Scientists are convinced ______ the positive ...

Scientists are convinced _____ the positive effect of laughter _____ physical and mental health.

A．of; at             B．by; in             C．of; on            D．on; at

高一英语单项填空中等难度题查看答案及解析

Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.

A. of；onB. by；in　 C. of；at　 D. on；at

高一英语单项填空中等难度题查看答案及解析

Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.

A. of; at　　 　　　 B. by; in　　　　 C. of; on　　　　 D. on; at

高一英语单项填空中等难度题查看答案及解析

Scientists are convinced ________the positive effect of laughter________ physical and mental          health.

高一英语单项填空中等难度题查看答案及解析

Scientists are convinced______ the positive effect of laughter______ physical and mental health.

高一英语单项填空中等难度题查看答案及解析

Researches are convinced ______ the positive effect of laughter ______ physical and mental health.

A．of; at             B．by; in             C．of; on            D．at; on

高一英语单项填空简单题查看答案及解析

Scientists are making new studies of color and its effects on our health. They have known for a long time that the color of a room or the color of the light in it can affect our feelings and emotions. Many prisons and hospitals have at least one room that is painted pink. Officials have found that light and color can produce physical changes in our bodies.

Professor Falfan worked with a group of 9 disabled children at school in Albert. Two of the children were blind. The other seven had normal sight. The scientists changed the color of the school room, and then looked for changes in blood pressure, heart beat and breathing rate. The effects of color changes were the same for the blind children as for those with normal sight. Their blood pressure dropped from about 120 to 100. Similar changes were reported in heart-beat and the breathing. The children were also calmer and less excited. Then the colors of the room were returned to orange and white. Blood pressure, heart-beat and breathing rate went up and the children became excited again.

Professor Falfan said different colors produce different levels of light energy. He said the differences seem to affect chemicals in the brain that carry messages from nerve to nerve and from nerve to muscle.

1.Light and color can affect ________.

A．only one’s feelings and emotions

B．one’s energy

C．one’s mental changes

D．one’s heart-beat, brain activities, blood pressure, feelings and emotions

2.The color of pink had a calming effect, that is to say, the color affects ________.

A．the chemicals in the brain

B．the eyes

C．the skin

D．the muscle

3.According to the text, orange and white are colors which can make people ________.

A. calm　　 B. active　　 C. sick　　 D. blind

4.The colors in the school room mentioned in the passage were changed from ________.

A. orange to white

B. orange to dark blue

C. orange and white to pink or some other colors

D. gray to more colors

高一英语阅读理解中等难度题查看答案及解析

Scientists are making new studies of color and its effects on our health. They have known for a long time that the color of a room or the color of the light in it can affect our feelings and emotions. Many prisons and hospitals have at least one room that is painted pink. Officials have found that light and color can produce physical changes in our bodies.

Professor Falfan worked with a group of 9 disabled children at school in Albert. Two of the children were blind. The other seven had normal sight. The scientists changed the color of the school room, then looked for changes in blood pressure, heart beat and breathing rate. The effects of color changes were the same for the blind children as for those with normal sight. Their blood pressure dropped from about 120 to 100. Similar changes were reported in heart-beat and the breathing. The children also were calmer and less excited. Then the colors of the room were returned to orange and white. Blood pressure, heart-beat and breathing rate went up and the children became excited again.

Professor Falfan said different colors produce different levels of light energy. He said the differences seem to affect chemicals in the brain that carry messages from nerve to nerve and from nerve to muscle.

1.Light and color can affect________.

A．only one’s feelings and emotions

B．one’s energy

C．one’s mental changes

D．one’s heart-beat, brain activities, blood pressure, feelings and emotions

2.The color of pink had a calming effect, that is to say, the color affects __________.

A．the chemicals in the brain                 B．the eyes

C．the skin                               D．the muscle

3.According to the text, orange and white are colors which can make people ________.

A．calm             B．active            C．sick              D．blind

4.The colors in the school room mentioned in the passage were changed from _________.

A．orange to white                        B．orange and white to dark blue

C．orange and white to pink or some other colors D．gray to more colors

5.After reading the passage we can conclude that ________.

A．blind people can be affected by colors, too

B．one’s heart will beat fast in a colorful room than in a white room

C．the chemicals in the brain change with feelings and emotions

D．if one’s blood pressure drops, his breathing will get slower and slower

高一英语阅读理解中等难度题查看答案及解析

For years scientists have been worried about the effects of air pollution on the earth’s natural conditions.Some believe the air inside many houses may be more dangerous than the air outside.It may be one hundred times worse.

Indoor air pollution can cause a person to feel tired,to suffer eye pain,headache and other problems.Some pollutants(污染物质) can cause breathing disorders,diseases of blood and even cancer.Most scientists agree that every modern house has some kind of indoor pollution.

People have paid more attention to the problem now.It is said that when builders began making houses and offices,they did not waste energy.To do this they built buildings that limited the flow of air between inside and outside.They also began using man-made building materials.These materials are now known to let out harmful gases.

As the problem became more serious,scientists began searching for a way to deal with it.They discovered a natural pollution control system for buildinggreen plants.Scientists do not really know how plants control air pollution.They believe that a plant’s leaves absorb(吸收；吸引) or take in the pollutants.In exchange the plant lets out oxygen through its leaves and small organizations on its roots.Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space.Studies of different plants show that each absorbs different chemicals.So the most effective(有效的) way to clean the air is to use different kinds of plants.Having green plants inside your house can make it prettier and more healthy place.

1.Generally speaking,indoor air pollution may be more harmful than that outside because _______.

A. indoor air pollution can often make people seriously ill

B. man-made building materials give off dangerous gases

C. there may be more harmful gases outside the buildings

D. the flow of air indoors is limited,which is very harmful

2.Some kind of indoor pollution can be found in _______.

A. every modern house　　 B. every old house

C. all kinds of houses　　 D. all kinds of offices

3.The indoor air pollution is caused by _______.

A. the limit of the flow of air between inside and outside

B. the building way that the builders want to save energy

C. the building things that are made of man-made materials

D. the man-made building materials and the limit of air-flow

4.The reason why we should use different kinds of plants to clean the air is that _______.

A. plants can let out all kinds of pollutants indoors

B. plants may take in more oxygen which people need

C. plants can absorb some kinds of harmful indoor chemicals

D. plants can make our houses prettier and more healthy

高一英语阅读理解中等难度题查看答案及解析

Children moving from primary to secondary school are ill-equipped to deal with the effect of social media, as it is playing an increasingly important role in their lives and exposing (暴露) them to significant risk, according to a recent report by the Office of the Children’s officer of England.

The report shows that many children in year 7 – the first year of secondary school, when most of the students will have a phone and be active on social media – feel under pressure to be constantly connected.

They worry about their online image ,particularly when they start to follow celebrities (名人) on Instagram and platforms. They are also concerned about “sharenting” – when parents post pictures of them on social media without their permission – and worry that their parents won’t listen if they ask them to take pictures down.

The report, which was created with data from focus group interviews with 8- to 12- year- olds, says, that although most social media sites have an official age limit of 13, an estimated (估计) 75 percent of 10- to 12- year- old have a social account.

Some of them are almost addicted to “likes”, the report says. Aaron, an 11- year- old in year 7, told researchers, “If I got 150 likes, that’s pretty cool, it means they like you.” Some children described feeling inferior (下级的) to those they follow on social media. Aimee, also 11, said, “You might compare yourself because you’re not very pretty compared to them.”

Children’s officer of England Anne Longfield is calling on parents and teachers to do more to prepare children for the emotion impact of social media as they get older. She wants to see the courses set for students in year 6 and 7.

“It is also clear that social media companies are still not doing enough to stop under-13s using their platform in the first place,” Longfield said.

“Just because a child has learned the safety messages at primary school does not mean they are prepared for all the challenges that social media will present,” Longfield said.

“It means a bigger role for schools in making sure children are prepared for the emotional demands of social media. And it means social media companies need to take more responsibility,” Longfield said.

1.What can we learn from the report?

A. An increasingly number of 7- year- olds are being exposed to social media.

B. Social media occupied too much time for secondary school students.

C. Many secondary school students suffer from social media-related stress.

D. The use of social networking is causing relationship problem with friends.

2.Some students in year 7 are concerned 　　　　 .

A. about how they are seen on social media sites.

B. about becoming addicted to social media.

C. that their parents will monitor their use of social media.

D. that their parents won’t allow them to post pictures.

3.From the report, it can be concluded that some 10- to 12- year- old children 　　　　 .

A. tend to copy the celebrities they follow.

B. wish to be recognized by others.

C. ignore the number of likes they get.

D. feel inferior to their followers.

4.Anne Longfield suggests that 　　　　 .

A. parents monitor how their children use social media.

B. social media companies set an official age limit of 13.

C. social media companies create special sites for children under 13.

D. schools help equip students for the challenge of social media.

高一英语阅读理解中等难度题查看答案及解析