There is bad news for students who like to us...

There is bad news for students who like to use their mobile phones while they study. New research shows that students do not learn very well when they text. Researchers 　　 1.　　 （look）at 145 American high school students in the classroom. Some of the students used their mobile phones during class, while the others had their phones 　　　 2.　　　　 (switch) off. The head researcher, Dr Jeffrey Kuznekoff, said students 　 3.　 did not use their mobile phones while the teacher was talking got 　　 4.　 (high) scores on tests they took at the end of the class.

One of the biggest 　　 5.　　 (challenge) teachers have in the classroom is the non-stop battle of 　　 6.　　 (keep) students working because students were more absorbed in social media than learning. Many students felt they needed to be online and check messages even they had important work to do in class.

　　 7.　　 is very common for students to be 　 8.　 (physical) present in class, but mentally absent because they are using their mobiles. A study found that test scores increased 9. six percent after mobile phones 　　 10.　 (ban) in class.

高三英语语法填空中等难度题查看答案及解析

None of the students in the class likes the professor， who is used to being _____ of everything they do．

A． optimistic　　　 B． criticaL

C． interested　　　 D． emotional

高三英语单项填空中等难度题查看答案及解析

It is required that the students _____ mobile phones in their school, so seldom _____them using one．

A．should not use; you will see

B．mustn’t use; will you see

C．not use; you will see

D．not use; will you see

高三英语单项填空简单题查看答案及解析

It is required that the students _____ mobile phones in their school, so seldom _____ them using one.

A. should not use; you will see

B. mustn’t use; will you see

C. not use; you will see

D. not use; will you see

高三英语单项填空中等难度题查看答案及解析

It is required that the students _____ mobile phones in their school, so seldom _____ them using one.

A. should not use; you will see

B. mustn’t use; will you see

C. not use; you will see

D. not use; will you see

高三英语单项填空中等难度题查看答案及解析

FRIDAY, Aug. 3 (Health Day News) -- Middle school students who are physically fit are likely to score higher on standardized tests measuring reading and math abilities, a new study has found. And, the average scores went up in connection with levels of fitness, the findings showed.

“The more physically fit kids were, the higher their scores,” said the study’s lead author, Trent Petrie, director of the Center for Sport Psychology at the University of North Texas in Denton. “Parents should encourage their kids to be physically active. There are some real cognitive (认知的) and academic benefits that come from physical fitness”, Petrie said.

Results of the study are scheduled to be presented Friday at the annual meeting of the American Psychological Association in Orlando, Fla. The study included more than 1,200 middle school students from five schools in a suburban area of Texas, with 561 boys and 650 girls. About 57 percent of the children were white, and nearly one-quarter were Mexican American. Nine percent were black and about 2 percent were of Asian descent.

The school district provided the researchers with information on the children’s race, age, grade level and whether they qualified for the free school lunch program, which was an indicator of the family’s socioeconomic status. The schools also provided scores to the tests, which were given between one and four months after the researchers had assessed the children’s levels of fitness. Fitness tests were administered during physical education classes to determine the youngsters’ heart and lung health (cardiorespiratory fitness), as well as their body mass index (BMI), an indicator of how much body fat a person has. The children also filled out questionnaires that helped the researchers determine factors such as self-esteem and social support.

After accounting for factors such as age, sex, family income and self-esteem, the researchers found that for both boys and girls, higher levels of heart and lung health predicted better scores on both the math and reading tests.

For boys, perceived (感观的) social support also seemed to increase their reading scores, the investigators found. In girls, while being physically fit predicted higher reading scores, so too did a higher BMI-- which indicates more body fat. “We were a little surprised by this finding,” Petrie said.

“It was not as strong an association as the one with physical fitness,” he added. The authors suspect it may have something to do with girls this age entering adolescence, which may be related to a higher BMI and slightly higher brain development. He said he plans to make great effort to look for this relationship again in larger studies to see if it was a chance finding, or if the association holds up.

“While we can’t say 100 percent that physical fitness causes better academic performance, we can say that there is a strong and predictive relationship between physical fitness and academic performance,” Petrie said.

“It’s hard to tease apart (梳理) the exact reason for this association,” said Becky Hashim, an attending clinical psychologist and assistant professor in the departments of psychiatry and pediatrics at the Children’s Hospital of Montefiore, in New York City.

“It may be that the children are getting more oxygen. When the heart and lungs are working at a higher capacity, it may allow the brain to work at peak performance. Children who are less fit may be sleepier during school,” she noted. “I personally feel that there’s probably a strong relationship between the confidence you get from being able to do something physical well and academic performance.”

Whatever the reason behind this association may be, “there’s certainly no harm in pushing physical fitness,” Hashim added. “Physical fitness may make you feel better, give you more confidence and improve your performance across the board,” she said.

Petrie agreed. “Physically fit kids are happier, have higher self-esteem and, tend to have better relationships, and now we’re beginning to see that there also seem to be benefits cognitively and academically. Our study sends a strong warning to policymakers to reconsider the service program of physical education classes for kids,” he said.

1.How did the school district help the researchers carry out the study?

A．By analyzing the data of fitness tests.

B．By giving some basic information.

C．By completing some questionnaires.

D．By offering a certain amount of Money.

2.According to the passage, the result of the study will be published ______.

A．in a book          B．in a journal        C．at a conference     D．on the Internet

3.What’s the suitable title of the passage?

A．Parents should be aware of the benefit of fitness.

B．Fitter kids are likely to make better grades.

C．Fitness affects kids’ social behavior greatly.

D．Teachers should value physical education classes.

4.What’s Becky Hashim’s attitude towards the relationship between physical fitness and academic performance?

A．Supportive        B．Indifferent         C．Critical            D．Doubtful

5.What does the underlined word “one” in Paragraph refer to?

A．The BMI.          B．The body fat.       C．The brain development.   D．The test score.

6.From the last paragraph we can infer that physically fit kids ______.

A．deserve to be treated well                B．live much longer than others

C．get along well with others                 D．enjoy a peaceful life

高三英语阅读理解中等难度题查看答案及解析

There is some unwelcome news for students preparing for exams and officers putting in long hours-----you don't need the break as much as you may think that makes you feel less tired.

Scientists have long assumed that willpower (意志力) is a limited resource, which is why you feel the need to have a rest, have a snack and come back to a task when you're feeling better. They argued that the only way to restore willpower was by rest, food or entertainment.

But psychologists have challenged this theory, saying weak willpower is all in your head. They found that people's beliefs in willpower determine how long and how well they'll be able to work on a tough mental exercise. "If you think of willpower as something that's limited, you're more likely to be tired when you perform a difficult task," said Prof.Veronika Job. "'But if you think of willpower as something that is not easily used up, you can go on and on."

The researchers designed four experiments to test students'-beliefs in willpower. After a tiring task, those, who believed or were led to believe that willpower is a limited resource, performed worse on standard concentration tests than those who thought of willpower as something they had more control over. They also found that leading up to final exam week, students who believed the limited resource theory ate junk food 24 percent more often than those who believed they had more control in resisting temptation (诱惑).

Mr. Job said. "The theory that willpower is a limited resource is interesting, but it has had unintended consequences. Students who may already have trouble studying are being told that their power of concentration is limited, and they need to take frequent breaks. But a belief in willpower as a non-limited resource makes people stronger in their ability to work through challenges.'"

The findings could help people who are battling temptation. Willpower isn't driven by a biologically based process as much as we used to think. The belief in it is what influences your behavior.

1.The theory that willpower is limited supports that _________.

A. people must eat snacks when they feel tired

B. people do need a break to restore their willpower

C. there’s no way to strengthen people’s willpower

D. weak willpower doesn’t affect people’s life much

2.What have the scientists long believed regarding willpower?

A. It is in the charge of people.

B. It is a limited resource.

C. There is no way to restore willpower.

D. It doesn’t easily run out.

3.Which of the following best helps the students to prepare better for their exams?

A. Push themselves even if they want to take a break.

B. Don’t eat fast food while studying.

C. Remind themselves willpower is not limited.

D. Stay in a comfortable and quiet place.

4.What’s the best title for the passage?

A. A new theory about willpower

B. How to build strong willpower

C. The great influence of willpower

D. Willpower doesn’t last long

高三英语阅读理解中等难度题查看答案及解析

_____ playing dumb with teachers. They know very well their students.

A. It’s no use　　　　 B. There is no doubt　　 C. It’s no wonder　　 D. There is no need

高三英语单项填空简单题查看答案及解析

Mr. Smith, there is a man at _____front door who says he has _____important news for you.

A. the; an         B. /; /          C. the; /       D /; an

高三英语单项填空简单题查看答案及解析

It’s required that the students______ mobile phones in their school, so seldom ______ them using one.

A. not use; will you see                B. should not use; you will see

C. don’t use; will you see              D. would not use; you will see

高三英语单项填空中等难度题查看答案及解析