仁爱版七年级下册英语Unit 8 Our blue planet Exploring the topic 知识点总结及练习(含答案)

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仁爱版七年级下册英语Unit 8 Our blue planet Exploring the topic 知识点总结及练习(含答案)

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仁爱版七年级下册英语
Unit 8 Our blue planet Exploring the topic 知识点总结
一、重点单词
1. 环境与自然类
environment(环境)、pollution(污染)、recycle(回收)、waste(废物)、energy(能源)、climate(气候)、resource(资源)、earth(地球)、ocean(海洋)、forest(森林)、wildlife(野生动物)、planet(星球)
2. 动植物类
animal(动物)、plant(植物)、tree(树)、fish(鱼)、bird(鸟)、insect(昆虫)、endangered(濒危的)、species(物种)、habitat(栖息地)
3. 行动与建议类
protect(保护)、save(节约)、reduce(减少)、reuse(重复使用)、clean(清洁)、pollute(污染)、harm(伤害)、plant(种植)、collect(收集)、volunteer(志愿者)
4. 其他类
healthy(健康的)、dangerous(危险的)、important(重要的)、necessary(必要的)、global(全球的)、future(未来)、community(社区)
二、重点短语
1. 环保行动类
save energy(节约能源)、reduce waste(减少浪费)、recycle bottles(回收瓶子)、clean up the park(清理公园)、plant trees(植树)、protect wildlife(保护野生动物)、turn off lights(关灯)、use public transport(使用公共交通)
2. 描述环境问题类
air pollution(空气污染)、water pollution(水污染)、climate change(气候变化)、endangered species(濒危物种)、global warming(全球变暖)、throw rubbish(扔垃圾)、cut down trees(砍伐树木)
3. 建议与倡议类
take care of the earth(爱护地球)、make a difference(有所作为)、join a volunteer group(加入志愿者团体)、spread awareness(传播意识)、work together(共同努力)
三、重点句型
1. 表达环保建议
We should recycle paper to save trees.(我们应该回收纸张以保护树木。)
Don’t throw rubbish into the river.(不要把垃圾扔进河里。)
It’s important to turn off the lights when you leave the room.(离开房间时关灯很重要。)
2. 描述环境问题
Air pollution is harmful to our health.(空气污染对健康有害。)
Many animals are losing their habitats because of deforestation.(由于森林砍伐,许多动物正在失去栖息地。)
The earth is getting warmer because of human activities.(由于人类活动,地球正在变暖。)
3. 倡议与呼吁
Let’s work together to protect our blue planet!(让我们一起努力保护我们的蓝色星球!)
Everyone can make a difference by doing small things.(每个人都可以通过小事产生影响。)
Join us to clean up the beach this weekend!(加入我们,周末清理海滩吧!)
四、重点语法
1. 情态动词 should 的用法
结构:主语 + should + 动词原形
例句:
We should use cloth bags instead of plastic ones.(我们应该用布袋代替塑料袋。)
You shouldn’t waste water.(你不应该浪费水。)
2. 现在进行时表未来计划
结构:be动词(am/is/are) + 动词ing
例句:
We are planting trees next Sunday.(我们下周日要植树。)
They are cleaning the river this afternoon.(他们今天下午要清理河流。)
3. 不定式作主语
结构:It’s + 形容词 + to + 动词原形
例句:
It’s necessary to save water.(节约用水是必要的。)
It’s easy to recycle paper.(回收纸张很简单。)
五、练习题
(一)单词拼写
1. We need to protect the enviro__________ for future generations.
2. Many animals become endang__________ because of hunting.
3. We should red__________ the use of plastic bags.
4. Clim__________ change is a serious problem.
5. Let’s cle__________ up the park this weekend.
(二)短语翻译
1. 节约能源 __________
2. 空气污染 __________
3. 加入志愿者团体 __________
4. 全球变暖 __________
5. 重复使用塑料袋 __________
(三)句型转换
1. We should plant more trees.(改为否定句)
We __________ plant more trees.
2. It’s important to save water.(改为同义句)
__________ important.
3. They are cleaning the river tomorrow.(对划线部分提问)
__________ are they __________ tomorrow
(四)用所给动词的适当形式填空
1. She __________ (join) a volunteer group next month.
2. We __________ (recycle) paper every week.
3. It’s necessary __________ (protect) endangered animals.
4. They __________ (clean) the beach last Saturday.
5. You __________ (should) throw rubbish here.
(五)阅读理解
The earth is our home, but it is facing many problems. Air pollution makes it hard to breathe in some cities. Water pollution kills fish and makes rivers dirty. Many animals are in danger because their habitats are disappearing. However, we can help! For example, we can plant trees to make the air clean. We can also recycle bottles and cans to reduce waste. If everyone does something small, our planet will become better.
1. What problem makes it hard to breathe in cities
A. Water pollution. B. Air pollution. C. Noise pollution.
2. Why are many animals in danger
A. They have no food. B. Their habitats are disappearing. C. People hunt them.
3. How can we make the air clean
A. By recycling bottles. B. By planting trees. C. By saving energy.
4. What should we do to reduce waste
A. Recycle bottles and cans. B. Turn off lights. C. Use public transport.
5. What is the main idea of the passage
A. The earth is healthy. B. We can help protect the earth. C. Pollution is not a problem.
答案
(一)单词拼写
1. environment
2. endangered
3. reduce
4. climate
5. clean
(二)短语翻译
1. save energy
2. air pollution
3. join a volunteer group
4. global warming
5. reuse plastic bags
(三)句型转换
1. shouldn’t
2. Saving water is
3. What; doing
(四)动词填空
1. will join / is going to join
2. recycle
3. to protect
4. cleaned
5. shouldn’t
(五)阅读理解
1. B
2. B
3. B
4. A
5. B

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