题目内容

用括号内所给单词的适当形式填空,每空格限填一词。

1.We should often ask ____________ (we) how we can do more for our country.

2.World Environment Day is on the ___________ (five) of June.

3.The teacher offered the teenagers some valuable ______________ (advice).

4.John thinks people will help him if he asks for help ___________ (polite).

5.The higher the mountain is, the __________ (thin) the air is.

6.It’s a (an) __________ (usual) experience, few people have chances to do it.

7.What a ___________ (sun) day! Let’s go hiking.

8.What do you think of the singing _________________ (compete) yesterday?

练习册系列答案
相关题目

Learning about the environment is very important. There are many good books that will help you learn. To get started, ask your teacher or a librarian for some suggestions. You can also look at some good websites with information about the environment and climate change. Climate change may be a big problem, but there are many little things we can do to make a difference.

Driving a car or using electricity is not wrong. We just have to be smart about it. Some people use less energy by carpooling. For example, four people can ride together in one car instead of driving four cars to work. Whenever we use electricity, we put greenhouse gases into the air. By turning off lights, the television and the computer when they aren’t needed, you can help a lot.

Don’t buy products that use too much energy. Some products, like certain cars, are made specially to save energy. These don’t pollute as much, either. Products like computers, TVs, and VCRs with the ENERGY STAR label(标签)R are made to save energy. Buying products with these labels will help protect the environment.

Buy recyclable products instead of (代替) non-recyclable ones. Recyclable products are usually made out of things that have already been used. It usually takes less energy to make recyclable products than to make new ones. So when you go shopping, look for the recycle mark on the package—three arrows that make a circle. The less energy we use, the better.

根据短文内容,选择正确答案。

1.From the passage, we can learn that .

A. turning off the electricity when it isn’t needed can save a lot of energy

B. electricity will cause great trouble to our environment

C. cars using less energy will not put greenhouse gases into the air

D. recyclable products are marked with the ENERGY STAR label R

2.Which of the following can be the writer’s opinion?

A. No pains, no gains.

B. Rome was not built in one day.

C. Little things can make a big difference.

D. Nothing is difficult to the man who will try.

3.Which one is NOT TRUE according to the passage?

A. Driving a car is not wrong.

B. Don’t buy products that use too much energy.

C. We should buy non-recyclable products.

D. The less energy we use, the better.

根据短文内容,判断下列句子正误。正确的用“A”表示,不正确的用“B”表示。

Indian scientists have designed a new device (设备) that

they hope will solve one of the biggest problems with the use

of solar energy. They call the device a solar tree. Solar trees

have metal “branches” (分枝). Each branch holds a solar panel (太阳能电池板). These panels have flat surfaces that collect energy from the sun and turn it into electricity.

       Daljit Singh Bedi is the chief (首席的) scientist at the Council of Scientific and Industrial Research in India. Bedi says the shape of the solar trees makes it possible to fit more solar panels in a space than traditional systems do. This means less land would be needed to produce solar energy. “It takes about four square meters of space to produce energy. However, 400 square meters of space would be required in the past to produce the same energy,” he says.

       Scientists believe the energy that a solar tree collects will be enough to power five homes. The solar tree will make it easier to provide solar energy for homes in cities. The trees will also take less space from farmers in the countryside. And that way people are able to use 10 to 15 percent more energy.

       Amit Kumar is a senior engineer of the Energy and Resources Institute in New Delhi. He says that it is still not clear how useful these new developments in solar power technology are. “Only when we put those trees on a large scale (规模) will we be able to get that answer,” he says.

1.Indian scientists have solved a big problem with the use of solar energy.

2.Solar trees can save land and produce more energy.

3.Not every scientist agrees that solar trees are useful at present.

4.Solar trees are widely used in India.

5.The passage mainly introduces how to use solar energy.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网