题目内容

If you’re wondering when you might get the flu, a new study indicates you should keep an eye on your local weather report.

According to a research published in the Journal of Clinical Virology, if you keep your eye on the weather and watch for the first major dip in the temperature, you can essentially mark your calendar in prediction for an outbreak the flu.

To figure out how the weather and flu outbreak may be connected, researchers analyzed statistics of 20,000 people in an area over three seasons. The number of people who caught the flu was then compared with local weather data.

After each season, the team noticed one consistent finding: The first really cold period with low outdoor temperatures and low humidity (湿度) was always followed by a week of a mass influenza outbreak.

The researchers say that aerosol particles (气溶胶粒子) containing virus and liquid are more able to spread in cold and dry weather. So, in theory, if you sneeze or cough and the surrounding air is very dry, the air will absorb the moisture and the particles containing the virus keep spreading through the air for a longer period of time.

Luckily there are ways to keep off the illness regardless of the weather. Washing your hands, coughing into the crook (弯曲) of your arm and getting vaccine (疫苗) are the best ways to prevent the flu from spreading. People over the age of 65, pregnant women and young children are at the highest risk of developing complications (并发症) related to the virus, according to the CDC.

1.From the first paragraph we can infer that .

A. people may easily fall sick

B. nobody can predict when one gets flu

C. flu is often related to weather changes

D. weather report plays an important part in life

2.How did the researchers draw the conclusion of the study?

A. By analyzing the data

B. By doing questionnaires

C. .By carrying out experiments

D. By making observation

3.Why do people catch the flu easily in cold and dry weather?

A. Cold and dry weather helps the spread of virus

B. The colder it is, the more kinds of flu there are

C. Gold and dry weather can prevent people from doing exercise

D. Low temperature can increase the number of aerosol particles

4.What can we learn about from the last paragraph?

A. The vaccines for flu

B. The main ways to cure flu

C. The most common kind of flu virus

D. The people who are easy to get flu

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Is it your dream to fly and to work in space? Do you want to be a NASA astronaut? Like many jobs, the first thing would be to fill out the application. A record-breaking 18,300 people filled out applications recently when NASA announced it was filling its 2017 Astronaut Candidate program. But out of those 18.300 applicants, just eight to 14 will be hired by the U.S. space agency.

It will take 18 months to decide who will be in the new class of astronauts. NASA will review all of the files, which will later go to its current team of astronauts, to make sure they meet the basic qualifications.

The first requirement is the applicants must be U.S. citizens. They need a college degree in engineering, biological science, physical science, computer science, or mathematics. They also need at least three years of experience in a similar field or at least 1,000 hours as a jet airline pilot.

There are requirements to pass a physical test. And then there are personality qualities tests as well. What kinds of personalities is NASA looking for in an astronaut? NASA’s Selection Manager Anne Roemer said, “I think leadership , teamwork, the ability to not only work on a team, lead a team, but also follow, be a follower on a team. Communication certainly plays a role, so it’s some pretty common skills that I think translate into even other professions.”

About 120 applicants will be invited to the Johnson Space Centre in Houston, Texas, for a first round of interviews, about half of whom will go back for a second round. Once selected, they must complete two years of training in everything about spaceflight-things like learning about all the systems used by NASA, walking in space and Russian language training. Until the U.S. has a working vehicle to launch into space, NASA still depends on Russia to get astronauts into space.

1.What is the percentage of employment among the applicants?

A. About half of them B. About 8 to 14

C. About 120 applicants D. Less than 0.08 percent

2.Which do you think is the most important personality quality according to NASA’S Selection Manager?

A. Devotion B. Team spirit

C. Communication D. Perseverance

3.Which is NOT the basic requirement the applicants have to meet?

A. A college degree in required areas.

B. Related experience.

C. Speaking Russian fluently.

D. Passing physical and personality tests.

4.Which may be the best title for the passage?

A. What is takes to be an astronaut?

B. What an astronaut should train in?

C. NASA welcome its most applicants ever.

D. NASA 2017 Astronaut Candidate program.

Your teen is falling asleep in class

Teens have a busy morning schedule as they need to wake up and get moving very early in order to catch a bus and get to school by the required time. This means teens need to get their rest the night before or they will be too tired to learn anything at school. 1.

When a teen falls asleep in class, two things happen: he/she misses what is being taught and he/she loses the respect of the teacher. He/She may also receive a consequence from the school, depending on the classroom discipline policy. 2.

To prevent your teen from being sleepy in class, try these three tips:

* Set a time for “lights out” on school nights. This is never be any later than 10 p. m. and preferably 9 p.m. 3. Soft music can be on and used to help calm your teen.

* Help your teen develop a nighttime routine that involves activities that slow them down for the end of the day. 4. Turning off the computer and disconnecting from friends and the excitement of the day an hour before bedtime will also help your teen relax.

* 5. This will reinforce (增强)what it feels like to be rested and capable of accomplishing what he/she wants.

A. What’s worse, they may even fall asleep in class.

B. Taking a bath and reading are two activities that work well.

C. Set a good example and show him/her your love for learning.

D. Point out the positives after your teen has had a good night’s rest.

E. All of these things affect your teen’s academic success and can be avoided.

F. “Lights out” means the computer, television, lights and cell phone should be off.

G. While your teen keeps his/her goals in line with your expectations, he/she may have his/her own goals.

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