___ that may generally reduce the amount of l...

___ that may generally reduce the amount of labor needed on construction sites by 90 percent.

A．So clever the construction robots

B．Such construction robots are clever

C．So clever are the construction robots

D．Such clever construction robots are

高二英语单项填空困难题查看答案及解析

_______ that they may eventually reduce the amount of labor needed on construction sites by 90 percent.

A. Such construction robots are clever

B. So clever the construction robots are

C. So clever are the construction robots

D. Such clever construction robots are

高二英语单项填空中等难度题查看答案及解析

It is high time that we ____ the amount of carbon dioxide in our daily life.

A. reduce     B reduced    C will reduce   D reduces

高二英语单项填空中等难度题查看答案及解析

Enough sleep is important to health. The amount of sleep needed 1.(depend) on the age of the person and the conditions in 2.sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with3.than this amount, but 4.may need more. Every person knows his own need. 5. is then a matter of good judgment to satisfy his need. Sleep 6. always be enough to make one bring back his 7.(strong) and get ready for a day’s work.

Fresh air is necessary to sound sleep. So it is not without reason for some people to think that it is practicable to sleep in the open air. A bath at bedtime, 8.hot nor cool but of body temperature, may be 9.(help) to sleep. Sleep producing drug(帮助睡眠的药物) should never be taken except when 10.(suggest) by a doctor.

高二英语完形填空中等难度题查看答案及解析

1.If a Canadian who is on a 7-day trip to New York buys $ 800 CAN worth of goods, how much should he pay tax on when returning home?

A. $ 800 CAN        B. $750 CAN　　　 C.$ 400 CAN        D. $ 50 CAN

2.For an American citizen on a 2-day tour of Canada, how much tax does he have to pay on $ 1.600 US worth of purchases when returning to the US?

A. $ 24 US            B. $ 48 US　　　　 C. $52 US            D. $ 200 US

3.What documentation should a couple with a 7-year-old child carry when they drive a car from Canada to America?

A. A BC driver’s license, an Air NEXUS card, and a birth certificate.

B. An Air NEXUS card, a U.S. Coast Guard Merchant Marine Document, and a birth certificate.

C. Two valid passport cards and a certified copy of a birth certificate.

D. A NEXUS card, a U.S. Coast Guard Merchant Marine Document., and a certified copy of a birth certificate.

高二英语阅读理解中等难度题查看答案及解析

Reducing the amount of sleep affects students’ performance at school. An American study asked schoolteachers to look at the effects of sleep restriction(限制） on children between six and twelve years of age. The teachers found that children who stayed up late had trouble thinking clearly and had more learning problems.

1. 　　　　　　 Doctor Fallone now works at the Forest Institute of Professional Psychology in Springfield, Missouri. He presented the results last month at a science reporter conference in Washington, D. C.. The publication Sleep also reported the findings.

The teachers were asked to complete weekly performance reports on seventy-four schoolchildren. The study lasted three weeks. During that period, Doctor Fallone and his team controlled the amount of sleep the children received.

2. 　　　　　 During another week, every child was kept awake later than normal. Each night, the youngest boys and girls had less than eight hours of sleep. The older ones were limited to six and a half hours. During the final week of the study, each child received no less than ten hours of sleep a night.

The teachers were not told about how much sleep the students received. The study found that students who received eight hours or less had the most difficult remembering old information. 3.

The study did not find that sleep restriction caused hyperactivity(极度活跃) in the children. 4.　　　　　　　 .

Doctor Fallone said that the results provided experts and parents with a clear message: 5.

A. The sleeping time that the students have can be changed easily.

B. They also had trouble learning new information, completing difficult work and following directions.

C. During one week, the children went to bed and awoke at their usual time.

D. The teacher should restrict the amount of the sleep of the students.

E. Gahan Fallone did the study at the Brown Medical School and Bradley Hospital in the state of Rhode Island.

F. The teachers reported that students were, in fact, a little less active at school when they got less sleep.

G. When a child has learning problems, the issue of sleep must be considered among the possible causes.

高二英语其他题中等难度题查看答案及解析

Reducing the amount of salt in our diets could save nearly 20,000 lives in the UK every year, according to researchers.

The recommended maximum daily intake for adults is 6g in the UK, although just month the World Health Organization (WHO) revised this down to 5g. Yet according to figures from the British Heat Foundation, men consume around 9.7g a day, while women have 7.7 g.

Not researchers at three universities, including Harvard Medical School, have revealed the dramatic effect reducing salt could have on death rates by using computer models. They estimated that reducing salt intake to 6g would save 500,000 to 850,000 lives in the US over the next decade.

British doctor Ian Campbell, medical director of charity Weight Concern, told Mail Online: Salt is a big problem in the UK, too. It’s a silent killer. Over time consuming too much of it increases the risk of high blood pressure, which can lead to heart attacks. About 80 percent of our salt intake comes from processed foods, so it can be difficult to avoid.

Many people are unaware of where salt is hidden, such as bread, soups, ready meals, and even breakfast cereals (麦片). The government approach has been to encourage food companies to cut the amount of salt in their products. There has been a reduction but it is taking too long. The Food Standards Agency should consider setting compulsory maximum levels for salt.

Victoria Taylor, Senior Dietitian at the British Heat Foundation, added: Eating too much salt may raise your blood pressure and having high blood pressure increases your risk of developing heart disease.

The government has worked with the food industry to reduce the amount of salt in our food and make labels clearer. But there is still work to be down by everyone because the majority of Brits are still consuming more salt than they would be.

1.Which of the following in the table reaches the daily maximum amount of salt recommended by the WHO?

A. A large chips and a McDonald’s Big Mac.

B. A spicy crayfish and a large chips.

C. An original chicken and a spicy crayfish.

D. A McDonald’s Big Mac and an original chicken.

2.According to the passage, when people eat processed food they ________.

A. needn’t add salt

B. should add a little salt

C. may ruin their health

D. can have risk of heart attacks

3.To solve the problem of eating too much salt, Ian Campbell advises ________.

A. having healthier breakfast

B. punishing the illegal food companies

C. reducing the amount of processed food

D. making laws about maximum levels for salt

4.The last paragraph emphasizes the importance of ________.

A. making food tables clearer

B. monitoring the food industry

C. promoting the awareness of salt content

D. strengthening the government’s functions

高二英语阅读理解中等难度题查看答案及解析

It is reported that large amounts of money________ spent on the bridge so far.

A．was              B．has been          C．were             D．have been

高二英语单项填空中等难度题查看答案及解析

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Reducing the amount of sleep affects students’ performance at school. An American study asked schoolteachers to look at the effects of sleep restriction（限制） on children between six and twelve years of age. The teachers found that children who stayed up late had trouble thinking clearly and had more learning problems.

1.　 Doctor Fallone now works at the Forest Institute of Professional Psychology in Springfield, Missouri. He presented the results last month at a science reporter conference in Washington, D. C. The Publication Sleep also reported the findings.

The teachers were asked to complete weekly performance reports on seventy-four schoolchildren. The study lasted three weeks. During that period, Doctor Fallone and his team controlled the amount of sleep the children received.

2.　 During another week, every child was kept awake later than normal. Each night, the youngest boys and girls had less than eight hours of sleep. The older ones were limited to six and a half hours. During the final week of the study, each child received no less than ten hours of sleep a night.

The teachers were not told about how much sleep the students received. The study found that students who received eight hours or less had the most difficulty remembering old information.　 33.

The study did not find that sleep restriction caused hyperactivity(极度活跃) in the children. 　 4.

Doctor Fallone said that the results provided experts and parents with a clear message: 　 5.

A. The sleeping time that the students have can be changed easily.

B. They also had trouble learning new information, completing difficult work and following directions.

C. During one week, the children went to bed and awoke at their usual time.

D. The teacher should restrict the amount of sleep of the students.

E. Gahan Fallone did the study at the Brown Medical School and Bradley Hospital in the state of Rhode Island.

F. The teachers reported that students were, in fact, a little less active at school when they got less sleep.

G. When a child has learning problems, the issue of sleep must be considered among the possible causes.

高二英语七选五中等难度题查看答案及解析

The plan to be carried out next month needs ______ among the members of the labor union before ______.

高二英语单项填空中等难度题查看答案及解析