Although cats may be one of the most popular pets today, little is known about how and when humans and cats set up their close relationship.
The earliest evidence for human–cat interaction dates back to prehistoric Cyprus（史前塞浦路斯）, where the remains of a wild cat and a human — dated 9,500 years old — were found buried together.
A new study in the Proceedings of the National Academy of Sciences has confirmed the first direct evidence of a human–domestic cat relationship among Chinese farmers 5,300 years ago. Researchers studied the bones of cats, dogs, deer and other animals unearthed in an excavation (挖掘) near a village in Central China. By using some ways, scientists showed that the cats were living on a mostly millet(黍)–based diet, just like the domesticated dogs and pigs from the site.
"The most reasonable explanation for a high consumption of millet–based food is that the cats had formed a stable and mutual relationship with humans and could easily feed on rodents (啮齿动物) around human villages, find leftover food or even have been fed by people intentionally," said Hu Yaowu from the Chinese Academy of Sciences in Beijing, whose research focuses on the relationship between humans and domesticated animals.
"It is very interesting for us to find the consumption of millet-based foods by the cats, since this kind of evidence had long been missing.” Hu explains. Since cats usually eat meat, such a diet would be unexpected, unless the cats were being fed by people, the study argues. The researchers also found that one of the cats survived to reach old age, implying that it had a safe place to live and enough to eat.
Why the farmers wanted to keep cats nearby or make them "pets" could be answered by other evidence. Chinese archaeologists found some storage containers were specifically designed to keep out rodents — a vermin (害兽) that cats could certainly have helped with.
The simplified theory is that rats were attracted to the food of farmers, and so were harmful to farmers. Cats were attracted to the rats, and so farmers formed a mutually beneficial relationship with cats, taking care of them in return for pest control.The evidence found in the remains dating back to prehistoric Cyprus means .
| A．human made cats pets as early as 9,500 years ago |
| B．human interacted with cats very early |
| C．cats didn’t appear until prehistoric Cyprus |
| D．when cats became domesticated |
Apart from cats, Hu Yaowu and his teams may also study .
| A．the preventions of pests from grains |
| B．the history of Chinese farming |
| C．the dogs and pigs |
| D．the ways to keep pets |
Which of the following is NOT the evidence of Chinese farms’ keeping cats?
| A．Cats didn’t feed on meat. |
| B．The cats consumed large amounts of millet–based foods. |
| C．One of the cats survived to reach old age. |
| D．Some storage containers were specifically designed to keep out rodents. |
What are the reasons for farmers to keep cats?
| A．Helping keep other domesticated animals. |
| B．Not letting cats eat food. |
| C．Supplying meat for human. |
| D．Helping reduce the amount of pests. |
In which part of a newspaper would be the passage most probably appear .
| A．Entertainment | B．Environment |
| C．Human and Science | D．Life and fashion |
A little girl lived in a small, very simple, poor house on a hill and as she grew she would play in the small garden. There, she was able to see over the garden fence and across the valley to a wonderful house high on the hill. This house had golden windows, so golden and shining that the little girl would dream of how magic it would be to grow up and live in a house with golden windows instead of an ordinary house like hers. Although she loved her parents and her family, she yearned to live in such a golden house and dreamed all day about how wonderful and exciting it must feel to live there.
When she got to an age when she gained enough skill and sensibility to go outside her garden fence, she asked her mother if she could go for a bike ride outside the gate and down the lane. After pleading with her, her mother finally allowed her to go, insisting that she should keep close to the house and not wander too far. The day was beautiful and the little girl knew exactly where she was heading! Down the lane and across the valley, she rode her bike until she got to the gate of the golden house across on the other hill.
As she dismounted her bike and leaned it against the gate post, she focused on the path that led to the house and then on the house itself. She was so disappointed as she realized all the windows were plain and rather dirty, reflecting nothing other than the sad neglect of the house that was derelict.
So sad she didn't go any further and turned, and heart broken as she remounted her bike. As she glanced up she saw a sight to amaze her. There across the way on her side of the valley was a little house and its windows glistened golden as the sun shone on her little home.
She realized that she had been living in her golden house and all the love and care she found there was what made her home the 'golden house'. Everything she dreamed was right there in front ofher nose!Why did the girl long for the house on the hill?
| A． Because there was a small garden. | B．Because it’s magic. |
| C． Because it’s ordinary. | D．Because its windows looked golden. |
Which statement is True according to Paragraph 2 and 3?
| A． The girl’s mother finally allowed her to go to the golden house alone. |
| B． The golden house was on the hill where the girl lived. |
| C．What disappointed the little girl was that the house was locked. |
| D．Actually , the windows of the golden house were common and covered with dirt. |
What amazed the girl was that_____
| A． Her home was another golden house |
| B． There was no golden house indeed |
| C． She could see the golden house only when she looked up |
| D． The golden house disappeared when the sun shone on it |
What can be inferred from the passage?
| A． The mother thought that she needn’t keep an eye on her daughter. |
| B． The girl was determined to go to the golden house at the beginning. |
| C． The girl had no idea where she was heading after leaving home. |
| D． The girl didn’t love or care for her parents . |
The passage is intended to tell us that_____.
| A． girls often have amazing imagination |
| B．not all dreams will come true |
| C． what we dream of may be just around us |
| D．nothing is impossible to a willing heart |
The fourth round of heavy smog to hit Beijing in four weeks has sent more people to the hospital with respiratory（呼吸的） illnesses and led to calls for laws to control the pollution.
Pan Shiyi, a celebrity real estate developer said he is planning to propose (提案) a Clean Air Act to the local government. As a representative to the Beijing Municipal People's Congress, he started an online survey at 9:20 a.m. Within three hours, more than 25,000 web users, or 99 percent of total respondents（应答者）, welcomed his proposal on Sina Weibo, China's Twitter.
They have good reasons to stand alongside Pan. The latest round of haze（雾霾）reduced visibility to under 500 meters in many parts of the city. The smog has also led to a great increase in respiratory illnesses, particularly among children and the elderly. Anxious parents and doctors almost all blame the smoggy air for the illnesses. Though most schoolchildren are home for the winter holidays, the bad air can easily move indoors. Besides, ordinary medical masks fail to provide adequate protection, so some people have turned to gas masks and respirators（呼吸器）.
The causes of the scary smog are rather mysterious, though experts blame excessive emissions and the mountains around Beijing that trap pollution in winter, unless there is adequate wind to clear it away. Some critics have pointed fingers at China’s top two oil firms, China National Petroleum Corp and China Petrochemical Corporation, saying the companies’ outdated production technologies produce large quantities of substandard, high-polluting gas fuel.
Meanwhile, concerned Beijingers have moved their brainstorming sessions to cyberspace. If Pan’s proposal for a Clean Air Act is adopted, netizens say the new law should include items providing for “car-free days” in times of smog, higher standards for vehicle fuel, stricter restrictions on industrial and exhaust gas emissions, and more effective protection for the public.
Beijing is not the only city that has ever lost the blue sky. Five days of thick fog caused thousands of deaths in Britain in December 1952, urging the government to pass the first Clean Air Act in 1956, which introduced smokeless zones and cleaner fuels to reduce pollution. That may provide some experience for Beijing to refer to.What can we learn from the passage?
| A．People are clear about the causes of the smoggy weather. |
| B．Children staying indoors will not get respiratory illnesses. |
| C．Smog is worse for people with lower resistance to diseases. |
| D．Masks can give people protection against the smoggy weather. |
Britain is mentioned in the last paragraph to ______.
| A．suggest Beijing should learn from other countries |
| B．let people know many places have this problem |
| C．tell people the situation in Britain is worse |
| D．call on the government to pass Britain’s Clean Air Act |
What’s the best title for this passage？
| A．The Use of Gas masks and Respirators |
| B．Beijingers Call for Clean Air Act |
| C．Effective Protection for Blue Sky |
| D．The Mysterious Causes of the Scary Smog |
An Australian researcher is urging parents to load up their teenager’s backpack and make them walk to school.
Professor Leon Straker says students who walk or cycle to school are less likely to have back and neck pain. But the study of 1,202 Western Australian 14yearold found that 72% of students travelled to school by car or bus. Straker says the study suggests walking or cycling while carrying a schoolbag helps improve trunk (躯干) and spinal (脊柱的) muscle strength.
This helps reduce back pain because greater muscle strength improves support for the back during load carrying .Despite advocating that parents get their children moving，Straker warns bag load should not exceed (超过) 15% of body weight.
Straker says the study also stresses that neck pain is as common as back pain among young teenagers. This is an area that has been largely ignored，he says，but can be an important indicator of neck pain into adulthood.
For the study，students were asked a series of questions such as how long they carried their bags for，how they carried their schoolbags，the method of travel，and their perceptions(感觉) about the bag’s weight.
Straker says about half of all participants experienced back and neck pain，with slightly more females reporting neck pain. However，the gender (性别) difference may also be due to the fact that females have lower pain tolerance.
Studies from the 1980s found carrying a bag over one shoulder was most common among teenagers. However in this study 85% of participants carried their bag over both shoulders.
Straker believes the change has been driven partly through education campaigns，but also by increasing fashion status of backpacks and improved design.In the opinion of Leon Straker，parents should________.
| A．reduce the load of their children’s schoolbags |
| B．put more books in their children’s schoolbags |
| C．get their children’s schoolbags ready for school |
| D．ask their children to walk to school carrying schoolbags |
If a child weighs 40 kilograms，the weight of his schoolbag should be________.
| A．no more than 15 kg |
| B．less than 6 kg |
| C．as heavy as 9 kg |
| D．more than 6 kg |
We can learn from the passage that________.
| A．most of the students in Australia walk to school |
| B．neck pain is uncommon among young teenagers |
| C．walking while carrying a backpack helps reduce back pain |
| D．males are more likely to experience back pain than females |
According to the passage，what change has taken place since the 1980s?
| A．How students carry their schoolbags. |
| B．How heavy students’ schoolbags are. |
| C．How students go to school every day. |
| D．How long students carry their schoolbags for. |
Nuclearpowered aircraft carriers are considered one of the most important marine weapons in the 20th century. So far, only two countries in the world, the USA and France, have ever produced them. But these fearful fighting machines are about to enter Asia.
The US Navy said last month that one of its nine nuclearpowered aircraft carriers will be sent to Japan to replace the diesel(柴油)powered carrier Kitty Hawk in 2008. In an agreement on October 30, the two countries also planned to level up their military (军事的) cooperation and the USA called for Japan to take a larger role in alliance (联盟)military moves.
It will be the first time that a nuclearpowered carrier is based in Japan. Bombed by US forces in World War Ⅱ at Hiroshima and Nagasaki, Japan is the only world country to have been attacked by a nuclear weapon. Therefore, the citizens are highly sensitive to where nuclearpowered weapons are based.
“A radiation leak at Yokosuka would kill 100,000 people as far away as Tokyo, and could cause billions of dollars in damage，” said Masahiko Goto, leader of a protest group in Yokosuka. His group has collected more than 300,000 signatures of people across Japan opposed to the nuclear carrier.
The 44yearold Kitty Hawk, the US Navy's oldest active ship, has been based in Yokosuka since 1998. It had returned to the US to be decommissioned(废弃核武器) in 2008. The new carrier will travel faster, be capable of supporting longer operations and carry with it the Navy's most modern technology.
Experts pointed that this change is not only to strengthen the USJapan military alliance but also to keep the military power of China and North Korea within limits. However, even Japanese experts don't believe that the two countries are threats to the region.
“There is no need for Japan to have a nuclear carrier as defense，” said Tetsuo Maeda, an international relations professor at Tokyo International University. He said that the change of ship indicates an increased military capability in the region, much more than what is needed.With such a powerful weapon to enter its country, Japanese citizens ________.
| A．are aware of its benefits to the country |
| B．are anxious about its potential danger |
| C．are curious about the advanced technology |
| D．are against where the carrier will be based |
The replacement of the aircraft carrier is intended to________.
| A．set up a kind of base in Japan |
| B．strengthen the USJapan military alliance |
| C．show Japan's greater military capability |
| D．get rid of the dated marine weapon |
From the story, we learn that________.
| A．no other countries except the USA and France possess aircraft carriers |
| B．Japan has long planned to increase its military capability with new weapons |
| C．Japan will be the first country in Asia to have a nuclear aircraft carrier |
| D．Japan will be the third country to produce a nuclearpowered aircraft carrier |
By his remark in the last paragraph, the professor means that________.
| A．he is quite confident of their military defense |
| B．he is completely opposed to a new nuclear carrier |
| C．what is needed is far more than a nuclear carrier |
| D．it is unnecessary to guard against the two countries |
China_is_going_green. In order to reduce air pollution and oilshortages, automobile manufacturers have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market. Toyota's hybrid car Prius will be ready to drive in China this week. Let's have a look at the new car.
Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional gasoline engines. They run at 99 percent of their power when the car is cruising (匀速行驶). A specially designed battery motor provides extra power for running up hills or when extra acceleration is needed.
Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a traditional car. At this point, the car's gasoline engine is dormant (休眠). The electric motor will provide power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an electric car, with no gasoline being used, and no waste gas gives off.
The onboard(车载的) computer makes the decision about when to use a gas engine, when to go electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas pedal (油门), you are actually telling the computer how fast you want to go.
The electronic motor recharges automatically using a set of batteries. When driving at high speed, the gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the electric motor in the wheels will work like a generator and produce electricity to recharge the batteries. As a consequence, the car's batteries will last for around 200,000 miles.The author writes this passage mainly to________.
| A．teach people how to drive a hybrid car |
| B．introduce a new kind of “green” car |
| C．show how to save their gasoline when driving a car |
| D．announce plans to develop hybrid vehicles for China |
The first sentence probably refers to ________.
| A．there will be more and more green land in China |
| B．China is still young and lacking experience |
| C．China's new cars are combinations of different green models |
| D．China has started producing environmentally friendly cars |
Which of the followings is NOT true?
| A．The hybrid cars reduce air pollution and oilshortages. |
| B．The car's gasoline engine doesn't work until it reaches about 24 km/h. |
| C．This kind of car is completely controlled by an onboard computer. |
| D．A specially designed battery motor provides extra power when needed. |
What is the most important feature of hybrid cars?
| A．They are powered by both a rechargeable battery and gasoline. |
| B．They are much quieter than traditional cars. |
| C．They only use 99 percent of their power to run up hills. |
| D．They have smaller engines than traditional gasoline ones. |