A survey of the opinions of experts _________...

A survey of the opinions of experts ___ that three hours of outdoor exercise a week ___ good for one’s health.

A.show;are                              B.shows;is

C.show;is                                   D.shows;are

高三英语单项填空中等难度题查看答案及解析

A survey of the opinions of experts___that three hours of outdoor exercise a week___good for one’s health.

高三英语单项填空中等难度题查看答案及解析

A survey of the opinions of experts _________ that three hours of outdoor exercise a week ________ good for one’s health.

A. show; are　　 B. shows; is

C. show; is　　 D. shows; are

高三英语单项填空中等难度题查看答案及解析

The survey ____ in our school last month shows that about three percent of the students are addicted to the Internet games.

高三英语单项填空中等难度题查看答案及解析

“Enough” with the multivitamins already. That’s the message from experts behind three new studies that tackled an often debated question: Do daily multivitamins多种维生素make you healthier?

“We believe that the case is closed - supplementing(补充) the diet of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful,” concluded the authors of the editorial summarizing the new research papers. They urge consumers to not ‘waste’ their money on multivitamins. “The ‘stop wasting your money’ means that perhaps you’re spending money on things that won’t protect you long term,” editorial co-author, Dr. Edgar Miller said, “What will protect you is if you spend the money on fruits, vegetables, nuts, beans, low fat dairy, and things like that. Exercising would probably be a better use of the money.”

The strong message was based on a review of the findings from three studies that tracked multivitamins link to cancer protection, heart health, and brain and cognitive(认知的) measures. The first study looked at vitamin supplementation’s role in preventing chronic(慢性的) disease. The next study looked at whether long-term use of multivitamins would have any effect on slowing cognitive decline. The third study looked specifically at multivitamins and minerals role in preventing heart attack. “The three studies found no difference in rates of chronic disease, heart attack and the need for hospitalization between vitamin-takers and placebo(安慰剂)-takers.” Dr. Edgar Miller stated.

One expert agreed some nutrient-deficient people may still benefit from multivitamins. “There might be an argument to continue taking a multi(vitamin) to replace or supplement your not healthy diet,” Dr. Edgar Miller added. He also notes that vitamins can benefit people with celiac disease and those who are pregnant.

1.This text is likely to be selected from a book of 　　　　　　 .

A. medicine　　　 B. education　　　 C. food　　　　 D. business

2.Which of the following is NOT Dr. Edgar Miller’s opinion according to the passage?

A. Vitamins should not be used for chronic disease prevention. Enough is enough.

B. Having a balanced diet and exercising would probably be a better way to keep healthy.

C. The three studies do not provide support for use of multivitamin supplements.

D. Taking vitamins to replace or supplement your healthy diet is necessary.

3.What can be inferred from the text?

A. Vitamin supplements have proved harmful to the health of adults.

B. Vitamin supplements are beneficial in certain conditions.

C. Nowadays taking vitamin supplements is common to most people.

D. Daily multivitamins will make you healthier.

4.The author’s purpose of writing the text is most likely to___________.　　　　　 .

A. persuade　　　 B. describe　　　　 C. inform　　　　 D. instruct

高三英语阅读理解中等难度题查看答案及解析

A 2015 survey found that two out of three U.S. teens owned an iPhone. For this reason, I call them iGen, and as I explain in my new book “iGen: Why Today’s Super-Connected Kids are Growing up Less Rebellious(反叛的), More Tolerant, Less Happy-and Completely Unprepared for Adulthood,”1..

What makes iGen different? 2.. They spend so much time on the internet, texting friends and on social media—in the large surveys I analyzed for the book, an average of about six hours per day—that they have less leisure time for everything else.

That includes what was once the favorite activity of most teens:3.. Whether it’s going to parties, shopping at the mall, watching movies or aimlessly driving around, iGen teens are participating in these social activities at a significantly lower rate than previous generations.

4.: In the annual Monitoring the Future survey, the percentage of high school seniors who read a nonrequired book or magazine nearly every day dropped from 60 percent in 1980 to only 16 percent in 2015.

This isn’t to say that iGen teens don’t have a lot going for them. 5. . They also seem to have a stronger work ethic and more realistic expectations than millennials(千禧一代) did at the same age.

To be clear, moderate smartphone and social media use—up to an hour a day—is not linked to mental health issues. However, most teens (and adults) are on their phones much more than that.

A.spending most of their free time on screens

B.hanging out with their friends

C.They would rather see their friends in person than communicate with them using their phones

D.Growing up with a smartphone has affected nearly every aspect of their lives

E.They are physically safer and more tolerant than previous generations were

F.They’re the first generation to spend their adolescence with a smartphone

G.In addition, iGen reads books, magazines and newspapers much less than previous generations did as teens

高三英语七选五中等难度题查看答案及解析

________ of the three students can repair your computer. They are all experts.

高三英语单项填空中等难度题查看答案及解析

Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic（流行病） of sleepiness in the nation．“I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr．David．Even people who think they are sleeping enough would probably be better off with more rest．

The beginning of our sleep-deficit（lack）crises can be traced back to the invention of the light bulb a century ago．From diary entries and our personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night．“The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark．” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock．“People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr．David．“They think they’re okay because they can get by on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally energetic. ”

Perhaps the most merciless robber of sleep, researches say, is the complexity of the day．Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programs．“In our society, you’re considered dynamic if you say you need only 5．5 hours’ sleep．If you’ve got to get 8．5 hours, people think you lack drive and ambition．”

To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier．“We’ve found that if you’re in sleep deficit, performance suffers,” says Dr．David．“Short-term memory is weakened, as are abilities to make decisions and to concentrate．”

1.What is the main topic of the passage?

A. The history of people’s sleeping patterns．

B. The epidemic of sleepiness in the modern times．

C. Research on the causes and consequences of sleep-deficit．

D. The minimum of our sleeping hours．

2.Which of the following is Dr．David’s opinion?

A. People’s metal power suffers if they are lacking in sleep．

B. Some people can remain energetic with only 6．5 hours’ sleep a night．

C. If they get 8．5 hours’ sleep, people will be full of drive and ambition．

D. People who think they are sleeping enough are better off than those who don't．

3.People in the 18th and 19th centuries slept about 9．5 hours a night because _______．

A. they had no electricity

B. they knew what was best for their health

C. they were forced by their parents to do so

D. they were not so dynamic and ambitious as modern people are

4.The major cause of sleep-deficit of modern people is _______．

A. the endless TV programs in the evenings and the internet

B. the heavy work load of the day

C. the sufficient energy modern people usually have

D. loud noises in the modern cities

5.What does the word “subjects” in paragraph 4 mean?

A. Person or thing that is being discussed or described．

B. Branch of knowledge studied in a school．

C. Person or thing being treated in a certain way or being experimented on．

D. Any member of a State apart from the supreme ruler．

高三英语简单题查看答案及解析

Judging from recent surveys, most experts in sleep behaviour agree that there is virtually an epidemic （流行病）of sleepiness in the nation. “I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr. David. Even people who think they are sleeping enough would probably be better off with more rest.

The beginning of our sleep-deficit crises can be traced back to the invention of the light bulb a century ago. From diary entries and our personal accounts from the 18^th and 19^th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. “The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark.” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7. 5 and 8 hours, and most people had to wake to an alarm clock. “People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr. David. “They think they’re okey because they can get by on 6. 5 hours, when they really need 7. 5, 8 or even more to feel ideally energetic. ”

Perhaps the most merciless robber of sleep, researches say, is the complexity of the day. Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programme. “In our society, you’re considered dynamic if you say you need only 5. 5 hours’ sleep. If you’ve got to get 8. 5 hours, people think you lack drive and ambition. ”

To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiting them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. “We’ve found that if you’re in sleep deficit, performance suffers,” says Dr. David. “Short-term memory is weakened, as are abilities to make decisions and to concentrate. ”

1.What is the main topic of the passage?

A. Research on the causes and consequences of sleep-deficit.

B. The epidemic of sleepiness in the modern times.

C. The history of people’s sleeping patterns.

D. The minimum of our sleeping hours.

2.Which of the following is Dr. David’s opinion?

A. People who think they are sleeping enough are better off than those who don't.

B. Some people can remain energetic with only 6. 5 hours’ sleep a night.

C. If they get 8. 5 hours’ sleep, people will be full of drive and ambition.

D. People’s metal power suffers if they are lacking in sleep.

3.People in the 18^th and 19^th centuries slept about 9. 5 hours a night because _______.

A. they were forced by their parents to do so

B. they knew what was best for their health

C. they had no electricity

D. they were not so dynamic and ambitious as modern people are

4.What does the word “subjects” in paragraph 4 mean?

A. Persons or things being discussed or described.

B. Branches of knowledge studied in a school.

C. Persons or things being treated in a certain way or being experimented on.

D. Any member of a state apart from the the supreme ruler.

高三英语阅读理解中等难度题查看答案及解析

—What is the result of the survey?

—15% of those surveyed worry that in the long term children _________ be more dependent

on their parents, which does no good to them.

A. should               B. can              C. may              D. shall

高三英语单项填空困难题查看答案及解析