Water is of vital importance in a healthy diet and lifestyle. There are many health benefits of drinking water .It helps get toxins out of our systems. It aids in the delivery of oxygen and nutrients .In fact, nearly every system in our bodies depends on water for proper functioning .But how can we tell whether the water we’re drinking is healthy?
As to tap water, it’s relatively easy .If your water comes from a governmental source , the suppliers are required by law to provide annual water quality reports .If you have a well, you can have an authorized lab test your water .It may cost $100 or more, but it’s a small price to pay for peace of mind .
When it comes to bottled drinking water, it can be more difficult to know what you’re getting .Start by checking the label or the bottle cap. Some may tell you that the water comes from a governmental source or “community water system”, which means tap water .If the label doesn’t give any information, you can call the bottler and ask .But don’t be surprised if you get the runaround and are transferred to several different departments .Some states have a bottled water program that tracks bottled drinking water and can tell you the origin of the water as well as other information .
Safe and healthy drinking water has become big business .Thousands of companies are competing for your hard earned cash , and some are not always honest about what their products offer .The initial investment in a home drinking water filtration (过滤)system can seem expensive at first , but over time , it is usually less expensive than bottled drinking water .And with a water filter , you at least know where the water you drink comes from and how it is treated .
Before going out and spending your hard earned money on bottled drinking water , it’s a good idea to do some research .You’re likely to find that a drinking water filtration system or purifier is a healthier choice and provides the best value as well .According to the second paragraph, we can know tap water _____
| A．costs us a large amount of money to test |
| B．is very hard to judge its safety |
| C．is reliable if it comes from a government approved source |
| D．needs to be tested every month |
By using a water filter, people_____
| A．can drink water without fearing that the water isn’t treated |
| B．will have to pay more money eventually than if they just drink bottled water |
| C．will know if the water company is honest or not |
| D．can check the quality of the water by themselves. |
What’s the author’s attitude towards drinking bottled water?
| A．Concerned | B．Indifferent |
| C．Positive | D．Opposed |
What is the meaning of the underlined word “toxins” in the first paragraph?
| A．extra blood | B．harmful material |
| C．useless tissue | D．polluted chemicals |
What is the main idea of this passage?
| A．The disadvantages of bottled water |
| B．The benefits of drinking water |
| C．The difference between tap water and bottled water |
| D．The ways to ensure the safety of your drinking water |
You probably know you should say “please” and “thank you” at restaurants. You probably know the rules of a library. You know you should respect and be nice to your classmates. But do you have music manners?
Keep It Down! You have to notice the volume of your music. You should not play your music so loud that everyone around you can hear it. Some people might even get angry. Usually, when you play the music loud on an MP3 player, other people can’t hear the words of the song. They just hear a loud sound. Not one wants to listen to this. Very loud music can also be bad for your ears, so even if you are alone when listening to your MP3 player, you shouldn’t have it turned up too high.
Take Them Off! You need to know when to turn your MP3 player off and put it away. Libraries and schools don’t allow MP3 players. There are other places, like museums, that don’t have rules, but it would be rude to have your MP3 player on. Sometimes, it just doesn’t make sense to listen your MP3 player at event. Why would you listen to music at a play, a movie or a sporting event? You would miss what is going on and others would wonder why you even came.
Take One Out! Once in a while it’s okay just to take out one earphone and not other. Imagine you are listening on your MP3 player when someone asks you the way. It would not be rude to take out one earphone, tell him the way, and put back the earphone and continue listening. You can also do this when you order food at a fast-food restaurant or when you answer the telephone.
It’s Your Choice! There are times when you need to decide what is best. For example, some people can listen to music on their MP3 players when reading books, while others think it is disturbing. In cases like this, you need to do what seems right for you.The underlined word “volume” in Paragraph Two probably means “_____”.
| A．the type of music |
| B．the amount of a sound |
| C．the beat of a song |
| D．the colour of an MP3 player |
We should turn down the music when we are alone because loud music _____ .
| A．is not enjoyable | B．makes us tired |
| C．is bad for MP3 players | D．hurts our ears |
It’s all right to use our MP3 player in __________.
| A．schools | B．libraries | C．restaurants | D．museums |
What can be the best title of this passage?
| A．Music Lovers | B．Music Manners | C．MP3 Players | D．MP3 Earphones |
Zhoukoudian is a small village situated about 50 kilometers to the southwest of Beijing. In the 1920s, archaeologists discovered some prehistoric human bones there which changed people’s view of China’s history. They came from an unknown species of man and were the first evidence of human life in China thousands of years ago. The remains were three teeth!
In 1929, a complete skull was also discovered. Eventually, archaeologists found almost 200 items, including six skulls and more than 150 teeth. These discoveries proved the existence of a human species who lived in the area between 700,000 and 200,000 years ago. Four sites where Beijing Man and his relatives lived were discovered on the northern face of Longgushan. They lived in the caves in the area.
However, the life span of Beijing Man was short. About 70% of the people probably died before the age of 14. Fewer than 5% lived to the age of 50. Ashes were found alongside the fossils which showed they had used fire for cooking food and also for light, warmth, and protection against wild animals. This is the earliest evidence of the use of fire anywhere in the world. They also made tools of bones and stones. Unfortunately, when Japan invaded China in 1937, excavations (发掘) at the Beijing Man Site stopped and most of the fossils disappeared, including a Beijing Man skull. After the People’s Republic of China was established in 1949, the work started again.
Zhoukoudian was listed as a World Heritage Site in December 1987. It has not only given us important information about prehistoric Asian societies, but also provided amazing evidence about the process of evolution. Today, parts of the caves have been badly affected by rain. Some areas are almost completely covered in weeds, causing serious damage. Pollution from the nearby factories has also led to the problem. This is a very serious matter and the Chinese Academy of Sciences is trying to raise public awareness of protecting it. Archaeologists _________.
| A．thought that the findings in Zhoukoudian are the first evidence of human life in Asia |
| B．thought that the findings in Zhoukoudian wouldn’t change the history of China |
| C．discovered some prehistoric human bones in Zhoukoudian |
| D．thought that Zhoukoudian was a beautiful village |
Beijing Man used fire to do all of the following things EXCEPT _____.
| A．light in the dark | B．keep warm |
| C．scare wild animals away | D．make tools |
What’s the main idea of the last paragraph?
| A．Zhoukoudian is a World Heritage Site. |
| B．Zhoukoudian is in great need of protection. |
| C．The digging of Zhoukoudian is still under way. |
| D．Zhoukoudian plays an important part in the study of prehistoric societies. |
People often said Thomas Edison was the greatest genius of his age. There are only a few men in all of history, who have changed the lives of other men as much as the inventor of the first useful electric light. But Edison could never be pleased only because someone said he was a genius. "There is no such thing as genius," Edison said. He thought what people called genius was mostly hard work.
But Edison was a dreamer as well as a worker. From his earliest days as a child he wondered about the secrets of nature. He tried to understand them, and then he tried to learn what he could usefully do with them.
Edison enjoyed thinking. He knew that most people would do almost anything instead of the difficult work of thinking, especially if they do not think very often. But he knew, too, that thinking could give men enjoyment and pleasure.
Edison could not understand how anyone could not be interested in life. As he loved to think, he also loved to work. On the day he became 75 years old, someone asked him what idea he had about life. “Work,” he answered, “Discovering the secrets of nature and using them to make men happier.” He said he had enough inventions in his mind to give him another 100 years of work.According to Thomas Edison, what's genius?
| A．Hard thinking. | B．Useful inventions |
| C．Useful dreams. | D．Hard work. |
After exploring the secrets of nature, Edison always tried to______．
| A．make them useful in life |
| B．carry out a new experiment |
| C．write down what he had learnt |
| D．share them with others |
Edison could not understand______.
| A．how anybody enjoyed life |
| B．how anybody loved working |
| C．why anybody loved thinking |
| D．why anybody was tired of life |
The underlined sentence in the last paragraph means that______．
| A．Edison was able to live another 100 years |
| B．life was too short for Edison to work for human beings |
| C．Edison was born to be a great inventor |
| D．Edison was ready to make his l00th invention |
Americans Spend Their Free Time In Various Ways
America is a country of sports—of hunting，fishing and swimming，and of team sports like baseball and football．Millions of Americans watch their favorite sports on television．They also like to play in community orchestras(管弦乐队)，make their own films or recordings，go camping，visit museums，attend lectures，travel，garden，read，and join in hundreds of other activities．The people also enjoy building things for their homes，sewing their own clothes，even making their own photographs．They do these things for fun as well as for economy．
But as much as Americans enjoy their free time，the country is at the same time a“self-improvement” country．More than 25 million adults continue their education，chiefly by going to school in the evening， during their own free time，at their own expense．Added to the time spent on personal activities，Americans a1so devote a great amount of their time to the varied needs of their communities．Many hospitals，schools，libraries，museums，parks，community centers，and organizations that assist the poor depend on the many hours citizens devote to these activities，often without any pay. Why do they do it?
There are several answers．The idea of cooperating and sharing responsibility with one another for the benefit of all is as old as the country itself．
When the country was first founded in 1776，it was necessary for the settlers to work together to live．They had crossed dangerous seas and risked all they had in their struggle for political and religious freedom．There remains among many Americans a distrust of central government．People still prefer to do things themselves within their communities，rather than give the government more control．
Sometimes people offer their time because they wish to accomplish something for which no money is paid，to do something that will be of benefit to the entire community．It is true that some people use their leisure because they are truly interested in the work；or they are learning from the experience．
No matter what the reason is，hundreds of thousands of so-called leisure hours are put into hard，unpaid work on one or another community need．The writer mentions the foundation of the country in order to indicate ____．
| A．the reason for Americans’ willingness to cooperate and share responsibility |
| B．the American people’s determination to live |
| C．the American people’s love for freedom |
| D．the early history of America |
Which of the following best explains the meaning of the underlined word “leisure”?
A．work time B. spare time C. energy C. effortThis passage is mainly about ________ ．
| A．how Americans are devoted to their community activities |
| B．why America is a “self-improvement” country |
| C．why America is a country of sports |
| D．how Americans spend their free time |
Let children learn to judge their own. A child who learns to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Little by little, he makes the necessary changes to make his language like other people’s, in the same way, children learn to do all the other things without being taught—to walk, run, climb, ride a bicycle—compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not. If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time in doing such work? Our job should be to help the child when he tells us that he can’t find the way to get their own understanding, how to know what they know or do not know.According to the passage, the best way for children to learn things is ___
| A．to listen to skilled people’s advice |
| B．to ask older people many questions |
| C．to make mistakes and have them corrected |
| D．to do what other people do |
According to the writer, teachers in school should ___
| A．allow children to learn from each other |
| B．point out children’s mistakes whenever they are found |
| C．correct children’s mistakes as possible as they can |
| D．give children more book knowledge |
Which of the following does the writer think teachers should not do?
| A．Give children correct answers |
| B．allow children to make mistakes |
| C．Point out children’s mistakes |
| D．Let children judge their own work |
The passage suggests that learning to speak and learning to ride a bicycle are ___.
| A．different from learning other skills |
| B．the same as learning other skills |
| C．more important than other skills |
| D．not really important skills |