题目内容

【题目】It’s not easy for primary students ______ themselves freely in class.

A. express B. to express

C. expressing D. expressed

【答案】B

【解析】

试题分析:句意:对小学生来说在课堂上自由表达自己。根据题干分析此句中it是形式主语,后面要用不定式做真正的主语,所以应选B。

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【题目】

Left foot, right foot, left foot, right foot... you can travel fast or slow. The movement of your fee. gets you where you need to go. But it also gets you so much more! Walking is such a basic, simple exercise that almost everyone can take part in it.

Walking helps you in many ways. First, it makes your heart stronger. Studies show regular walking lowers your chance of heart disease. Walking for 30 minutes per day also helps control blood pressure. It can reduce your chance of having a stroke or developing some cancers, too. Want to lose weight! You need to bum 600 more calories each day you eat. Walking is the easiest way to do that.

Walking helps your brain health. As people age, their brains don’t work as well. One in 14 people over 65 years old suffers from memory loss. Older people who walk six miles or more per week keep their brains in better shape. Putting one foot in front of the other isn’t difficult. You don’t have to think about it, so you can consider other things. You can consider problems or think of ideas. You can think over conversations again or just remember funny things that have just happened recently.

Walking is also good for your wallet. It saves the cost of going to a gym. Walking quickly for 150 minutes each week to get a good workout. A pedometer (计步器) can get you started. Begin with trying to take 1,000 steps in 10 minutes to set the right pace.

You can make walking part of your day. Instead of parking right next to your office, park a distance away— and walk. Do not take the elevatorbut walk. You can even have walking meetings. They are what they sound like. Rather than sit, you walk and talk things over.

Make walking a habit, and see how it makes you feel.

1 your way to better health

Introduction

Walking is such a basic, simple exercise that’s 2 for almost everyone.

Advantages

Stronger hearts

▲ Walking lowers your chance of 3 disease.

▲ Walking reduces your chance of having a stroke or developing some cancers.

▲ Walking helps you 4 your weight.

5 brains

Walking can keep old 6 brains in good shape because walking is 7. While walking, they can think about other things.

Thicker wallets

You needn’t 8 any money in going to a gym.

Ways

▲ Park your car 9 away from your office and walk.

▲ Do not take the elevator, but walk.

▲ Have walking meetings.

Conclusion

Make walking a 10, and see how it makes you feel.

【题目】

A bike road in Krommenie, a city in the Netherlands, isn't just helping people get around--it's also producing energy. The road, named SolaRoad, is paved with solar batteries, which use the power of the sun to make electricity.

The project is created to show that the places where people ride, walk, or drive can also serve to produce energy. And the solar-powered road is doing a better job than expected. So far, it has created enough electricity to power three houses for a year.

Many cities already cover rooftops with solar panels(面板). By using renewable sources of energy, cities can decrease their dependence on fuels, coal, oil, and natural gas. Renewable sources of energy don't get used up or create pollution as fuels do.

Roads can provide even larger space than roofs to harvest energy from the sun. Sten de Wit, one of the researchers behind SolaRoad, says, “In the Netherlands, we have about 140,000 kilometers of roads. It's a huge area, more than all of the rooftops combined."

To create the experimental bike road, the SolaRoad team lay down concrete slabs(混凝土板) with rows of solar batteries on. A layer of strong glass covers and protects the batteries. Sunlight passes through the glass and into the batteries, which turn the sunlight into electrical energy.

Although the bike road is expensive to build, with the energy it produces, it could pay for itself within 15 years. By building solar-powered bike roads, cities could produce enough energy to power street lamps, traffic lights, and even electric cars. Most people don't notice that the bike road is different from a traditional street. Sten de Wit says, “That is exactly what we want: it does whatever it has to do to be a proper road while harvesting solar energy at the same time."

1What does “it” in Paragraph 2 refer to?

A.the projectB.energyC.the solar-powered roadD.a better job

2The underlined word “renewable” in paragraph 3 means__________.

A.can be used onceB.never be used before

C.can be easily replacedD.able to be made again

3Which of the following is NOT TRUE about SolaRoad?

A.It uses the power of the sun to make electricity

B.Netherlands has about 140,000 kilometers of SolaRoad.

C.There is a layer of strong glass on it.

D.It is doing a better job than people expected.

4From the last paragraph, we can infer that________.

A.the solar-powered bike road is worth building

B.the SolaRoad could produce enough electricity for the whole city

C.the SolaRoad looks different from the traditional road

D.most cities can’t afford to build the solar-powered bike road

5What is the main idea of the passage?

A.New solar batteries take the place of traditional solar panels

B.The advantages of using renewable resources in cities

C.A new kind of solar-powered bike gets ready to surprise you

D.A bike road in the Netherlands produces energy from the sun

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