Watching television makes it easier for toddlers（学走路的孩子）to kick and scream, according to a U.S. study. Children under two should not watch any TV. The longer they sit in front of the box, the worse their behavior becomes.

Just having the TV on in the background, even if the child wasn’t watching it, was also connected to troublemaking behavior although the relationship wasn’t as strong, said the researchers.

“Parents should be smart about TV use,” researcher Jennifer Manganello from the University at Albany, New York, said.

“They should limit the time that children use TV, pay attention to the content of TV programs, and consider how TV is used throughout the home.”

The study looked at 3,128 women from 20 U.S. cities who had a child between 2005 and 2008.

While there was some diversity（差异）of education among the women, one-third hadn’t graduated from high school.

Two-thirds of the mothers said their three-year-old watched more than two hours of TV a day, and the average（平均的）viewing time for children was around three hours. On average, the TV was on for about five additional hours on a common day.

After accounting for factors（因素）such as living in a violent neighborhood, scientists also found watching TV was strongly connected to behavior such as hitting others, having angry moods, being disobedient（不服从的）, and screaming a lot.

The researchers thought that children may see violence on TV, and spend less time on positive development tasks such as reading or playing.

The American Academy of Paediatrics suggests no TV at all for children at two and younger, and two hours a day or less for older kids.

1.what is the main idea of the passage?

A.Children should choose positive programs.

B.Children should keep away from TV.

C.Watching TV can make children violent.

D.Parents should watch less TV.

2.what do we know from Paragraph 2?

A.Children can watch good programs.

B.Children will be affected as long as the TV is on.

C.It’s OK that the TV is on if children don’t watch it.

D.Children’s troublemaking behavior is mainly caused by watching TV.

3.what can be learned about the study between 2005~2008 from the passage?

  A.The TV was on for about three hours.

  B.The women studied have different jobs.

  C.The study included men and women.

  D.Most women allowed their child to watch TV.

4.Children who spend much time watching TV will ________.

A.not be hit by others

B.be influenced by others

C.become angry easily

D.know more about the neighborhood

Watching television makes it easier for toddlers（学走路的孩子）to kick and scream, according to a U.S. study. Children under two should not watch any TV. The longer they sit in front of the box, the worse their behavior becomes.
Just having the TV on in the background, even if the child wasn’t watching it, was also connected to troublemaking behavior although the relationship wasn’t as strong, said the researchers.
“Parents should be smart about TV use,” researcher Jennifer Manganello from the University at Albany, New York, said.
“They should limit the time that children use TV, pay attention to the content of TV programs, and consider how TV is used throughout the home.”
The study looked at 3,128 women from 20 U.S. cities who had a child between 2005 and 2008.
While there was some diversity（差异）of education among the women, one-third hadn’t graduated from high school.
Two-thirds of the mothers said their three-year-old watched more than two hours of TV a day, and the average（平均的）viewing time for children was around three hours. On average, the TV was on for about five additional hours on a common day.
After accounting for factors（因素）such as living in a violent neighborhood, scientists also found watching TV was strongly connected to behavior such as hitting others, having angry moods, being disobedient（不服从的）, and screaming a lot.
The researchers thought that children may see violence on TV, and spend less time on positive development tasks such as reading or playing.
The American Academy of Paediatrics suggests no TV at all for children at two and younger, and two hours a day or less for older kids.
【小题1】what is the main idea of the passage?

Watching television makes it easier for toddlers（学走路的孩子）to kick and scream, according to a U.S. study. Children under two should not watch any TV. The longer they sit in front of the box, the worse their behavior becomes.
Just having the TV on in the background, even if the child wasn’t watching it, was also connected to troublemaking behavior although the relationship wasn’t as strong, said the researchers.
“Parents should be smart about TV use,” researcher Jennifer Manganello from the University at Albany, New York, said.
“They should limit the time that children use TV, pay attention to the content of TV programs, and consider how TV is used throughout the home.”
The study looked at 3,128 women from 20 U.S. cities who had a child between 2005 and 2008.
While there was some diversity（差异）of education among the women, one-third hadn’t graduated from high school.
Two-thirds of the mothers said their three-year-old watched more than two hours of TV a day, and the average（平均的）viewing time for children was around three hours. On average, the TV was on for about five additional hours on a common day.
After accounting for factors（因素）such as living in a violent neighborhood, scientists also found watching TV was strongly connected to behavior such as hitting others, having angry moods, being disobedient（不服从的）, and screaming a lot.
The researchers thought that children may see violence on TV, and spend less time on positive development tasks such as reading or playing.
The American Academy of Paediatrics suggests no TV at all for children at two and younger, and two hours a day or less for older kids.

1. 1.

   what is the main idea of the passage?

   1. A.
      Children should choose positive programs.
   2. B.
      Children should keep away from TV.
   3. C.
      Watching TV can make children violent.
   4. D.
      Parents should watch less TV.
2. 2.

   what do we know from Paragraph 2?

   1. A.
      Children can watch good programs.
   2. B.
      Children will be affected as long as the TV is on.
   3. C.
      It’s OK that the TV is on if children don’t watch it.
   4. D.
      Children’s troublemaking behavior is mainly caused by watching TV.
3. 3.

   what can be learned about the study between 2005~2008 from the passage?

   1. A.
      The TV was on for about three hours.
   2. B.
      The women studied have different jobs.
   3. C.
      The study included men and women.
   4. D.
      Most women allowed their child to watch TV.
4. 4.

   Children who spend much time watching TV will ________.

   1. A.
      not be hit by others
   2. B.
      be influenced by others
   3. C.
      become angry easily
   4. D.
      know more about the neighborhood

Schedules (timetables), as the 21st century people know, simply did not exist in the 17th and 18th centuries. We are upset if a plane arrives an hour late. Our ancestors weren’t upset if an April ship didn’t show up until June. They began to worry in July and were often happy when it showed up in August. When a long-distance ship finally did get to the port, the whole city became busy and excited. Businessmen hurried down to check the goods they had ordered. The ship would probably stay in port for at least three days, often a week, to take on businessmen, give the sailors a rest, find out about the latest news, weather conditions, and so on.

Travel time could only be approximate (近似的). One never knew when the winds would be good. So even though “average(平均的) sailing time” was given, time could change considerably, shortening the voyage (travel by sea) by up to 25% or putting it off by up to 500% or more! The average run from England to Boston was about a month and a half, but there were also voyages of three months. One voyage in 1640 lasted six months!

Travel time is not the same in both directions, due to the winds and currents. This is especially true in the Caribbean, where winds are from the southeast the entire year. Ships sailing west across the Atlantic spend longer than ships sailing east, and the contrary (opposite) winds can prevent a ship from actually making it to the harbor even if it gets close. One ship was held off the North Carolina coast for 17 days before being able to land!

1.What can we learn from the first paragraph?

A. No sailor was allowed to have fun when the ship reached land.

B. People in ancient times didn’t care about other people’s safety.

C. The ship would leave for a voyage when all of the preparations were made.

D. A long-distance ship would create a lot of excitement in the place where it landed.

2.According to the passage, travel time can’t be fixed due to _____.

A. the people at the port          B. average sailing time

C. the changeable climate         D. the businessmen and the sailors

3. The underlined word “currents” in the third paragraph means ______.

A. the movement of water          B. the movement of winds

C. direction of the traveling ship    D. travel time of ships

4.What is the difference between a modern voyage timetable and the one from the 17th or 18th century?

A. There were no exact timetables for traveling both in ancient and modern times.

B. Travel time was the same in both directions in ancient times while the modern one was not.

C. The modern voyage timetable is more exact than the ancient one.

D. The modern voyage timetable is only approximate while the ancient one was not.

5.Why did the ships sailing west spend longer than ships sailing east in Caribbean?

A. Because of the southeast winds the entire year.

B. Because sailors didn’t know when the winds blew.

C. Because travel time was not affected by wind.

D. Because sometimes the ship was held off by the wind.

The most common disease in the world is the cold. It often starts with a sore throat（咽部疼痛）. You sneeze (打喷嚏) and your nose runs. You usually have a headache, too. Often you have a cough later. It's not a serious disease, but you can feel quite bad.
There isn't a cure (良药 ) for a cold, but you can take medicines to make you feel better. For example, you can take aspirin (阿司匹林) to get rid of your headache. It is good to rest, and to drink a lot of water, too. A doctor once told me, "With the right medicine, a cold will last for seven days. With no medicine, it will go on for a whole week!"
Where does our medicine come from? A long time ago, people understood that some plants made them feel better. They ate the leaves, the roots , the fruit or the seeds  of plants. For example, the juice of lemons (柠檬) makes a sore throat feel better. In modern times, scientists have looked at these plants, and found out which chemicals (化学药品) are in them. Many of our medicines today are made from those chemicals. There are some diseases that we can't cure yet. And nobody has found a cure for old age. But because of modern medicines, the average (平均的) person now lives longer than their grandparents.
1. A cold often starts with________________.
A. a headache     B. a cough   C. a pain in your throat    D. feeling a little cold
2. What should we do when we catch a cold?
A. We only take some medicine.
B. We should rest well, drink much water and have some medicine.
C. We just wait for a whole week.
D. We only need a good rest.
3. What makes a sore throat feel better?
A. The medicine aspirin.          B. A lot of water.
C. Something inside lemons.       D. The root of a plant.
4. What is the real meaning of the doctor's words?
A. There is almost no medicine that can cure the cold.
B. There is some medicine that can cure the cold.
C. You will feel well after a week when you take some medicine.
D. The cold is a serious disease.