Changing the design of a new product may ____...

Changing the design of a new product may ____ the risk of its production in the market．

A．bring about                            B．come about

C．bring up                              D．come up

高三英语单项填空中等难度题查看答案及解析

Changing the design of a new product may ______ the risk of its production in the market.

A．bring about        B．come about        C．bring up          D．come up

高三英语单项填空中等难度题查看答案及解析

Changing the design of a new product may ________ the risk of its production in the market.

A．bring about　     B．come about

C．bring up　     D．come up

高三英语单项填空中等难度题查看答案及解析

—We need a person badly to be in charge of this design.

—________ the new comer have a try?

A. May    B. Will       C. Shall    D. Need

高三英语单项填空中等难度题查看答案及解析

–We need a person badly to be in charge of this design.

--_________ the new comer have a try?

高三英语单项填空简单题查看答案及解析

Children who spend more time outdoors may have a lower risk of becoming nearsighted, new research suggests.

In the study, researchers looked at about 1,900 schoolchildren. The scientists found that the kids who had been instructed to spend more time outdoors over three years were 23 percent less likely to develop nearsightedness during this time than those who had not been instructed to spend more time outdoors. Moreover, among the kids who did become nearsighted during the study, the degree to which their eyesight worsened was slightly smaller among those who spent more time outdoors.

The researchers selected six schools and required the children, whose average age was 7 at the start of the study, to attend one additional 60-minute class of outdoor activities during each school day for three years. The parents of these children were also encouraged to engage their children in outdoor activities after school, especially during weekends and holidays. The other half of the children, from another six schools, continued their usual activity patterns. After three years, 30.4 percent of the kids in the intervention(干预) group had become nearsighted, compared with 38.5 percent of the kids in the other group.

It is not clear exactly why spending more time outside would benefit children’s eyesight, the researchers said. However, some research has suggested that the higher levels of light intensity found outdoors may increase the release of the chemical dopamine(多巴胺) of the eye. In turn, dopamine is known to restrain the type of growth in the eye that is associated with nearsightedness.

Based on the new results, the researchers recommend that children spend more time outdoors because of the potential benefits to their eyesight. However, it’s important to protect kids’ skin and eyes from UV light, which can be damaging.

1.What did the children in the intervention group do during each school day?

A. Continue to do their usual activities.

B. Spend one hour in doing eye exercises.

C. Attend an extra class of outdoor activities.

D. Participate in outdoor activities with parents.

2.What can we learn about the chemical dopamine?

A. It can control people’s growth.　　 B. It can lead to poor sight.

C. It means low levels of light intensity.　　 D. It is good to eyesight.

3.What does the underlined word “restrain” in Paragraph 4 probably mean?

A. recover.　　 B. increase.

C. limit.　　 D. convey.

4.What may be discussed in the following paragraph?

A. How to prevent kids becoming nearsighted.

B. How to protect kids’ skin and eyes from UV light.

C. How to encourage kids to join in outdoor activities.

D. How to design outdoor activities for kids to cure their nearsightedness.

高三英语阅读理解困难题查看答案及解析

The technology of electronic products is ________changing, so you needn’t follow the fashion.

A．rarely            B．approximately      C．automatically       D．constantly

高三英语单项填空简单题查看答案及解析

Before you____the design of this product, you need to study the market carefully．

A．memorise       B．confirm         C．order              D．express

高三英语单项填空中等难度题查看答案及解析

-We want someone to design the new art museum for us. -_____ the young fellow have a try?

A. May B. Shall　　 C. Will D. Need

高三英语单项填空中等难度题查看答案及解析

The following safety risks may result in serious injury or death to the user of the MINI Cooper S:

This product contains small parts that are for adult assembly (组装) only. Keep small children away when assembling. Remove all protective materials before assembly. Be sure to remove all packaging materials and parts from underneath the car body.

Battery posts contain lead known to the state of California to cause cancer and reproductive harm. Never open the battery.

Body parts such as hands, legs, hair and clothing can get caught in moving parts. Never place a body part near a moving part or wear loose clothing while using the vehicle. Always wear shoes when using the vehicle.

Using the vehicle near streets, motor vehicles, drop-offs such as steps, water (swimming pools) or other bodies of water, hills, wet areas, in alleys, at night or in the dark could result in an unexpected accident. Instead, use the vehicle on the highway. Always use the vehicle in a safe, secure environment.

Using the vehicle in unsafe conditions such as snow, rain, loose dirt, mud, or sand may result in unexpected action, for example tip over.

Using the vehicle in an unsafe manner. Examples include but are not limited to:

Pulling the vehicle with another vehicle or similar device

Allowing more than two riders

Pushing the user from the back

Traveling at an unsafe speed

Always use common sense and safe practices when using the vehicle.

Store the vehicle indoors or cover it to protect it from weather. Water will damage the motor, electric system, and battery.

1.When assembling, you should ________.

A. open the battery on the spot

B. ignore the packaging materials

C. keep small children off the spot

D. take away all protective materials

2.According to the text, it is safer to ________.

A. have at least four passengers

B. push the user from behind at the start

C. drive on the highway instead of on hills

D. wear loose clothes while using the vehicle

3.Where can you probably find the text?

A. An official report.            B. A popular magazine.

C. A physics textbook.            D. A product handbook.

高三英语阅读理解中等难度题查看答案及解析