Even the closest star to us, Proxima Centauri...

Even the closest star to us, Proxima Centauri, is very far away.

Scientists would love to get a closer look at this star and its planets. But the fastest spaceship ever built would take nearly 75,000 years to get there. That's just too long!

Scientists have come up with a plan-send a group of very tiny spaceships. Why tiny? The smaller something is, the easier it is to make it go fast. They're hoping a group of stamp-sized ships(Star Chips)could travel fast enough to reach Proxima Centauri in just 20 years. There they could take pictures and collect information. If there is any life there, the Star Chips might be able to find it-and say hello from Earth.

Each Star Chip will carry a tiny camera, thrusters, and sensors. It will ride a sail about the size of a picnic table. The plan is to send many, in case some don't make it.

Scientists hope that their tiny Star Chips will be able to reach a speed of 134 million miles(216 million km)an hour. First, the rocket will take the Star Chips to space. Once in space, they will open their shining sails. Then, people on Earth will shoot out lasers at the sails. All those lasers shot at the sails will push the Star Chips so fast that they will reach the moon in just two minutes.

The computer chip at the heart of each Star Chip is tiny like the ones in mobile phones. None of the other technologies has been built yet. The hardest part will be the lasers, which have to be extremely powerful. The team will also need to invent a light, strong, and very shiny material　 for the sails, and tiny cameras powerful enough to take pictures of planets. And they'll have to find a way to send those pictures back to Earth. There's a lot of work ahead. But if they succeed, the heart of a mobile phone may be the very first interstellar traveler.

1.Scientists plan to invent the Star Chip mainly because it 　　　 .

A.could send messages to other planets B.could take photos and collect information

C.could find life in other stars and planets D.could be small enough to travel much faster

2.Powerful lasers will be shot at Star Chips to 　　　 .

A.make sure Star Chips won't be hit in space B.send Star Chips to space from Earth safely

C.open the strong and shining sails of Star Chips D.give Star Chips enough energy to travel in space

3.What technologies about Star Chips are still waiting to be built?

①The way to send pictures back to Earth.

②The strong and shiny material for the sails.

③The tiny cameras able to take photos of planets.

④The chip as small as the ones in mobile phones.

A.①②③ B.②③④

C.①②④ D.①③④

4.What is the best title of the passage?

A.A Chip with Great Power B.A New Coming Spaceship

C.A Big Problem about Star Chips D.A Great Trip to Proxima Centauri

九年级英语阅读单选困难题查看答案及解析

The stars __________small because they are very far away from us.

A. turn　　 B. become　　 C. are　　 D. look

九年级英语单选题中等难度题查看答案及解析

The stars are　　　　 far away for us　　　　 at night.

A.too; to see B.too; to see them C.so; to see D.too; to be seen

九年级英语单选题中等难度题查看答案及解析

Of all the stars the sun is the nearest to the earth. Millions of other stars are even bigger and brighter than the sun. They look small only because they are much farther away. You can’t see them in the daytime. But if you go out at night, you’ll be able to see thousands of them.

The earth is one of the sun’s planets, and the moon is our nearest neighbor in space. Men have visited it already. No man has traveled farther than the moon, but spaceship(宇宙飞船) without people have reached other planets.

Many countries have sent up man-made satellites(人造卫星) to circle the earth. With their help, people have done much research in many fields of science.

Our country sometimes uses man-made satellites to send and receive TV programs. This has helped the people of China and other countries to understand each other better.

根据材料内容选择最佳答案。

1.The sun looks bigger and brighter than other stars because ________.

A. we can’t see millions of them.

B. it is the nearest one to the earth

C. it is much farther away from other stars.

2.Our nearest neighbor of the earth in space is _______.

A. the earth　　　　　　 B. the moon　　　　　　　　 C. the spaceship

3.Man-made satellites can help us _______.

A. to visit the stars

B. to get to other planets

C. to do much research

4.Our country has sent up man-made satellites _______.

A. to travel to other stars

B. to circle the moon.

C. to sent and receive TV programs.

5.Which is true in the following sentences ?

A. The sun has only one planet in the place.

B. We can’t live on the earth.

C. Man-made satellites have helped the people of China and other countries to understand each other.

九年级英语阅读理解中等难度题查看答案及解析

Do you want to travel to the countries in Asia? You don’t have to travel very far. Follow us, you can find these Asian adventures(探险).

Cycling in Guilin, China

Get around the city by cycling through Guilin, in the Guangxi province of China. Mountains rise straight up, creating the only beauty. Bike paths take you past the villages and farms. Enjoy the beautiful natural views from your bike, or stop and talk with one of the villagers working in his field.

Adventure advice: When your feet are tired, take a boat trip along the beautiful and famous Li River.

White-water rafting in Nepal

In Nepal, you can experience thrilling rapids(湍流) and the beautiful views of the Himalayas at the same time. Take a white-water rafting trip down the Sun Koki River, world-renowned for its powerful rapids. At night you'll camp beside the river on white water, enjoy the quiet, lonely Nepalese countryside.

Adventure advice: Don’t go rafting in summer. High water levels make it dangerous.

Scuba diving in Malaysia

Go diving in the clear waters around Spaded, an island in Malaysia, and discover an underwater world. You'll see large sea animals swimming along. The colorful coral along the reefs hides tiny fish. The wide kind of tropical life found around Spaded makes it famous worldwide for diving.

Adventure advice: You can dive at Spaded, but you can't sleep there. The island is a protected park, but you can stay on one of the nearby islands.

Three　　 1.　 Adventures

九年级英语其他题中等难度题查看答案及解析

Many of the stars ________ because they are far away from us.

A. may not see　　 B. can not be seen

C. mustn't be seen　　 D. needn't see

九年级英语单选题中等难度题查看答案及解析

Parents are probably the closest people in the world to us. However, parent-child relationships are not always easy to deal with. What's worse, now that we live in an information age, the internet is bringing new challenges to family relations.

The China Youth Children Research Center did a survey about such relationships in the United States, Japan, South Korea and China. According to the survey, the use of the Internet has become one of the main reasons for fights between parents and children in China and South Korea. “This shows that some parents consider the internet being a toy instead of a tool," China Youth Daily said. "In addition, they don't have enough trust in their children, so it leads to conflicts sometimes.”

However, the internet can actually improve parent-child relationships if both sides use it the right way. Kim Se-Yeon, a 20-year-old South Korean who goes to college in Beijing, says that she believes the internet has brought her closer to her parents. She taught her parents how to use chat apps and post pictures on social media. Her parents trust her when they found that she can control herself well. These days, she and her parents often chat with each other and make video calls through the internet.

Experts suggest that to reduce your parents' concern about your internet usage, you should show them that you can manage your time well. Children are just as responsible for creating healthy family relationships as their parents are.

1.Which of the following countries DID NOT take part in the survey about parent-child relationship mentioned in the passage?

A.The United State B.South Korea

C.The United Kingdom D.Japan

2.What does the underlined word conflicts mean in the second paragraph?

A.Decisions B.Fights C.Agreement D.Progress

3.Why does the writer mention Kim Se-Yeon as an example

A.Because she goes to college in Beijing

B.Because her parents learn to use chat apps

C.Because the internet didn't play an important role in her daily life

D.Because the internet improves her relationship with her parents

4.According to the passage which statement is NOT true?

A.Children should tell parents that they can manage their time well

B.Children can do nothing to create healthy family relationships

C.If parents have not enough trust in children, problems may appear

D.Parent-child relationships are sometimes difficult to deal with

九年级英语阅读单选中等难度题查看答案及解析

The new house is far too expensive, though it is __________ (无疑地) very comfortable to live in.

九年级英语根据中/英文提示填空中等难度题查看答案及解析

---- Is it far from here to the bank?

---- Not very, only________．

A．20 minute’s walk　　 B．20 minutes’ walk

C．20 minutes walk　 　 D．20 minutes’ walks

九年级英语单项填空中等难度题查看答案及解析

—What a traffic jam! I am late again.

—Yes, the traffic is _____than it used to be.

A．very good　　　　　　　　　　 B．even better

C．very bad　　　　　　　　　　 D．even worse

九年级英语单项填空中等难度题查看答案及解析