Theory should by no means be separated from practice. .it’s important to combine theory with practice. A．As a result B．By the way C．To be honest D．In other words 题目和参考答案——青夏教育精英家教网—

题目内容

21. Theory should by no means be separated from practice.________，it’s important to combine theory with practice.
A．As a result 　　 B．By the way　　 C．To be honest 　 D．In other words

练习册系列答案

开放课堂义务教育新课程导学案系列答案

二期课改配套教辅读物系列答案

小学单元测试卷系列答案

新课程单元检测新疆电子音像出版社系列答案

冠军练加考课时作业单元期中期末检测系列答案

相关题目

Researchers found that people become happier and experience less worry after they reach the age of fifty．In fact, they say by the age of eighty-five, people are happier with their life than they were when they were eighteen years old．

The findings came from a survey of more than 340,000 adults in the United States．The Gallup（民意调查） Organization questioned them by telephone in 2008．At that time, the people were between the ages of eighteen and eighty-five．

The researchers asked questions about emotions like happiness, sadness and worry．They also asked about mental or emotional stress．

Arthur Stone at Stony Brook University in New York led the study．His team found that levels of stress were highest among adults between the ages of twenty-two and twenty-five．The findings showed that stress levels dropped sharply after people reached their fifties．Happiness was highest among the youngest adults and those in their early seventies．The people least likely to report feeling negative emotions were those in their seventies and eighties．

Researchers say they do not know why happiness increases as people get older．One theory is that, as people grow older, they grow more thankful for what they have and have better control of their emotions．They also spend less time thinking about bad experiences．

Professor Stone says the emotional patterns could be linked to changes in how people see the world, or maybe even changes in brain chemistry．

The researchers also considered possible influences like having young children, being unemployed or being single．But they found that influences like these did not affect the levels of happiness and well-being related to age．

The study also showed that men and women have similar emotional patterns as they grow older．However, women at all ages reported more sadness, stress and worry than men．

What can be the best title of the text?

A．Happiness Varies with Ages B．Experience More, Worry Less

C．The Older, the Wiser D．Being Young, Being Happy

We can learn from the research that _________．

A．only when people get older will they feel happier

B．stress levels among the youngest are the highest

C．older people tend to be grateful

D．older people usually have no worries

According to the research, when people get older, _________．

A．they miss the old days B．they are physically weak

C．they have better self-control D．they are more emotional

What would the author probably talk about next?

A．What influences happiness． B．How to live better．

C．How to keep happier． D．Why women are less happier．

The author is intended to _________．

A．advise how to reduce stress B．introduce a scientific finding

C．describe how to do research D．talk about human emotions

阅读下面对话，并根据所给字母提示，在橫线上写出一个英语单词的完整、正确形式，使对话通顺。

M：Now we have five-day (1) c___________ every week, so we have more spare time than before.

W：Yeah. How do you spend your spare time, Timmy?

M：I have an (2) i___________ in playing the violin and I’ll continue to (3) p ___________ playing it.

W：Do you often go to a concert?

M：Yes , I like (4) l___________ to music. At present my major objective is to learn from others.

W：Do you like classical (5) m___________ or pop?

M：I like both. How do you spend your spare time then, Lily?

W：(6) P___________ the piano is my favorite activity.

M：Our hobbies are (7) s___________ to each other. I hope we can often (8) e___________ experience together.

W：So do I, but I’m weak in the theory of music.

M：Me, too. Would you like to go with me to my uncle’s ? He’s a (9) p___________ at the Institute of Music.

W：I’d be glad to go with you. I will ask him for his (10) a___________.

The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins.

　　An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”, which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted（传播）by a germ（病菌）. He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain. It was thought this would be easier for weak and sick people to digest.

　　Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients’ plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain.

　　Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice（糙米）somehow prevented or cured beri-beri — even that a lack of some ingredient（成分）in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.

According to the passage, a good mixed diet ________.

A. is suitable for losing weight B. should be only fruits and vegetables

C. normally contains enough vitamins D. is often difficult to arrange

What do we know about the disease beri-beri?

A. It killed large numbers of people. B. It resulted from lack of vitamins.

C. It was transmitted by milled rice. D. It was caused by diseased chickens.

What can be the best title of the passage?

A. A Good Mixed Diet　　　　　　 B. New Discovery

C. The Dangers of Beri-beri　　　　 D. The Importance of Vitamins

theory

A．southern B．sympathy C．smooth D．bother

Who ________ a theory about black holes?

A．put forward

B．put down

C．put away

D．put off

试题分类