You may know all about vitamin C, but do you know why vitamin D is also important to your body? Experts from the Children's Hospital in Boston, US, have said that some teens don't get enough of this important nutrient.

    Rickets is mainly found in children. Osteoporosis, the thinning of bone, is a common problem as people get older.

    Studies in these years have found that vitamin D may also have other uses. If someone is short of vitamin D, he may have heart problems or die from some cancers.

    The easiest way to get vitamin D is from sunlight. But many people worry about getting skin cancer and skin damage from the sun. Also, even skin color has an influence. Darker skinned people get less vitamin D than lighter skinned people. Older people get less vitamin D than younger people. You can also get it from foods .Some food such as cheese and egg yolks (蛋黄) have some vitamin D. But most of vitamin D in the American diet comes from food like milk with the vitamin added.

    Now more doctors are testing for vitamin D in their patients. But some doctors worry that if people take too much vitamin D, it might be bad for their body. At the same time, skin doctors tell people to be careful with sunlight.

    Open work spaces definitely have their benefits，but they come with the drawback of offering employees little to no control over visual distractions(干扰)．With so many people around and so much going on，some of us can easily get disturbed by this information overload and lose focus in what's really important．That's where the Focus Cap comes into play．

    “As we are still cavemen or mammals kept in an unnatural environment，I believe that only by reclaiming(收回)the normal，stress-free human state through simple tools and techniques can we finally release our actual creative potential and create our meaningful work for a brighter future，”says German designer Hannes Greblin，inventor of the Focus Cap．

    After looking at other products designed at minimizing visual distractions，Greblin decided that most of them were either too expensive or too uncomfortable to become mainstream，so he decided to go with something much simpler —a simple cap with a retractable visor(可伸缩的帽沿)．

    Greblin's Focus Cap is really straightforward．You just wear it like a regular cap'with the sides of the visor retracted，and just collapse the sides whenever you need to focus on what's ahead of you．Whether you're trying to focus on a task in an open work office．Trying to study at university，or practicing yoga in a park and trying to ignore stares from strangers，the Focus Cap can help．

    To be honest，this whole project sounds like a joke，but the Focus Cap does have its own website where people interested in this unusual accessory can actually sign up for updates on when it will go on sale．Greblin claims it will cost 30 euros($37)plus shipping．

    In 1943, when I was 4, my parents moved from Coeur d'Alene, Idaho, to Fairbanks, Alaska, where adventure was never very far away.

We arrived in the summer, just in time to enjoy the midnight sun. All that sunlight was fantastic for Mom's vegetable garden. Working in the garden at midnight tended to throw her timing off, so she didn't care much about my bedtime.

    Dad was a Railway Express agent and Mom was his clerk. That left me in a mess. I usually managed to find some trouble to get into. Once I had a little Are going in the dirt basement of a hotel. I had tried to light a barrel（桶） of paint but couldn't really get a good fire going. The smoke got pretty bad, though, and when 1 made my exit, a crowd and the police were there to greet me. The policemen took my matches and drove me

    Mom and Dad were occupied in the garden and Dad told the police to keep me, and they did! I had a tour of the prison before Mom rescued me. 1 hadn't turned 5 yet.

    As I entered kindergarten, the serious cold began to set in. Would it surprise you to know that I soon left part of my tongue on a metal handrail at school?

    As for Leonhard Seppala, famous as a dog sledder (驾雪橇者), I think I knew him well because I was taken for a ride with his white dog team one Sunday. At the time I didn't realize what a superstar he was, but I do remember the ride well. I was wrapped (包裹) heavily and well sheltered from the freezing and blowing weather.

    In 1950, we moved back to Coeur d'Alene, but we got one more Alaskan adventure when Leonhard invited us eight years later by paying a visit to Idaho to attend a gathering of former neighbors of Alaska.

    Honesty is always the best policy, especially when it comes to mental health problems. In a TV 1, one girl gets very real about dealing with anxiety and panic.

    "I was the best student in my high school. I put so much 2 on myself," she said. "I never 3 a class. But I got sick during 10th grade and I started to 4. That's when the panic attacks began." She goes on to describe what a panic attack 5 like, "One day the teacher handed me my grade 6, and I couldn't breathe. My heart was beating very 7. I felt disconnected. I saw people trying to talk to me but I couldn't hear them. Afterwards, I was sent to 8," she shared.

    It was then 9 the attacks started happening 10 daily, and they haven't stopped. "Last year I started college. And I can't be the best student here no matter how hard I try," she said. "Everyone is so 11. My panic attacks got so bad that I had to 12 my first semester."

    However, now she is facing her anxiety, and things are getting better. "I used to try to hide 13. I thought that 14 nobody know, it didn't exist," she said. "But the more I talk about my 15, the more I realize that other people experience 16 things. So I'm trying to express it more. I had a great teacher 17 told me, 'Instead of letting anxiety keep you from doing your art, let it be the thing that 18 your art."

    Recently, women all over the world took to Twitter to19 what anxiety is like. We are 20 alone.

Oliver sat up in his sleeping bag, feeling glad. On a low-hanging branch a few yards away sat a great gray owl (猫头鹰)! Its face was so noticeable that he recognized it immediately. Great grays were rare and endangered, and he might never see one again. Oliver was still staring when he realized his dad was sitting up too. "See that?" His father nodded, a look of wonder on his face. "A great gray owl……I never thought I'd actually see one."

In the morning, Oliver wandered around the campsite with his binoculars (望远镜). Then he saw a big nest in an Oregon ash. He climbed up the tree and looked inside—four smooth white eggs! He fished out an old digital camera and took a bunch of photos. Back at the campsite, he showed the photos to his dad, who agreed: owl eggs.

Then Dad handed him a cellphone, "Read the news." Oliver read the headline: "New Shopping Mall Under Discussion." The new mall would have Oliver's favorite sporting goods store. Sweet, But when he read its location, his smile faded. "That's right where we saw the owl. They can't do that!" Oliver said. "I don't think they should build that mall there." He looked down at the news again. "On Tuesday there's a town council meeting to vote whether to build it there. Can I go?" "That's an excellent idea," said his dad.

But when Oliver biked over to the meeting, no one took him seriously.

"That's nice that you're interested in birds," said the town council president. "Why not write a paper for your science class?" The president was treating the 14-year-old like he was 5.

"I have photos of a nest," Olive insisted. "With eggs in it. Owls are breeding (繁殖) in that area. "

The president glanced at the photos. "The date stamp on these says 200; that's 15 years ago!"

"How could that be? I just took them!" said Oliver. But he knew the camera was old. Something must have gone wrong with it.

注意：

1）续写词数应为100左右；

2）请按如下格式在答题卡的相应位置作答。

Paragraph 1:

On the way home, Oliver's mind was busy developing a plan.

Paragraph 2:

Three days later, Oliver showed up at the town council meeting on crutches(拐杖).

After orbiting Earth for six months, the three crew members of China's Shenzhou XIII mission departed from the Tiangong space station and returned to the mother planet on Saturday morning, (finish) the nation's longest manned spaceflight.

Major General Zhai Zhigang,  was the mission commander, Senior Colonel Wang Yaping and Senior Colonel Ye Guangfu  (breathe) fresh air for the first time after the half-year space journey as ground recovery personnel opened the hatch of their reentry capsule at 10:03 am.

They were then carried out one by one by ground workers and placed onto (chair) in front of the capsule.

“I am feeling very good. We want to report to the motherland and the people that we have(success) completed the Shenzhou XIII mission. We thank all the Chinese people for their support and (encourage). Our gratitude also goes to all of those (involve) in our mission who accompanied us day and night,” Zhai told China Central Television.

“It is the power and strength of our country  built the high-flying space station. I am proud  my great motherland,” he said.

Wang, the first Chinese woman (live) in the Tiangong station told the State broadcaster that she is very happy to return to the motherland and wants to tell her little daughter that “mom has returned after reaching for the stars”.

Two hundred years ago, a device began to dominate the world of work—the clock. With its arrival, people were paid on the basis of how many hours they worked, rather than their material output, and were required by the owner to turn up for a set shift.

The clock's authoritarian rule may at last be weakening. Working remotely has brought a greater degree of freedom. A survey across six countries found that flexible working was viewed very positively, improving both people's work-life balance and productivity. Flexible workers even scored more highly on a sense of "belonging" to their organization than those on a nine-to-five schedule.

It is hardly surprising that workers prefer flexibility. Working a rigid eight-hour schedule is incredibly restricting. Those are also the hours when most shops are open, when doctors and dentists will take appointments, and when repairmen are willing to visit. Parents on a conventional routine may be able to take their children to school in the morning but are unlikely to be able to pick them up in the afternoon. Many families find themselves constantly struggling with schedules and giving up precious holiday time to deal with domestic emergencies.

On reflection, it is not too shocking that home-workers feel they are more productive. After all, few people have the ability to concentrate solidly for eight hours at a stretch. There are points in the day where people want to stare out of the window or go for a walk; these may be moments when they find inspiration or recharge themselves for the next task. When they do this in an office, they risk the boss's disapproval; at home, they can work when they are most motivated.

Of course, working remotely carries dangers: people may lose all separation between work and home life, and are likely to be stressed. To inject some human contact, companies may embrace a mixed model in which workers go into the office for part of the week. But overall, office-workers' freedom from time restrictions is to be welcomed. The clock was a cruel master and many people will be happy to escape its dominion.

                                       Cell phones：Is there a cancer link?

    Could your cell phone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and Wi-Fi could be responsible for a range of illnesses, from rashes to brain tumors.

    Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there's a greater than 95 percent chance that power lines can cause childhood leukemia (白血病). Also there's a greater than 90 percent chance that cell phones can cause brain tumors. “It's apparent now that there's a real risk, ”said Carpenter.

    But others believe these concerns are not justified. Dr Martha Linet, head of radiation epidemiology (流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don't support warning labels for cell phones, ”said Linet. “We don't have the evidence that there's much danger.”

    Studies so far suggest a weak connection between EMFs (电磁场) and illness—so weak that it might not exist at all. A multinational investigation of cell phones and brain cancer, in 13 countries outside the US, has been underway for several years. It's funded in part by the European Union, in part by a cell phone industry group. The final report should come out later this year, but data so far don't suggest a strong link between cell phone use and cancer risk.

, I really hope to have a heart-to-heart talk with you!