists come here to watch these birds and many 10. w lovers come to take photos.
rea
are
ildlife
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七、完形填空
On a cold sunny day, I sat in my car and watched dolphins swim in the sea. 1 , I saw some beached (搁浅的) dolphins.
( )1. A. Suddenly B. Luckily C. Happily D. Excitedly
【点拨】根据“I saw some beached dolphins”可知，“我”突然看到海豚搁浅了。故选A。
A
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It was very 2 for them to be out of water. I knew they needed help.
( )2. A. amazing B. important
C. dangerous D. necessary
【点拨】根据“for them to be out of water”可知，离开水对海豚很危险。故选C。
C
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Without thinking too much, I jumped out of my car and ran to the beach. I first called the police but their 3 were far away.
( )3. A. eyes B. hands C. ears D. knees
【点拨】根据“were far away”可知，转折词后表示警察离得很远，此处hands 有“协助”的意思，符合语境。故选B。
B
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It was a life-or-death moment for the dolphins. I didn’t know 4 to help them, so I put a message (消息) on the Internet.
( )4. A. where B. which C. how D. when
【点拨】根据“to help them”可知，“我”不知道如何帮助海豚。故选C。
C
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I hoped someone could see it and come to 5 those lovely animals.
( )5. A. save B. watch C. enjoy D. find
【点拨】根据“I didn’t know...to help them, so I put a message on the Internet.”可知作者把海豚搁浅的消息发到网上希望有人能够帮助拯救它们。故选A。
A
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Minutes later, three teenage boys from a nearby school 6 first. It was like light that drove the darkness away.
( )6. A. returned B. came C. held D. caused
【点拨】上文提到海豚搁浅了，再根据‘We decided to save the smaller dolphins first and worked together to move them back”可知，这三个青年男孩是最早到达来帮忙的人。故选B。
B
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Then more and more people 7 .
( )7. A. changed B. moved C. left D. arrived
【点拨】根据“Then more and more people”可知，是越来越多的人到这里来拯救海豚。故选D。
D
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We decided to save the smaller dolphins first and worked together to move them back to the 8 water successfully.
( )8. A. dirtier B. quieter C. cleaner D. deeper
【点拨】根据“move them back to the...water”可知，是把它们移回更深的海域。故选D。
D
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To my surprise, 9 the smaller dolphins were saved, none of them left. They stayed in the water and made strange sounds to help the other dolphins.
( )9. A. before B. whenever C. after D. until
【点拨】根据“...the smaller dolphins were saved, none of them left”可知，小海豚获救后，它们都没有离开。故选C。
C
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After we 10 the rescue (救援) work, all the dolphins raised their heads from water and swam around to show their 11 to us. Then, they swam back to the deep sea.
( )10. A. finished B. started C. closed D. tried
( )11. A. fins B. thanks C. fears D. worries
【点拨】10. 根据“After...the rescue work”可知，是完成救援工作后。故选A。
【点拨】11. 根据“all the dolphins raised their heads from water and swam around to show their...”可知，海豚向拯救它们的人表达感谢。故选B。
A
B
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It touched me a lot and made my heart 12 .
( )12. A. broken B. cold C. hurt D. warm
【点拨】根据“It touched me a lot and made my heart...”可知，海豚的做法让作者感到很温暖。故选D。
D
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The dolphins had a great sense of helping each other when there was 13 . I realized that our volunteer group was just like the dolphins.
( )13. A. change B. direction C. trouble D. interest
【点拨】根据“The dolphins had a great sense of helping each other”可知，有困难的时候，互相帮助。故选C。
C
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On such a cold day, 14 cared about getting wet or dirty. We tried our best to save the dolphins and made sure everyone was safe.
( )14. A. anybody B. nobody
C. somebody D. everybody
【点拨】根据“cared about getting wet or dirty”可知，他们都努力拯救海豚，没有人在乎弄湿或弄脏。故选B。
B
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People can always 15 our friends—animals. I will never forget this experience.
( )15. A. learn from B. live on
C. agree with D. worry about
【点拨】根据“People can always...our friends—animals.”可知，我们总会从动物身上学到很多。故选A。
A
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八、阅读下面短文，根据短文内容补全文后表格
The main characteristic (特征) of a bird is feathers. No other animal has feathers. Other important features for birds are wings and hollow bones (中空的骨头).
Birds fly by flapping their wings and using air pressure (压力) to create lift under their wings, just as planes do. The peregrine falcon (游隼) is one of the fastest birds.
It can reach a speed of over 100 miles per hour when diving. Feathers are important to birds because they keep them warm, help them to fly, and provide camouflage (伪装). Hollow bones also help in flying because they help make the bird light enough to fly.
Although an important characteristic of birds is flying, not all birds fly.
Some birds that don’t fly are penguins, kiwis and ostriches. Penguins actually spend much time in the water where they are good swimmers. Ostriches are very fast runners. An ostrich can run faster than a horse!
There are all sizes of birds. Hummingbirds are some of the smallest birds, while ostriches are some of the biggest. Different types of birds eat different things.
Some birds feed on plants, some birds eat insects and others eat other animals like fish, snakes or mice. Birds are also known for their migrating patterns in large groups. Some birds will travel far each season to find places with the right weather for them. A bird is sometimes kept as a pet. The most popular birds for pets are tropical (热带的) birds like parrots. Birds also have a history of helping humans with different tasks. They can carry messages and help hunt.
Read more about birds.
An ostrich can run as fast as 43 miles per hour and grow as tall as 9 feet.
The hummingbird can fly backwards, but it can’t walk.
The egg of a kiwi can weigh as much as 20% of the mother’s body weight.
Birds Characteristics of birds What makes birds 1. _________ from other animals is feathers, wings and hollow bones.
How birds fly Birds flap their wings and 2. ________ air pressure to fly.
Birds are light enough to fly with the 3. ________ of hollow bones.
different
use
help
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Birds Not all birds fly Penguins are good at 4. ____________.
Ostriches are fast runners.
Types of birds Hummingbirds are very small while ostriches are very 5. ________.
Different birds 6. ________on different things like plants and insects.
swimming
big
feed
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Birds Types of birds Some birds fly 7. ________ to find a place to stay each season.
Some birds are kept as 8. ________ and some are trained as helpers.
Fun 9. ________ about birds An ostrich can run at a speed of 43 miles an hour and grow up to 9 feet in 10. ________.
Hummingbirds can’t walk.
far
pets
facts
height
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