【推荐1】From talking robots and video phones to rovers(探测器) on Mars, technology has become so advanced that the previously impossible seems to occur on a daily basis.    1    

Why can't we stop the common cold? According to Peter Barlow, a scientist at Edinburgh University in the UK, the main challenge lies in the many different types of cold viruses that are produced by the rhino-viruses (鼻病毒).    2    A single cure isn't likely to work on every type of cold.

However, researches from Stanford University and the University of California have found a possible answer.     3    Without it, they can't spread inside your body.

Researchers used a gene-editing technique to test human genes and found that all the viruses were unable to replicate(复制) inside cells without a gene that produces a specific protein. Then, they tested genetically modified mice, which were completely unable to produce the protein.    4    "Lacking that gene protected the mice complete from viral infection." associate professor Jan Carette from Standford told the BBC.

Carette said the plan is to find a drug that can temporarily stop the protein, instead of producing genetically modified humans. "We have identified a fantastic target that all rhino-viruses require and depend on.    5    This is a really good first step - the second step is to have a chemical that copies this genetic deletion," he added.

A．Everything seems to be possible.

B．There are at least 160 types of them.

C．But we still have no cure for the common cold.

D．They discovered a protein that the viruses need.

E．Take that away and viruses really have no chance.

F．The mice were able to live a healthy life without it.

G．The result was unexpected and made them frustrated.

【推荐3】A concussion（震荡）happens when the brain is shaken, often in a car crash or a fall or a strike to the head in sports. Concussions can be mild, but doctors may order a CT scan to look for a more serious injury. CT provides a detailed image of the brain. But a recent study warned that     1     .

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,     2     .

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 and     3     .

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,     4     .

The report appears in the Lancet Medical Journal.

Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said     5     . The brain also needs a “rest"，they say, by restricting activities like video games, texting and watching TV. The experts say young people often take longer than adults to recover from a concussion.

A．no bleeding from the wound

B．no loss of consciousness for more than five seconds

C．lying in bed with any movement should be the best way

D．they should not return to sports or school until fully recovered

E．more children than necessary are being exposed to radiation this way

F．the guidelines are similar—except there should be no loss of consciousness

G． the risk of developing cancer from the radiation outweighed the risk of a serious brain injury

【推荐2】When you're a parent to a young child, you spend a lot of time talking about feelings: about having to share, about being disappointed because you may not have a cookie instead of broccoli(绿花椰菜）， about the great injustice of a parent pressing the elevator button before the child has a chance to.

And in a parenting culture that's increasingly concerned with centering children's needs above all else, mothers and fathers have become skillful at talking about their kids' feelings while masking their own. But new research suggests that parents who hide their negative emotions are doing their children, and themselves harm.

A study published this month says that when parents put on a faux-happy(假开心）face for their kids, they do damage to their own sense of wellbeing and authenticity.

“For the average parent the findings suggest when they attempt to hide their negative emotion expression and over express their positive emotions with their children, it actually comes at a cost: doing So may lead parents to feel worse themselves, "researcher Dr. Emily Impett, says.

It makes sense that parents often fall back on amping up(扩大）the positivity for the sake of their children-there are a lot of things in the world we want to protect our kids from. But children are often smarter than we expect and are quite in tune with what the people closest to them-their parents-are feeling.

There was a time about a year or so ago, for example, when I received some bad news over the phone; I was home with my four-year-old and so I did my best to put on a brave face. She knew immediately something was wrong though, and was confused.

When I finally let a few tears out and explained that Mom heard something sad about a friend, she was, of course, just fine. My daughter patted my shoulder, gave me a hug, and went back to playing. She felt better that she was able to help me, and the moment made a lot more sense to her emotionally than a smiling mom holding back sobs. I was glad that I could feel sad momentarily and not have to work hard to hide that.

Relaying positive feelings to your children when you don't feel them is a move the researchers called high cost-that it may seem like the most beneficial to your child at the time but that parents should find other ways of communicating emotions that" allow them to feel true to themselves”。

But this is also about children seeing the world in a more honest way. While we will want to protect our children from things that aren't age-appropriate or harmful, it's better to raise a generation of kids who understand that moms and dads are people too.

1. What is the typical behavior of parents when they bring up their children?

A．Allowing their children chances to do things themselves.

B．Expressing their dissatisfaction with their children.

C．Sharing their favorite food with their children.

D．Hiding their true feelings from their children.

2. If parents put on a faux-happy face,_

A．their children will be protected

B．their children will be taken in

C．they will experience worse feelings

D．they will feel happy as a result

3. The author mentioned the example of her daughter to show______.

A．children are not so clever as parents think

B．it's meaningful for parents to always look positive

C．children can often understand parents' true feelings

D．it's necessary to expose children to harmful things

4. We can conclude from the passage that_____

A．protecting children from age-inappropriate things is important

B．children will admire their parents more because of being protected

C．it makes sense for children to know their parents' bad feelings

D．separation from bad feelings helps children see the world honestly

【推荐3】Wild animals seem to have escaped the Indian Ocean tsunami, adding weight to ideas that they possess a “sixth sense” for disasters, experts said on Thursday.

Sri Lanka wildlife officials have said the giant waves that killed over 24,000 people along the Indian Ocean island’s coast seemingly missed wild beasts, with no dead animals found.

“No elephants are dead, not even a dead hare or rabbit. I think animals can sense disaster. They have a sixth sense. They know when things are happening.” H.D. Ratnayake, deputy director of Sri Lankan’s Wildlife Department, said on Wednesday.

The waves washed floodwaters up to 3 km (2 miles) inland at Yale National Park in the southeast, Sri Lankan’s biggest wildlife reserve and home to hundreds of wild elephants. “There has been a lot of evidence about dogs barking or birds migrating before volcanic eruptions or earthquakes. But it has not been proven,” said Matthew van Leroy, an animal behavior specialist at Johannesburg Zoo.

“There have been no specific studies because you can’t really test it in a lab or field setting.” he said.

Other authorities agreed with this conclusion.

“Wildlife seems to be able to pick up certain phenomenon, especially birds. There are many reports of birds detecting coming disasters.” said Clive Walker, who has written several books on African wildlife.

Animals certainly rely on the known senses such as smell or hearing to avoid danger such as predators (食肉动物).

The idea of an animal “sixth sense” is a lasting one that the evidence on Sri Lankan’s damaged coast is likely to add to.

1. This passage is mainly about________.

A．why animals can save them from natural disasters

B．the different opinions about animals natural power

C．how to protect the wildlife when disaster happens

D．the damage that was caused in the Indian Ocean tsunami

2. Which of the following is true according to the text？

A．It has been proved that animals have a “sixth sense”.

B．It’s generally considered that animals can sense the coming of disasters.

C．Research has been made on the special movements of animals before disasters.

D．Animals have depended on the known senses to escape the Indian Ocean tsunami.

3. What does the term “sixth sense” in the text means?

A．It is the animal’s imagination in the brain.

B．It is a kind of sense that is the same as smell or hearing.

C．It is the natural ability of animals that can save them from danger.

D．It is some hidden power to say in advance that something will happen.

4. Which section does the text most probably appear in a newspaper?

A．News Report.

B．Culture.

C．Science Fiction.

D．Discovery.