Right now, for a short period of time, the Ea...

Right now, for a short period of time, the Earth has two moons. One moon is the one you know. The other is a tiny car-sized moon that showed up in the last few years and could leave within tile next month.

In mid-February, two scientists at the Catalina Sky Survey noticed a moving dot on their computer screens. That seemed unusual, because most of the stars on their screens appear to stay in one position.

At first, scientists wondered if it was a human-made object, like part of a rocket. But after more measurements, it seems clear that the object is a asteroid (小行星)—a chunk of rock floating in space.

There are many asteroids in space, but most of those in our solar system are orbiting (环绕) the Sun. The object the scientists had noticed was orbiting the Earth. The asteroid had been orbiting the Sun, but it passed too close to the Earth and was pulled in by the Earth's gravity.

The object has been given the name "2020 CD3". When we think of a moon, we most likely think of the Earth's moon. But the word "moon" can actually mean any body that goes around a planet. That makes 2020 CD3 a moon of the Earth.

Or perhaps a mini-moon. Scientists say 2020 CD3 is probably only about 6-12 feet (2-3.5 meters) wide when measured through the middle.

What's very clear is that 2020-CD3 is not a very stable moon. It appears to have been drawn in by the Earth's gravity about three years ago, and has since followed a very unusual path.

The Earth's main moon has a very stable orbit around the Earth. The orbit taken by 202Q CD3, on the other hand, circles around wildly.

This isn't the first time the Earth has load a mini-moon. In 2006, there was also an asteroid caught by the Earth's gravity. It was named 2006 RH120, and it only stayed around for about a year.

2020 CD3 will not probably remain under the power of Earth's gravity for long. Scientists think that the mini-moon will leave by April.

But for now, the Earth has two moons.

1.How did 2020 CD3 become a moon of the Earth?

A.It appeared on the computer screens. B.It was sent up into space by human.

C.It was caught by the Earth's gravity. D.It orbited the Sun in an unusual way.

2.Which of the following best explains the underlined part in Paragraph 7?

A.2020 CD3 is a large piece of rock floating in space.

B.2020 CD3 can't stay in one position for a long time.

C.2020 CD3 travels too close to the Earth when orbiting the Sun.

D.2020 CD3 has always changed its path since becoming a moon.

3.What is the best title for the passage?

A.The Earth Has a New Moon For Now B.The Research On the Moon 2020 CD3

C.Two Moons For the Earth From Now On D.The Earth Needs the Mini-moon For Long

九年级英语阅读单选中等难度题查看答案及解析

—Where is your son Jimmy living now?

—He　　 the city of Zhenjiang, China for two years.

A.has been in B.has been to

C.has gone to D.has come to

九年级英语单选题中等难度题查看答案及解析

—Where is your son Jimmy living now?

—He 　　 the city of Zhenjiang, China for two years.

A. has been in 　　　　　 B. has been to　

C. has gone to　 　　　　 D. has come to

九年级英语单项填空中等难度题查看答案及解析

— Where is your son Jimmy living now?

— He________the city of Yangzhou, China for two years.

A.has come to B.has been to C.has gone to D.has been in

九年级英语单选题中等难度题查看答案及解析

A short Chinese man is one of the biggest man in the world right now. He is Ma Yun, the Chairman of Alibaba Group. On Sept,19,2014 Alibaba went public(上市) and raised 25 billion dollars. Ma, a former English teacher, has become the richest man in China.

Bora in 1964 in Hangzhou, Zhejian, Ma grew up as a happy kid. When he was a teenager, he wanted to learn English. Every morning, he got up at 5 a.m rode his bike for 40 minutes to a hotel near the West Lake and talked with foreigner tourists in English. He did it for nine years, rain or shine.

The experience made him an excellent English speaker and also opened his eyes to the outside world. In 1994, Ma heard about Internet for the first time. And on a trip in 1995 to the US, Ma was shown in Internet for the first time. He searched the word “beer” on Yahoo, and found that there was nothing there about China. Seeing the chance, Ma returned to China and set up a website called China Pages without even knowing much about computers.

Four years later, Ma, his wife and his friends set up Alibaba in Hangzhou. He believed in the Internet business potential(潜力) when few other Chinese did. 15 years later, developed into the world’s largest e-commerce company(电子商务公司)，owning popular shopping websites like Taobao and Tmall.

九年级英语书面表达中等难度题查看答案及解析

A short Chinese man is one of the biggest men in the world right now. He is Jack Ma (Ma Yun), the Chairman（董事局主席）of Alibaba Group. On Sept. 19,2014, Alibaba went public（上市）and raised $25 billion（十亿）. Ma, a former English teacher, has become the richest man in China.

Born in 1964 in Hangzhou, Zhejiang, Ma grew up as a happy kid. When he was a teenager, he wanted to learn English. Every morning, he got up at 5a.m, rode his bike for 40 minutes to a hotel near the West Lake and talked with foreign tourists in English. He did it for nine years, rain or shine.

The experience made him an excellent English speaker and also opened his eyes to the outside world. In 1994, Ma Yun heard about the Internet. And on a 1995 trip to the US, Ma was shown the Internet for the first time. He searched the word “beer” on Yahoo, and found that there was nothing there about China. Seeing the chance, Ma returned to China and set up a website called China Pages without even knowing much about computers.

Four years later, Ma, his wife and his friends set up Alibaba in Hangzhou. He believed in the Internet business potential（潜力）when few other Chinese did, 15 years later, Alibaba has developed into the world’s largest e-commerce company（电子商务公司），owning popular shopping websites like Taobao and Tmall.

1.The underlined word “it” in the second paragraph refers to（指的是）______.

A. riding a bike 　　　　 　　 B. teaching English

C. playing on computers.　 D practicing English with foreigners

2. In 1995, Ma Yun was shown ____ for the first time in the US.

A. beer on Yahoo　　　　 B. the Internet

C. Chinese Pages　　　　　 D. e-commerce

3. Alibaba was set up in the year ___________.

A. 1994　　　　　　 B. 1995　　　　　　　 C. 1999　　　　　　 D. 2004

4.Which of the following is true according to the passage?

A. The experience that he talked with foreign tourists in English made Ma Yun an excellent English speaker.

B. Alibaba is set up in 1964

C. Ma Yun used to be a Chinese teacher.

D. Ma Yun went to the US in 2014 for the first time.

5.What is the passage mainly about?

A. Something about Ma Yun

B. The history of Alibaba Group

C. How Ma Yun learned English.

D. The development of e-commerce in China

九年级英语阅读理解中等难度题查看答案及解析

A short Chinese man is one of the biggest men in the world right now.　 He is Jack Ma（Ma Yun），the Chair-man（董事局主席）of Alibaba Group. On Sept. 19，2014，Alibaba went public（上市）and raised＄25billion（十亿）. Ma，a former English teacher，has become the richest man in China.

Born in 1964 in Hangzhou，Zhejiang. Ma grew up as a happy kid.　 When he was a teenager he wanted to learn English. Every morning，he got up at 5 a.m.,　 rode his bike for 40 minutes to a hotel near the West Lake and talked with foreign tourists in English. He did it for nine years ， rainy or shine。

The experience made him an excellent English speaker and opened his eyes to the outside world. In 1994，Ma Yun heard about the Internet. And on a 1995 trip to the US ，Ma was shown the Internet for the first time. He searched the word “beer” on Yahoo，and found that there was nothing there about China. Seeing the chance，Ma returned to China and set up a website called China Pages without even knowing much about computers.

Four years later，Ma，his wife and his friends set up Alibaba in HangZhou. He believed in the Internet business potential（潜力）when few other Chinese did.15 year later，Alibaba has developed into the world’s largest e-commerce company（电子商务公司），owning popular shopping　 websites like Taobao and Tmall.

1.The underlined word “it” in the second paragraph refers to（指的是）　　　　 .

A. riding a bike

B.teaching English

C. playing on computers

D. practicing English with foreigners

2.Which of the following is NOT true according to the passage？

A. The first website Ma Yun set up was Yahoo.

B. Alibaba raised a lot of money after it went public.

C. Ma Yun began to learn English when he was a teenager.

D. Ma Yun believed that lnternet business world have a bright future.

3.What does the passage mainly tell us ？

A. How Ma Yun made history.

B. The history of Alibaba Group.

C. How Ma Yun learned English

D. The development of e-commerce in China.

九年级英语阅读理解中等难度题查看答案及解析

A short Chinese man is one of the biggest men in the world right now. He is Jack Ma ( Ma Yun), the Chairman (董事局主席) of Alibaba Group. On Sept. 19, 2014, Alibaba went public(上市) and raised $25 billion. Ma, a former English teacher, has become the richest man in China.

Born in 1964 in Hangzhou, Zhejiang, Ma grew up as a happy kid. When he was a teenager, he wanted to learn English. Every morning, he got up at 5 a.m., rode his bike for 40 minutes to a hotel near the West Lake and talked with foreign tourists in English. He did it for nine years, rain or shine.

The experience made him an excellent English speaker and also opened his eyes to the outside world. In 1994, Ma Yun heard about the Internet for the first time. And on a 1995 trip to the US, Ma was shown the Internet for the first time. He searched the word “beer” on Yahoo, and found that there was nothing there about China. Seeing the chance, Ma returned to China and set up a website called China Pages without even knowing much about computers.

Four years later, Ma, his wife and his friends set up Alibaba in Hangzhou. He believed in the Internet business potential(潜力) when few other Chinese did. 15 years later, Alibaba has developed into the world’s largest e-commerce company (电子商务公司), owning popular shopping websites like Taobao and Tmall.

1.The underline word “ it” in the second paragraph refers to _____.

A. riding a bike

B. teaching English

C. playing on computers

D. practicing English with foreigners

2.In 1995, Ma Yun was shown ____ for the first time in the US.

A. beer on Yahoo　　　　 B. Chinese pages

C. the Internet　　 D. e-commerce

3.Alibaba was set up in the year______.

A. 1994　　 B. 1995　　　　　　　 C. 1999　　　 D. 2004

4. Which of the following is NOT true according to the passage?

A. The first website Ma Yun set up was Taobao.

B. Alibaba raised a lot of money after it went public.

C. Ma Yun began to learn English when he was a teenager.

D. Ma Yun believed the Internet business would have a bright future.

5.What does this passage mainly tell us?

A. How Ma Yun made history.

B. The history of Alibaba Group

C. How Ma Yun learned English.

D. The development of e-commerce in china.

九年级英语阅读理解中等难度题查看答案及解析

1.It’s __________(possible) to finish the job in such a short time. We need two more days.

2.Now people hope to eat healthily and begin to care about the _________(safe) of food.

3.They are looking forward to _________(win) the first prize in the coming competition.

4.Which do you think is _________ (interesting), going on a picnic of going fishing?

5.Follow that _________(doctor) advice and you will get better soon.

6.It’s reported that some wild animals __________(face) the danger of dying out now.

7.I can’t understand your suggestion. Would you mind explaining it __________(clear)?

九年级英语补充句子极难题查看答案及解析

I know that boy has the ability ________ the differences between the two pictures in a short time.

A. finds out　　 B. found out　　 C. finding out　　 D. to find out

九年级英语单选题简单题查看答案及解析