–How long ____ you _____ the book?

- Since two weeks ago.

A. did , buy B. have , bought C. have ,had

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源：北京市房山區(qū)2019屆九年級(jí)期末測(cè)試英語(yǔ)試卷 題型：閱讀單選

Bottled water has become the choice for people who are healthy and thirsty. Bottled water is all over the world. But some say the planet's health and people's health may be suffering from it.

The idea that bottled water is safer for humans may not be true. The Natural Resources Defense Council of America said, “There is no promise that because water comes out of a bottle, it is cleaner or safer than water from the tap.” Another New York City-based action group added that some bottled water is “really just tap water in a bottle—sometimes cleaner, sometimes not.”

It is not tested that bottled water is better than tap water. Nick Reeves from the Chartered Institution of Water and Environmental Management said, “The high mineral content(礦物質(zhì)含量) of some bottled water makes them not good for feeding babies and young children.” Also, most bottled water doesn't have fluoride(氟化物), which can make teeth stronger. Kids are drinking more bottled water and less fluoridated tap water, and some say that's behind the recent rise in bad teeth.

Storing is another problem. Placed near heat, the plastic bottles can produce bad chemicals into the water. Store bottled water appropriately. Bottled water, like many foods and drinks, should be stored in the appropriate way to keep the quality and safety of the product. Keep bottled water out of the light and heat.

According to the Environmental Protection Agency, some 2.7 million tons of plastic are used worldwide to bottle water each year. The plastic can take between 400 and 1,000 years to break down.

For energy use, plastic bottles are also not cheap. One report said that if water and drink bottlers had used 10 percent recycled materials in their plastic bottles, they would have saved about 72 million gallons of gas.

So, if you are worried about the effect of bottled water on the earth, you can take the following four steps:

Step 1. Drink from your tap. Unless your government warns against this, it should be fine.

Step 2. Get a container(容器). Carry your tap water in a steel or a lined drinking container, and clean it between uses.

Step 3. Keep it cool. Don't drink from a bottle that has been sitting in the sun, don't store it near chemicals, and don't reuse plastic bottles.

Step 4. Choose glass containers over plastic if possible. When finished, recycle!

1.What can we learn about bottled water from the passage?

A. Plastic bottles are not expensive to make.

B. It is tested that bottled water have high fluoride.

C. Bottled water may cause the rise in bad teeth.

D. The plastic can be broken down in less than 400 years.

2.According to the passage, the writer probably agrees that ______.

A. bottled water is safer and cleaner than tap water for humans

B. plastic bottles can produce bad chemicals into the water in cool places

C. babies and young children need bottled water with high mineral content

D. gas can be saved if water and drink bottlers had used recycled plastic bottles

3.The writer mentions the four steps to show that ______.

A. we can do something to reduce the bad effect of bottled water

B. we can improve the bottled water by storing it in right places

C. the government is against people to drink tap water in recent years

D. scientists can invent some new materials to produce bottled water

4.What is the best title of the passage?

A. Bottled water and tap water.

B. Be careful to drink bottled water.

C. The disadvantages of bottled water.

D. How to drink bottled water safely.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：北京市房山區(qū)2018-2019學(xué)年七年級(jí)上學(xué)期期末考試英語(yǔ)試卷 題型：單選題

--- ________ does your sister do, Mike?

--- She is a teacher.

A. What B. Who C. Whose D. When

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：黑龍江省哈爾濱市9年級(jí)英語(yǔ)9月份驗(yàn)收試卷（，） 題型：完型填空

Cooperation (合作) and competition are both important. They are both necessary for a person to achieve _______in his life.

Learn to be cooperative. No one likes a selfish （自私的）or greedy(貪婪的) person.________, everyone likes a cooperative and friendly person. Everything we do today, _______in doing business or making friends, depends on our ability to get on with one another. In our society, most tasks need the cooperation of many people so that they can ________ efficiently(有效率). So we must try to be cooperative. Each person is like a small part of a machine. If only one part is out of order, the machine can’t be running well_________, transportation and communication systems are fast ______and people all over the world can keep in touch with each other________. It’s hard for a person who is always from the society to have a deep understanding of the world he lives in and to finish a feat(功績(jī)) in his career (生涯). Cooperation is becoming more and more important for a person ________a good life.

Being competitive also has a place in life. If you want to get more success and be better than others, you must work harder and study more carefully. The desire to succeed and do better than others _______us to work harder. If there were no competitions, a sports meeting would never be exciting and successful, and we could never have champions.

We cooperate with others to be more competitive, we ________ to earn a better environment for cooperation leads us to realize our goals and meet our needs.

1.A. success B. successful C. succeed

2.A. But B. However C. So

3.A. which B. if C. whether

4.A. finish B. being finished C. be finished

5.A. Except B. Beside C. Besides

6.A. develop B. developing C. developed

7.A. easier B. more easily C. more difficultly

8.A. getting B. to get C. got

9.A. encourage B. encourages C. to encourage

10.A. complete B. compare C. compete

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：黑龍江省哈爾濱市9年級(jí)英語(yǔ)9月份驗(yàn)收試卷（，） 題型：單選題

--Interstellar《星際穿越》is the best movie ______I have seen so far.

--I can’t agree with you more. There is not only a wonderful English poem but also some knowledge of Physics in it.

A. who B. which C. that

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：黑龍江省哈爾濱市9年級(jí)英語(yǔ)9月份驗(yàn)收試卷（，） 題型：單選題

--Your life only depends on yourself. Please don’t ask more from others.

--Yeah, life is just in our hand. We must treat it well and try to be, in my opinion, as __________ as possible.

A. careful

B. carefully

C. the most carefully

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2019年春人教版英語(yǔ)七年級(jí)下冊(cè)：Unit 3 自我檢測(cè) 題型：單選題

It's interesting ________ in the river in summer.

A. swim B. to swim

C. swims D. swimming

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：牛津譯林版2019年中考英語(yǔ)專題練習(xí)（8A Unit7） 題型：單選題

The temperature will _________above zero these days.

A. go B. drop C. stay D. fall

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：北京西城區(qū)2019屆九年級(jí)上學(xué)期期末質(zhì)量檢測(cè)英語(yǔ)試卷 題型：單選題

My grandfather ________ in this city for over 60 years. He knows every corner of it.

A. lives B. has lived

C. is living D. will live

查看答案和解析>>

同步練習(xí)冊(cè)答案