— Are these books __________ ? 

   — No, they are not mine. They belong to __________.

A. your; her B. yours; her C. you; hers D. yours; she

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：江蘇省東臺(tái)市2017屆九年級(jí)下學(xué)期第二次模擬考試英語(yǔ)試卷 題型：任務(wù)型閱讀

Mobile phone history

Not long ago, mobile phones were used mainly by business people and government officers in society. In the US, mobile phone users were about 340,000 in 1985. Now there are 205 million mobile phones users in the US. Studies also show that over 50 percent of children in the US own their own personal mobile phones. The mobile phones explosion(激增) has led to a huge number of waste phones. The number of mobile phone users has also increased throughout the world. In the middle of 2005, the number of total users jumped to 2.4 billion worldwide.

Mobile phone waste

When people throw their mobile phones away, they usually end up in the open air. Mobile phones include some materials like lead, mercury and cadmium。 They can go into public drinking water and food and do harm to people’s health. About 75 percent of mobile phone users don’t know their phones away. Instead, they prefer to keep the waste ones sitting around the house as they are not worth very much. People are also afraid that others may know their information if they sell their waste phones. Less than 20 percent of them are recycled each year.

Benefits of recycling mobile phones

Mobile phones have valuable materials inside. The most valuable material is gold, which is used in the phone circuit boards. Recycling can reduce greenhouse gas emissions(排放物) and keep natural resources like gold. If all of the waste phones in the US are recycled, it will save enough energy to offer over 194,000 US families electricity(電) for one year.

How mobile phone recycling works

Many people do not know how mobile phone recycling works. One method of recycling mobile phones is to take the working parts of broken phones, then combine(使結(jié)合) them with the working parts of other used mobile phones to make one ready-to-use mobile phone. Another method of mobile phone recycling is to melt(融化) down and separate parts of the phone in order to get the valuable natural resources, such as gold and platinum. Plastic and glass can also be recycled from used mobile phones.

The used mobile phones

Mobile phone history

●Compared with the condition in 1985, there are1. mobile phone users at present.

●More than2. of the children in America have their own personal mobile phones.

●The mobile phone explosion has3. a huge number of waste phones.

Mobile phone waste

●Some materials, such as lead, mercury and cadmium in the mobile phones are4. to people’s health.

●Three-quarters of the users prefer to keep the waste phones sitting around the house5. of throwing them away.

Benefits of recycling

●Some materials are of great6.. They can be used again.

●It can7. plenty of electricity for American families if the waste phones are recycled.

How recycling8.

●One way is to join working parts of9. or used phones together.

●10. way is to melt down and separate parts of the phones to get the valuable natural resources.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：人教版八年級(jí)上英語(yǔ)同步練習(xí)1Unit 6 I’m going to study computer science Section B 題型：單項(xiàng)填空

The new words are important. Please write ___________.

A. down it B. it down

C. them down D. down them

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：安徽省安慶市區(qū)2016~2017學(xué)年度下學(xué)期期末考試八年級(jí)英語(yǔ)試卷 題型：七選五

A.What can you learn from it?

B.Then what to do next?

C.You often help the homeless people.

D.What a good answer!

E.What do you think is the first step?

F.I think it's really a meaningful story.

G.Good stories make people wise.

A:Have you heard of the story of Si Maguang?

B:Yes. 66.1. We can learn a lot from it.

A:I agree with you. 67.2.

B:It's important for us to keep calm in danger.

A:68.3.

B:Thanks. But I think the most important thing is to get away from danger.

A:I think so. Well! What will you do if there is a big fire?

B:Firstly, I will cover my mouth and nose with a piece of wet cloth.

A:69.4.

B:Stay calm and find the right way to get out of the fire.

A:You're right. 70.5.

B:Yeah, that's always the truth.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：安徽省安慶市區(qū)2016~2017學(xué)年度下學(xué)期期末考試八年級(jí)英語(yǔ)試卷 題型：單項(xiàng)填空

Hurry up! The play _______ for ten minutes.

A. has begunB. had begunC. has been onD. began

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：安徽省安慶市區(qū)2016~2017學(xué)年度下學(xué)期期末考試八年級(jí)英語(yǔ)試卷 題型：單項(xiàng)填空

Mrs Brown gave birth________ a boy ________ May 2nd.

A. to, to B. on, to C. to, on D. on, in

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：江蘇省2016-2017學(xué)年八年級(jí)下學(xué)期期末模擬考試英語(yǔ)試卷3 題型：閱讀理解

Do you find it hard to learn math and history? A recent study carried out by scientists from University of London, may be of help to you. They found that teenagers could get higher marks in math if they studied in the morning and better grades in history if they were taught in the afternoon.

The researchers did a study at a secondary school in Bulgaria over nine years. The results showed that when teenagers had math classes earlier in the day, they scored on average (平均) 7 percent higher in tests than when taught in the afternoon. Lower-ability students did worst when they were studying math in the afternoon.

In history, students taught in the afternoon scored on average 6 percent higher than when they were taught in the morning. However, it doesn’t work for other subjects such as languages or geography.

Velichka Dimitrova, leader of the study, said the findings show that we do better at different times of the day.

“In the morning, our brains are better and fresher, so we are better at doing something that repeats a lot like problem solving, where we require more speed and attention,” Dimitrova told The Telegraph.

“In the afternoon, it seems that this process (過(guò)程) slows down. On the other hand, history is better suitable for the afternoon, when we are more creative and open to discussion,” she said.

Subjects such as foreign languages require both memory and repetition (重復(fù)), and they also need people to be creative. This is perhaps why the time of day has no influence on learning.

Time-of-day effects such as those are believed to be connected to the body clock. This is the system in our bodies that controls when we need to sleep. Some schools in the US and UK have tried out later school starting times for teenagers, whose body clocks change as they grow into adults.

Dimitrova believes schools should take this chance to improve students’ performance just by changing their timetables.

1.History is better suitable for the afternoon because ______.

A. it is an easy subject for students to learn

B. we are more creative and open to discussion

C. our brains are better and fresher in the afternoon

D. it’s easier to pay more attention to the work we are doing

2.It is believed that the time-of-day effects have something to do with a student’s ______.

A. age B. hobby C. body clock D. learning habit

3.Dimitrova is sure that ______.

A. it is better to learn history and math in the morning

B. changing timetables properly can improve students’ performance

C. different times of a day have some influence on learning languages

D. it makes no difference for lower-ability students to learn math in the afternoon

4.What is the main idea of the passage?

A. The good advice on managing a school.

B. The importance of learning history and math.

C. The good ways to get higher scores in history and math.

D. The influence of timetables on history and math learning.

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：江蘇省2016-2017學(xué)年八年級(jí)下學(xué)期期末模擬考試英語(yǔ)試卷3 題型：單項(xiàng)填空

People in Xinghua ______ walk or ride bikes, but now they ______ taking the bus or riding cars.

A. used to; used to

B. were used to; used to

C. were used to; are used to

D. used to; are used to

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：2017-2018學(xué)年八年級(jí)英語(yǔ)上冊(cè)（人教版）：Unit 10 綜合水平測(cè)試 題型：單項(xiàng)填空

Ms.Lin has much ________ of teaching.She is a wonderful teacher.

A. temperature B. experience

C. difference D. discussion

查看答案和解析>>

同步練習(xí)冊(cè)答案