Recently quite a lot of experts have suggeste...

Recently quite a lot of experts have suggested that another law on wildlife protection      as soon as possible．

高二英语单项填空简单题查看答案及解析

Experts recently suggested that teens should start adopting early bedtimes. Before you dismiss it as a habit suited only for young kids, consider that there are serious advantages in being well-rested. And now, even more research suggests that putting phones away before going to sleep is important to teens’ well-being.

A new study from Seton Hall University School of Health and Medicine Science found that 62 percent of kids used their smart phones before bed, and it’s causing less sleep and poor performance in school.

Those teens who text(发短信) before bedtime tend to go to sleep later, and get up later in the morning. Such behavior can be associated with mental health issues like depression or anxiety. Besides, once teens do receive a text, experts found, they tend to respond right away. Then the text conversation continues — resulting in an even later bedtime.

The study’s co-author Dr. Peter Polos says this leads to excessive stimulation(过度刺激) at night. Light from electronic devices can block the secretion(分泌) of melatonin — a hormone(荷尔蒙) that promotes sleep, which makes sleep difficult in the face of overuse of smart phones at night. It’s true! More screen time means less sleep time; other studies have suggested the same idea.

As for a final piece of advice, Dr. Sushanth Bhat says, since getting the proper amount of sleep is very important for brain development and learning in the teenage years, our study should encourage parents and guardians (监护人) to limit adolescent smart phone usage at night. Keep in mind that teens aren’t the only ones addicted to their phones! Adults can also benefit from setting a tech curfew(宵禁) for themselves. After all, kids learn by example!

1.What is the text mainly about?

A. How to promote sleep.

B. How kids learn from their parents.

C. The advantages of going to bed early.

D. The disadvantages of phone usage before bed.

2.Who are likely to go to sleep later according to the text?

A. Kids having text conversations before bed.

B. Kids putting their phones away at night.

C. Kids studying their lessons hard at school.

D. Kids exercising with friends after school.

3.Melatonin can ________.

A. make sleep difficult　　　　　　　　　　　 B. lead to later bedtimes

C. help people fall asleep　　　　　　　　　　 D. wake people from a sleep

4.The author advises parents to ________.

A. learn from their kids

B. get rid of smart phones

C. set a good example to their kids

D. try to benefit from hi-tech development

高二英语阅读理解中等难度题查看答案及解析

The expert’s suggestion is that the villagers in Yunnan Province should have __________ to fresh and clean water as soon as possible.

A. entry                                B. path          C. approach               D. access

高二英语单项填空简单题查看答案及解析

Experts have recently found that making conversation plays an essential part in connecting with people and building closer relationships. Although most people can hold a conversation, only a few are smooth when they talk. If you have dreamed about being a good talker, or you just want to make some change, then listen up!

●Talk slowly

Generally, good talkers don’t rush into a conversation. 1. They act as if they have all the time in the world. This makes them come off as centered and collected. Model this way of talking and you will create the same effect.

●Hold more eye contact

Most people keep eye contact about 2/3 of the time or less when they talk. 2. This will convey confidence and interest in interacting with them.

3.

People with good conversation skills are more likely to notice the kind of things that the average person doesn’t notice, and to bring such details into the conversation. They may notice and point out an interesting ring on the other person’s hand, a certain foreign accent, or a certain voice tone they use when saying a name. All these details help to leave a deep impression.

●Express Your emotions

4. Express your feelings about those facts. Keep in mind that it is at the emotional (情感) level that people connect best.

●Use the best words

The ability to talk smoothly has a lot to do with choosing the precise(精确的) words to convey your precise feelings or thoughts. 5. It will help you develop a way with words and allow you to express yourself more easily.

Conversational skills don’t improve just like that. It takes time, practice and the ability to learn at a rapid rate from your own experiences.

A. Notice the details.

B. Offer interesting news.

C. Improve conversational skills.

D. Don’t just present the facts—you’re not a newspaper.

E. It’s a very good idea to hold eye contact just a bit more than that.

F. Develop your vocabulary and practice communicating as accurately as possible.

G. They take their time when they think over something and when they say it out loud.

高二英语七选五中等难度题查看答案及解析

____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.

A.  A; a          B. The; /   C. /; the D. A; the

高二英语单项填空中等难度题查看答案及解析

_____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.

A. A; a        B. The; /             C. /; the                   D. A; the

高二英语单项填空中等难度题查看答案及解析

_____ new cure for this disease that medical experts have recently developed proves to be ______ most effective, although it can not completely kill all the viruses.

A. A; a        B. The; /             C. /; the                   D. A; the

高二英语单项填空中等难度题查看答案及解析

[1] Have you ever had the wish to live another 100 years or more? Experts say that scientific advances will some day enable us to live tens of years longer than what is now seen as the natural limit of the human life span.

[2] “I guess we are knocking at the door of living longer,” said Michael Zey, a Montclair State University business professor and author of two books on the future. “I think by 2075 we will ____________ and that’s a conservative estimate（保守的估计）.”

[3]At the conference in San Francisco, Donald Louris, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology（纳米技术） make it likely that humans will live in the future beyond what has been possible in the past. “There is a great push so that people can live from 120 to 180 years,” he said.

[4]However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to live past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.

[5]Scientists also differ on what kind of life the super aged might live. “It remains to be seen if you pass 120, you know; could you be healthy enough to have a good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Centre. “At present people who could get to that point are not in good health at all.”

1.What is the main idea of the passage? （no more than 10 words）

2.Please fill in the blanks in the second paragraph with proper words.（no more than 5 words）

3.According to Donald Louris, what will enable humans to live longer?（no more than 8 words）

4.What does the word “it” （Line 1, Paragraph 4) probably refer to? （no more than 10 words）

5.What did Leonard Poon worry about? （no more than 15 words）

高二英语其他题中等难度题查看答案及解析

John Snow was 1.____ expert doctor in London in the 19th century. At that time a lot of people were infected with cholera and died , so he was 2. ____ (determine) to find the cause of it so that he could help those3.____ (expose) to it .He began to gather information when another outbreak hit London in 1854. He marked on the map the exact places 4.____ the dead people had lived and found that most of5.____ (die )were near a water pump .After careful investigations John Snow announced6.____ certainty that water 7.____ (carry ) germs was 8.____ (blame) for the spreading of cholera . In order to prevent this 9.____ (happen) again , he suggested that the source of all the water supplies 10.____ (examine) and instructed the water companies not to allow people to drink the polluted water any more . At last “King Choler” was defeated .

高二英语其他题中等难度题查看答案及解析

A lot of measures have been taken recently, of　　　　 benefits, however, some are difficult to see in the short term.

A. what　　 B. whose　　 C. which　　 D. whom

高二英语单项填空中等难度题查看答案及解析