Unit 13 We're trying to save the earth! 知识点题库

Please    the lights when you leave the classroom.

阅读理解

    E-waste is fast becoming a serious problem around the world.This report will examine this problem and provide some possible ways to solve it.

    We live in a society that is producing and using electronics (电子产品) all the time.It is often cheaper to buy new products than to repair old ones.Also,through clever advertising,companies always encourage people to change their old TVs,mobile phones and computers for the latest models.E-waste is created when we throw away old ones.In the EU alone,about 8,700,000 tons of E-waste is produced each year.Sadly,just over 1,000,000 tons is recycled.

    Burying (填埋) E-waste or burning it causes setious problems for the environment.Electronics have dangerous things in them.These things can then get into the ground or pollute the air when they are burnt.

    In recent years,  ▲   .However,their plans are not always managed properly.Sometimes electronics are just sent to poor countries such as Ghana.Here they are often burnt in public areas,which is very bad for people's health.Setting up recycling centers is a good way to solve this problem.E-cycling centers could recycle the parts that can be reused and deal with the rest properly.

    Another way is to make producers responsible for their used products.This means that producers must take back old products which are no longer wanted.They should then make sure they are properly recycled or reused.

    As for us,we should try to cut down on E-waste.Change electronics only when we have to.And don't buy a product just to have the latest model.

    E-waste is a serious problem in the modern world.Both producers and users must take actions and try to keep it to the smallest amount.

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中所给单词的正确形式填空。

    "When it comes to the Earth, there is no time to waste," says the Earth Day Network. And that is right. (protect) our environment is very important. World Earth Day (create) in 1970 to ask more people to protect our environment. On April 22 of each year, people around the world celebrate Earth Day.

    Every year there is a special topic, and in 2016 it was "Trees for the Earth''， Earth Day that year was all about planting trees. They planned to plant 7. 8 billion trees within the next five years.

    That's a big goal, and you might wonder why (tree) are so important. Because they can take in carbon dioxide(CO₂) and improve the air quality(质量). CO₂ is an element(成分) in our atmosphere, but humans make too much of it. person makes about 2.3 tons a year, which is bad for the environment.

    Planting new trees is important because people cut down a huge number of trees. Last year, there were 3 trillion trees in world, about 139 billion in China. But according to China Daily, the world's total number has been almost cut in half since human civilization(文明) began.

That's 15 billion trees are cut down every year.

    So we need (plant) more to make up for (弥补) those we lost. One tree can take in 21. 8 kilograms of CO₂ per year. And it's still one of (cheap) and best ways to get rid of CO₂.

    But don't forget that we can also help protect the environment by (cut) down on the energy(能源) we use every day. Every little thing helps.

The country is rich in oil and (煤).

阅读下面邮件，将地图上的A、B、C、D四个地点填入第（1）-（4）相应的空格中，并完成第（5）小题。

Dear Mom and Dad,

    How are you? I hope everything is okay. I'm doing well.

    Here at Valley College, I'm very busy with my English classes at the ESL Center. My teacher says, "It's important to practice English outside the classroom." That's why I'm writing this e-mail in English!

    Sometimes I'm a little afraid to use my English, but people are usually nice. I speak English with others here in the dorm(宿舍) and the dining room.

    I feel very comfortable here. This college has everything! It's like a small city. The student store is next to my dorm. There's a beautiful garden across from the student store. The health center is on the corner, across from my dorm. The sports center is on the corner of College Avenue and Garden Street, There are three coffee shops on College Avenue!

    There is one thing the college doesn't have, Mom: your cooking!

Love,

Sunny

She has a very (科学的) way to deal with political problems.

Congratulations________ all the winners ________ your excellent grades!

My brother watched the football match instead of ________ his homework.

You'd better     your shoes before you go into her bedroom. Your shoes may make her new carpet dirty.

When they came to the forest, they suddenly heard somebody          for help.

There are many a of running.

Let's' meet at the school g tomorrow morning.

他们正考虑如何好好利用这些旧东西。

They are thinking about how to these old things .

I dream that some day I can a (承担得起) a wonderful trip to Australia.

Please don't use the p (塑料) bowl. It's bad for health.

—Listen! Is that Linda playing the piano in the room?

—No. It_________ be Linda. She has gone to London.

为了减少空气污染，我们应该步行或乘校车到校。

To air pollution, we should walk or take a school bus to school.

We should try to (回收利) all our waste paper.

The air is badly pollutedthere are many factories.

The large, (铁)gate was locked.