A young father was visiting an old neighbor． They were standing in the old man's garden， and talking about children． The young man said， “How strict should parents be with their children？”
The old man pointed to a string（绳子）between a big strong tree and a thin young one． “Please untie（解开）that string,” he said． The young man untied it, and the young tree bent（弯）over to one side． “Now tie it again， please，” said the old man， “but first pull the string tight so that the young tree is straight again．”
The young man did so． Then the old man said， “There，it is the same with children． You must be strict with them, but sometimes you must untie the string to know how they are getting on． If they are not yet able to stand alone， you must tie the string tight again． But when you find that they are ready to stand alone， you can take the string away．”The story is about ＿＿＿＿＿＿＿ ．
| A．how to take care of young trees |
| B．how strict parents should be with their children |
| C．how the young father should get on with his old neighbor |
| D．how to tie and untie the string |
When can the string be taken away？＿＿＿＿＿＿＿ ．
| A．When the old man has left |
| B．After you have untied it |
| C．When the young man has untied it next time |
| D．When the young tree grows strong enough |
In the story the relation（关系） of the big strong tree to the thin one is like that of ＿＿.
| A．the young father to the old neighbor |
| B．parents to their children |
| C．the old neighbor to the children of the young father |
| D．grown ups to their parents |
A Concussion（脑震荡） happens when the brain is shaken, often in a car crash or a fall or a strike on; the head in sports．Concussions can be mild, but doctors may order a CT scan to look for a more serious injury．But a recent study warned that more children than necessary are being exposed（使遭受） to radiation this way．
A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries. They found that in many cases, the risk of developing cancer from the radiation outweighed the risk of a serious brain injury.
The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under two years of age.
The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is:
·Normal mental activity.
·No swelling in the back of the head.
·No feeling of a broken bone in the skull. (头骨)
·And no loss of consciousness for more than five seconds.
Doctors should also consider how the child was injured and whether the parents say the child is acting normally.
For patients from two to eighteen, the guidelines are similar —— except there should be no l vomiting（呕吐）and no severe headache.
Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said they should not return to sports or school until fully recovered. The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.
It often take longer than adults to recover from a concussion than adults. The experts say individual progress and not a set time period should always guide a decision to return to play. The researchers at the -University of California found that children who received CT scans
| A．were likely to suffer brain injuries |
| B．wouldn’t have normal mental activity |
| C．would lose consciousness now and then |
| D．were likely to develop canter |
How many aspects should doctors consider when deciding whether a child under two needs a CT scan?
| A．Four． | B．Six． | C．Seven． | D．Nine． |
What can we learn from the last two paragraphs?
| A．Texting is harmful to patients’ recovery from concussions． |
| B．Patients with brain injuries can play many sports． |
| C．Adults need a longer time than teens to recover from concussions． |
| D．It takes at least a year for individuals with brain injuries to fully recover． |
The author of the passage mainly___．
| A．describes the risks of brain injuries |
| B．suggests CT scans are of practical use |
| C．tells us about the risks of brain injury tests |
| D．argues against new guidelines for concussions |
Our planet is in trouble．Polluting industries and corporations are destroying our planet, resulting in increasing global temperatures, melting ice caps, and economic turmoil（混乱）．All across the country, folks are waking up to the reality that if they do not ad now to solve the environmental problems of today, the consequences are unthinkable．If we don’t i ct now, who will? Fortunately, an amazing team of young leaders are taking action．They a e getting involved with the Greenpeace Student Network!
The Student Network has student leaders who deal with the most pressing environmental issues．We have organized and won inspiring campaigns．Convincing corporations to change their ways and politicians to do the right thing．All thanks to our team of leaders, known as Campus Coordinators．
Campus Coordinators are located all across the United States, and even Canada! They work on Greenpeace Student Network campaigns at their schools and in their communities．They organize events like film screenings and days of action．They hold meetings with elected officials, work with the media, recruit（招募） volunteers, and mobilize（动员） their campus to take action! They do all of this with excellent training and expert support from our team of Student: Network staff．Campus Coordinators develop their leadership skins and become an unstoppable force for green solutions on pus and in their community．
Currently, the Greenpeace Student Network is campaigning to solve the largest environmental threat to humankind: global warming．With only months until a new international treaty（协议）on global warming is decided this December, the time to stand up and take the lead has never been
more important,
If you are concerned with environmental issues, want to mobilize your scho4l and community, nd are ready to become a skilled organizer and strong leader, then the Campus Coordinator position is for you! We are now accepting applications for the Fall 2009-Spring 2010 academic year．
Are you ready to be a leader on your campus?
Apply to be a Campus Coordinator today! Why does the author write the passage?
| A．To describe the serious environmental problems． |
| B．To call on students to apply to be Campus Coordinators, |
| C．To explain the advantage of the Greenpeace Student Network．． |
| D．To stress the importance of solving environmental problems． |
We can learn from the passage that the Greenpeace Student Network _____．
| A．is a place where school leaders are framed |
| B．is a worldwide organization helping student leaders |
| C．helps solve corporations’ economic problems |
| D．helps deal with global warming at present |
If you are a Campus Coordinator, you may probably _____．
| A．have．the chance to play a role in a film |
| B．find a job at a TV station |
| C．develop your leadership skills |
| D．build up your strength． |
Which of the following is NOT mentioned in the passage?
| A．The duty of Campus Coordinators． |
| B．The distribution of Campus Coordinators． |
| C．The aim of the Greenpeace Student Network． |
| D．The history of the Greenpeace Student Network． |
Over the past 20 years, AIDS and war have claimed the parents of 2．4 million Ugandan children．When Alexis Hefley first visited the country,, in 1993, she saw the children’s sorrow, but the former Texas banker also spotted "a world of possibility"．She watched as they danced for tourists to earn money, and she had a thought: If people in America could see them perform, they’d support them too．
The children’s passion and talent inspired Hefley to work with the kids at an orphanage（孤儿院）in Kampala, the capital city of Uganda, to organize a traveling dance troupe（团）．The goals: to give the problems in Uganda a human face, to raise awareness and to raise money．
The first tour touched down at six American cities in 1994．Today, the 22-member troupe, known as the Spirit of Uganda, travels across America every two years．The young performers bring their energy and joy to audiences across the U．S．and help support hundreds of Ugandan orphans back home．Among the young dancers, some earn scholarships to attend the U．S．colleges, and then return to their country to help rebuild it．
Photojournalist Douglas Menuez first photographed the troupe in 2006 -?a project that led to his new book, Transcendent Spirit, from which these images are drawn．At each performance, the dancers’ faces show pure joy, quite an achievement given the hardships they’ve faced．"They look to the future, not the past," explains Menuez．"They embrace beauty and good in the world．" As one dancer puts it, "People think we have lost our parents．We’ve had so many problems．But then they see us perform．They see our smiles．And they learn that life goes on．"What are the first two paragraphs mainly about?
| A．How miserable Ugandan orphans’ life is． |
| B．How the dance troupe was set up． |
| C．How the young dancers earned money． |
| D．How the orphans lost their parents．| |
What do we learn about the Spirit of Uganda?
| A．It was started by a journalist． |
| B．It travels across the U．S．annually． |
| C．It consists of two dozen performers． |
| D．Its dancers have chances to study in the U．S． |
In the eyes of Menuez, the young performers are_____．
| A．beautiful | B．talented | C．optimistic | D．humorous |
What might be the most suitable title for the passage?
| A．Ugandan orphans turn tragedy into dance |
| B．Transcendent Spirit: A close look at Uganda |
| C．AIDS and war are claiming people’s lives |
| D．Lots of people are helping Ugandan orphans |
As a palace, the Tower of London．was a great place to live．As a prison, it, wasn’t so nice ——especially since so many prisoners lost their heads．Today tourists can explore 5the Tower in the
United Kingdom．Here are some reasons why the Tower was and still is a cool place．
Ravens（渡鸦） are like superheroes．
Well, sort of．Legend says if the ravens that live on the Tower grounds ever leave, the Tower will fall apart．No one knows when the ravens first showed up, but Charles II took the legend so seriously that in the 1670s he gave an official order that six ravens be kept there all the time．Today
there are still always six．
You might have lived at a zoo．
In 1204, King John kept a collection of animals, including lions and elephants．About 50 years later, King Henry III received a polar bear．the bear was kept on a piece of rope so it could fish from the Thames River that flows by the Tower．
If you lived at the Tower today, your mom or dad might be in charge．
The 35 Yeoman Warders（伦敦塔卫士）and their families are among the few still allowed to live at the Tower．Established in 1509 a;? bodyguards! for the king, today they give tours and manage the day-to-day details of the Tower．They’re called "beefeaters," possibly because their job once allowed them to eat beef from the king’s; table．
You need a secret password at night．
Called the "Word," the password changes every 24 hours and is a must-have to enter the Tower
after hours．It’s written on a piece of paper and delivered to the Yeoman on duty for, the night．
You could find buried gold．
In 1662, a goldsmith（金匠） named John Barfcstead supposedly hid more than $40,000 worth of stolen gold somewhere on．the Tower grounds．Many have searched for the gold, but it has never
been found．Charles II decided to keep six ravens in the Tower probably because ____,． ;
| A．he loved animals a lot |
| B．he believed ravens helped protect the Tower |
| C．he wanted to train the ravens to watch the prisoners |
| D．he thought the Tower was a cool place for the ravens to live |
According to the passage, the Yeoman Warders ______．
| A．have to part from their families to work at the Tower |
| B．are currently working as bodyguards for the king |
| C．sometimes serve as tour guides |
| D．are fond of eating beef |
Which of the following is TRUE about the Tower of London?
| A．King Henry III kept lions and elephants in it． |
| B．It stands on the bank of the Thames River． |
| C．Nobody is allowed to enter it at night． |
| D．It is also used as a prison nowadays． |
The year is 2094．It has been announced that a comet (彗星) is heading towards the Earth．Most of it will miss our planet , but two pieces will probably hit the southern half of the Earth．
On 17 July , a piece four kilometers wide enters the Earth’s atmosphere (大气层) with a massive explosion．About half of the piece is destroyed , but the remaining part hits the South Atlantic at 200 times the speed of sound．The sea boils and a huge hole is made in the sea bed．Huge waves are created and spread outwards from the hole．The wall of water , a kilometer high , rushes towards southern Africa at 800 kilometers an hour．Cities on the African coast are totally destroyed and millions of people re drowned．
Before the waves reach South America , the second piece of the comet lands in Argentina．Earthquakes and volcanoes are set off in the Andes Mountains．The shock waves move north into California and all around the Pacific Ocean．The cities of Los Angeles , San Francisco and Tokyo are completely destroyed by earthquakes．Millions of people in the southern half of the earth are already dead, but the north won’t escape for long．Because of the explosions , the sun is hidden by clouds of dust , temperatures around the world fall to almost zero．Crops are ruined．The sun won’t be seen again for many years．Wars break out as countries fight for food．A year later , no more than 10 million people remain alive．
Could it really happen ? In fact , it has already happened more than once in the history of the Earth．The dinosaurs were on the Earth for over 160 million years．Then 65 million years ago they suddenly disappeared．Many scientists believe that the Earth was hit by a piece of object in space．The dinosaurs couldn’t live through the cold climate that followed and they died out．Will we meet the same and ?What is mainly described in the passage ?
| A．A historic discovery． | B．An event of imagination |
| C．A research on space． | D．A scientific adventure． |
When the first piece hits the South Atlantic , it causes ．
| A．an earthquake | B．damages to cities |
| C．an Earth explosion | D．huge waves |
Why can’t the northern half of the earth escape for long ?
| A．Because the land is covered with water |
| B．Because the light and heat from the sun can not reach the earth． |
| C．Because people there can not live at the temperature of zero． |
| D．Because wars break out among countries． |
By giving the example of dinosaurs , the author tries to prove ．
| A．animals could not live in the cold climate |
| B．what happened 65 million years ago was an invented story |
| C．the human beings will die out in 2094 |
| D．the Earth could be hit by other objects in space |
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