Many objects in the universe are invisible ，but they send radio waves．The radio telescope *thus appeared，and it is considered one of the greatest inventions in the twentieth century．Reber built the world's first radio telescope in 1937．Ryle and Hewish developed radio telescope systems for the location of weak radio sources，and they shared the Nobel Prize for Physics in 1974．
A radio telescope is usually made up of：
•One or more antennas to collect the radio waves．Most antennas are made in the shape of a dish to collect and reflect *the radio waves to the sub﹣reflector，in the same way as a curved mirror focuses visible light to one point．
•A receiver and amplifier to receive the radio waves from the sub﹣reflector，and make these weak radio waves strong enough to be recorded and turned into electronic signals *．To make an amplifier sensitive enough，it is usually cooled to very low temperatures（e．g．as low as ﹣270℃）．
•A recorder to keep a record of the electronic signals．Most radio telescopes today keep the signals to the computer's memory disk for astronomers to analyze later．
Radio wavelengths are much longer than those of visible light．and the radio waves from deep space are always weak．To catch these waves，radio telescopes usually have huge antennas．The sizes of most antennas in use today are around 50 to 300 metres in diameter． The antenna of FAST in Guizhou，China，the latest and largest radio telescope in the world，is 500 metres in diameter，as large as the size of 30 football fields．
To avoid interferences， and keep the telescopes sensitive，radio telescopes are built in places where there are no human radio waves or electronic signals．For example，FAST is 5 kilometres away from the closest village and 25 kilometres away from the nearest town．
Radio telescopes create pictures of the sky，not in visible light， but in radio waves．This is extremely useful，because there are objects that can't be seen，objects that we wouldn't even know were there without radio telescopes．
（1）Radio telescopes help collect from the universe．
A．light
B．objects
C．radio waves
D．visible signals
（2）Most antennas of radio telescopes are made in the shape of a dish to ．
A．make the antennas strong enough
B．increase the number of radio waves
C．turn radio waves into electronic signals
D．focus radio waves on the sub﹣reflector
（3）The underlined word "interferences" in the passage refers to ．
A．the noises made by villagers and animals
B．the sounds from the radios and televisions
C．the people who go to Guizhou to watch FAST work
D．the radio waves and electronic signals from humans
（4）What have we done with the help of radio telescopes？
A．We have received pictures of deep space．
B．We have discovered unknown lives in the universe．
C．We have found some unknown objects in the universe．
D．We have turned the radio waves from space into light．
Marsha's House Come and enjoy home on your trips. We offer rooms of different sizes and delicious food. No.5 Park Road：543002  |
Country Life Market Our fruits and vegetables come in fresh every morning. Special prices for the first month. Opening hours：10：00 a.m.－10：00 p.m. No.3 Clinton Street Tel：544996 |
Wawa Village The best school for your dog. They learn everything here. *Also a nice home for them when you are out of town. Call 544741 24 hours |
Next Wave Music Store After 10 years of teaching piano, Amold_Swenson has made his first CD! Come and meet him this weekend. Special presents for the first 50 people. Sat.7：00 p.m. Call Diana 543616 |
Marsha's House may be a ________.
| A．supermarket | B．hotel | C．restaurant | D．cinema |
If you want to buy apples, you should go to ________.
| A．Marsha's House | B．Country Life Market |
| C．Wawa Village | D．Next Wave Music Store |
Amold Swenson may be a(n) ________.
| A．musician | B．athlete | C．film star | D．singer |
If you want to get a present from Next Wave Music Store, you should ________.
| A．get there before 7：00 a.m. |
| B．be the first person to get there |
| C．call 543616 |
| D．not get there later than 50 people on Saturday |
What's the type of the four short articles?
| A．Novel. | B．News. |
| C．Advertisement. | D．Essay. |
In our daily lives, Wechat (微信) is really hot now. Many people express themselves, exchange ideas and deliver information by Wechat.
There are a number of reasons for Wechat to be popular. To begin with, Wechat is a cheap way of communication, which cuts down a great deal of the cost made by phone calls. Next, Wechat is to the taste of the most of people. Its attractive and lots of functions(功能) are loved widely. What’s more, convenience also leads to its popularity. It is available no matter where we are.
However, it has problems, too. First of all, our IDs might be revealed when we use Wechat and we could be in danger. Secondly, we may spend more time on Wechat instead of with our family. As a result, relationship(关系) could break down. The last problem is that our attention might be drawn too much and sometimes we may find it difficult to focus on study.
There is no doubt that Wechat will improve as time goes by. So let’s look forward to the better Wechat and have more fun with it.What can’t we do by Wechat ?
| A．Express ourselves. | B．Exchange ideas. |
| C．Make phone calls. | D．Deliver information. |
What does the underlined word “available”mean in the passage?
| A．舒适的 | B．可用的 | C．好玩的 | D．便宜的 |
Using Wechat could be dangerous because _____________
| A．relationship could break down |
| B．IDs might be revealed |
| C．it`s difficult to focus on study |
| D．spending too much time on Wechat |
How many problems you may have by using Wechat according to this passage?
| A．1. | B．2. | C．3. | D．4. |
What do you think is the best title for this passage?
| A．Wechat has problems. |
| B．Why is Wechat hot ? |
| C．Wechat will get better in the future. |
| D．Wechat in our daily lives. |
In early November of 1503, during Christopher Columbus’ fourth and final trip to America, his ship was seriously damaged in a storm. Columbus and his men had to live on a small island for several months while they tried to repair their ship and return to Spain.
At first, the local people on the island were very kind to the European visitors, giving them all the food and clothes they needed to survive. However, as the months passed, the local people became more and more unhappy with their guests, who were tricking and stealing from them. Finally the locals decided to stop helping. Without food or any way to leave the island, Columbus’ group was soon in serious trouble.
Luckily for Columbus, he had a book about the stars and planets on his ship. It described the movements of all the objects in the night sky. The book, written by a well-known German scientist, said there would be a total lunar eclipse (月食) on the evening of February 29, 1504 and how long it would last.
Columbus worked out the difference in time between Germany and North America. He then had a meeting with the local leaders just before the eclipse would take place. In this meeting, Columbus told them his god was angry because the local people were no longer giving food. So his god would take away the moon to punish them. At the moment Columbus finished talking, just as he had planned, the moon began disappearing.
The local leaders grew frightened and quickly agreed to provide Columbus with food and anything else he wanted. But first, Columbus’ god had to return the moon. Columbus told them he would have to discuss the idea with his god on his ship. Knowing the moon would stay completely hidden for about 48 minutes, Columbus returned just before the moon began to reappear. From that day on, until they finally left, Columbus and his men no longer had any trouble getting the food they needed.At first, the local people helped Columbus and his men by__________.
| A．giving them food | B．building a house for them |
| C．repairing their ship | D．providing them with a book |
The local people became angry because the Europeans__________.
| A．looked very different | B．had nothing to trade |
| C．were cheats and thieves | D．wanted to take their land |
What did Columbus do after returning to his ship on the night of the meeting?
| A．He discussed the problem with his god. |
| B．He waited for the eclipse to finish. |
| C．He read about the stars and planets. |
| D．He told his men what happened. |
What can we learn about the Europeans from the passage?
| A．They all believed in god. |
| B．They never returned to Spain. |
| C．They admired the local people. |
| D．They caused their own problems. |
In March 2014, Australia opened junior high education to Chinese students, allowing them to study in Australian schools from the seventh grade.
“When more Chinese students are going to study abroad at a younger age, the opening of Australian junior high schools offers Chinese students and their parents one more good choice,” Tian Litie, director of the Australian Department of Chivast Education International, said at the China International Education Exhibition Tour over the weekend.
Australia will see a rise in the number of Chinese junior and senior high school students studying in the country. Tian showed the reasons for it: lower admission (入学许可) requirements and low-cost education because of a favorable exchange rate (费率). According to Tian, in public schools in Australia a student should pay A$13,000 to A$15,000 ($10,000 to $12,000) a year.
“Now the exchange rate of the Australian dollar to renminbi is below five, which means the cost is lower than that of Chinese students studying at junior and senior high schools in many other hot places, such as Britain and the US,” said Tian.
Lin Lina from Beijing plans to send her daughter to a senior high school in Australia, was among them.
“My daughter is good at English and would like to study abroad early,” said Lin, whose daughter is now a ninth-grader in Beijing. “We came for more information after we learned that the environment and education in Australia are good.”
Eliza Chui, education officer for North Asia at the Australian Consulate-General in Shanghai, said that Australia is attractive not only because it provides an environment for learning English, but also because students are trained to have critical (批判性的) thinking and be independent.According to Tian Litie, we know that ______.
| A．more and more Chinese students study abroad at a younger age |
| B．more and more Australian universities are open to Chinese students |
| C．Chinese students are only allowed to study in Australia from senior high school |
| D．a student should pay A$10,000 to A$12,000 a year in public schools in Australia |
What does the word “it” in Paragraph 3 mean?
| A．Australia allows Chinese students to study in its schools. |
| B．More and more Chinese students go abroad at a younger age. |
| C．More Chinese junior and senior high school students will study in Australia. |
| D．Australian schools offer Chinese students and their parents one more good choice. |
According to the article, which of the following is TRUE?
| A．The cost of studying in American schools is lower than in Australia. |
| B．The exchange rateof the Australian dollar is of advantage to Chinese students. |
| C．It’s more difficult for Chinese students to enter Australian junior high schools. |
| D．Few students choose to study in Britain or the US because of too much money. |
One day while driving from my home to work. I noticed a car in front of me had a wobbly(不稳定的)wheel. It was clear that the wheel had been changed recently and had not been fixed correctly. On a slow road this would not show much of a problem but I knew a highway was coming soon. There the traffic would move much faster and the driver would be in danger as the wheel could come off at that speed.
I was driving a large jeep at the time and the car in front was a small one driven by a young lady on her own. So as I tried to flash(闪)my lights and wave her to pull over, I was worried that she wouldn’ t pull over on the road side when she found in her mirror a single man chasing(追) her down in a jeep and waving for her to pull over.
Thankfully. she trusted more in the good nature of people and pulled over where I could explain the problem. She said the wheel was changed only the night before and that she would pull into the nearest garage(修车间)where the repairman had tools to fix the wheel correctly.
My belief is that the act of kindness was hers and not mine. How so? Well, it was she who chose to believe in the possibility that people are good over the belief that bad things would come from being waved over to the side of the road by strangers.
I am glad I was able to wave her down in time and so a serious accident might have been avoided. But I am even happier that she believed in a stranger. The writer worried about the lady because .
| A．she was driving a second-hand car |
| B．a traffic accident might happen to her |
| C．a single man was chasing her down |
| D．she drove faster than any other car |
Why did the lady pull over on the side road ?
| A．Because she found something wrong. |
| B．Because she thought the road not safe. |
| C．Because the writer shouted at her. |
| D．Because the writer gave her some signs. |
What would be the best title for the passage?
| A．Trusting in the Kindness of Strangers |
| B．A Wobbly Wheel of a Car |
| C．A Lady Who Was Saved |
| D．Accident That Didn’ t Happen |
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