predict , convince, focus on, ridiculous, attempt, aim at 1. Li Hong is such a girl who can her attention her study for a whole class. 2. Yesterday a robber, who broke into a house, was and fired to d 题目和参考答案——青夏教育精英家教网—

题目内容

predict , convince, focus on, ridiculous, attempt, aim at

1. Li Hong is such a girl who can _________her attention_________ her study for a whole class.

2. Yesterday a robber, who broke into a house, was _________ and fired to death by the policeman.

3.They_________ to stop snowing but failed.

4. Some old women, who had not received a bit of education, could_________ whether their neighbors' students could enter universities which is _________.

5.How to_________ his boss to go on hiring himself is one of his abilities.

答案：
解析：

1.focus on

2.aimed at

3.attempted

4.predict;ridiculous

5.convince
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A Concussion（脑震荡） happens when the brain is shaken, often in a car crash or a fall or a strike on; the head in sports．Concussions can be mild, but doctors may order a CT scan to look for a more serious injury．But a recent study warned that more children than necessary are being exposed to radiation this way．

A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries. They found that in many cases, the risk of developing cancer from the radiation outweighed the risk of a serious brain injury.

The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under two years of age.

The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is:

·Normal mental activity.

·No swelling in the back of the head.

·No feeling of a broken bone in the skull. (头骨)

·And no loss of consciousness for more than five seconds.

Doctors should also consider how the child was injured and whether the parents say the child is acting normally.

For patients from two to eighteen, the guidelines are similar ——except there should be no loss of consciousness, no vomiting（呕吐） and no severe headache.

Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said they should not return to sports or school until fully recovered. The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.

It often takes young people longer than adults to recover from a concussion. The experts say individual progress and not a set time period should always guide a decision to return to play. More than one million cases of concussion are reported each year in the United States alone. A congressional committee has called a hearing Wednesday to discuss legal issues related to head injuries in football.

The researchers at the -University of California found that children who received CT scans

A．were likely to suffer brain injuries

B．wouldn't have normal mental activity

C．would lose consciousness now and then

D．were likely to develop cancer

For patients from two to eight, the guidelines are similar to the ones for children under two except___________.

A. there is normal mental activity.

B. there is no swelling in the back of the head.

C. there is no feeling of a broken bone in the skull.

D. there should be no loss of consciousness

What can we learn from the last two paragraphs?

A．Texting is harmful to patients’ recovery from concussions．

B．Patients with brain injuries can play many sports．

C．Adults need a longer time than teens to recover from concussions．

D．It takes at least a year for individuals with brain injuries to fully recover．

The author of the passage mainly___．

A．describes the risks of brain injuries

B．suggests CT scans are of practical use

C．tells us about the risks of brain injury tests

D．argues against new guidelines for concussions

You can’t always predict a heavy rain or remember your umbrella.But designer Mikhail Belyaev doesn’t think that forgetting to check the weather forecast before heading out should result in you getting wet.That’s why he created Lampbrella，a lamp post with its own rain?sensing umbrella.

The designer says he come up with the idea after watching people get wet on streets in Russia.“Once，I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain.I thought it would be appropriate to have a canopy(伞篷)built into a street lamp，”he said.

The Lampbrella is a standard?looking street lamp fitted with an umbrella canopy.It has a built?in electric motor which can open or close the umbrella on demand.Sensors(传感器)then ensure that the umbrella offers pedestrians shelter whenever it starts raining.

In addition to the rain sensor，there’s also a 360°motion sensor on the fiberglass street lamp which detects whether anyone is using the Lampbrella.After three minutes of not being used the canopy is closed.

According to the designer，the Lampbrella would move at a relatively low speed，so as not to cause harm to the pedestrians.Besides，it would be grounded to protect from possible lightning strike.Each Lampbrella would offer enough shelter for several people.Being installed(安装) at 2 meters off the ground，it would only be a danger for the tallest of pedestrians.

While there are no plans to take the Lampbrella into production，Belyaev says he recently introduced his creation to one Moscow Department，and insists his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

1.For what purpose did Belyaev create the Lampbrella?

A．To predict a heavy rain.

B．To check the weather forecast.

C．To protect people from the rain.

D．To remind people to take an umbrella.

2.What do we know from Belyaev’s words in Paragraph 2?

A．His creation was inspired by an experience.

B．It rains a lot in the city of Saint Petersburg.

C．Street lamps are protected by canopies.

D．He enjoyed taking walks in the rain.

3.Which of the following shows how the Lampbrella works?

A．motor→canopy→sensors

B．sensors→motor→canopy

C．motor→sensors→canopy

D．canopy→motor→sensors

4.What does Paragraph 5 mainly tell us about the Lampbrella?

A．Its moving speed.

B．Its appearance.

C．Its installation.

D．Its safety.

5.What can be inferred from the last paragraph?

A．The designer will open a company to promote his product.

B．The Lampbrella could be put into immediate production.

C．The designer is confident that his creation is practical.

D．The Lampbrella would be put on show in Moscow.

The rapid growth of cities worldwide over the next two decades will cause significant risks to people and the global environment, according to analysis.

Researches from Yale and Stanford predict that by 2030 urban areas will expand by 590,000 square miles—nearly the size of Mongolia—to meet the needs of 1.47 billion more people living in urban areas.

“It is likely that these cities are going to be developed in places that are the most biologically diverse,” said Karen Seto, a famous scientist at Yale University. “They are going to be growing and expanding into forests, biological hotspots, savannas(热带稀缺大草原), coastlines—sensitive and vulnerable places.”

Urban areas, they found, have been expanding more rapidly along coasts. “Of all the places for cities to grow, coasts are the most sensitive. People and buildings along the coast are at risk of flooding and other environmental disasters,” said Seto.

The study provides the first estimate of how fast urban areas globally are growing and how fast they may grow in the future. “We know a lot about global patterns of urban population growth, but we know significantly less about how urban areas are changing,” she said. “Changes in land cover associated with urbanization lead to many environmental changes, from habitats loss and agricultural land conversion(转化) to changes in local and regional climate.”

The researchers examined studies that used satellite data to map urban growth and found that from 1970 to 2000 the world’s urban footprint had grown by at least 22,400 square miles—half the size of Ohio.

“This number is numerous, but, in actuality, urban land expansion has been far greater than what our analysis shows because we only looked at the published studies that used satellite data,” said Seto. “We found that 48 of the most populated urban areas have been studied using satellite data, with findings in journals. This means that we’re not tracking the physical expansion of more than half of the world’s largest cities.”

Half of urban land expansion in China is driven by a rising middle class, whereas the size of cities in India and Africa is driven primarily by population growth. “Rising incomes translate into rising demand for bigger homes and more land for urban development, which has a great effect on biodiversity conservations, loss of carbon sinks and energy use.”

1.According to the passage, the most dangerous place for city expansion is the _____.

A．forest B．desert C．savannas D．coastline

2.The underlined word “vulnerable” (in Para. 3) probably means “____”.

A．diverse in plants B．beautiful in scenery

C．easily damaged D．very productive

3.From Para. 5, we can infer that ____.

A．urbanization is a good way to improve people’s standards of living

B．cities develop very fast and more and more people come to live in cities

C．more and more agricultural farmlands are used to make room for local animals

D．in the past, researchers focused their attention on the expanding urban areas

4.Cities in Africa become bigger and bigger mainly because of their ____.

A．growing population B．rising middle class

C．unique living patterns D．economic development

The students at Sandy’s high school were badly shaken by the news that a classmate had 36 himself. The suicide note read: “It’s hard to 37 when nobody cares if you die.”

Glen, a teacher, realized this was a 38 moment about the importance of making people feel

39 . He asked his class to imagine they were about to 40 and to write a note “telling someone how and why you 41 him or her.”

Sandy, who had a 42 relationship with her mother, decided to write her 43 . Her letter read: “We’ve had some 44 times and I haven’t always been a very good 45 ,but I know I’m lucky to have you in my life. You’re the 46 person I’ve ever known, And even when I disagree with you, I never 47 you love me and want what’s best for me. Thanks for not 48 up on me”.

When her mom read the note, she cried and hugged Sandy 49 but said little.

The next morning, Sandy found a 50 on her mirror: “Dearest Sandy, I want you to know being your mother is ,by far, the most important thing in my life. 51 I got your note, I thought I had lost your love and 52 . I felt like such a failure. I intended to 53 it all last night. Your note saved my 54 .”

Be careful not to underestimate the 55 of expressed appreciation. It won’t always save a life, but it will always make someone’s life better.

A．sacrificed

B．defeated

C．abandoned

D．killed

A．live

B．imagine

C．struggle

D．think

A．sad

B．final

C．teachable

D．great

A．ashamed

B．valued

C．excited

D．scared

A．die

B．fail

C．retire

D．survive

A．miss

B．hate

C．admire

D．appreciate

A．close

B．casual

C．bad

D．personal

A．classmate

B．mom

C．father

D．teacher

A．free

B．delightful

C．pleasant

D．rough

10.

A．daughter

B．student

C．friend

D．trainer

11.

A．best

B．wisest

C．luckiest

D．gentlest

12.

A．trust

B．doubt

C．consider

D．predict

13.

A．taking

B．going

C．giving

D．looking

14.

A．coldly

B．hesitantly

C．shyly

D．tightly

15.

A．note

B．gift

C．notice

D．reminder

16.

A．Since

B．Until

C．though

D．When

17.

A．confidence

B．courage

C．respect

D．heart

18.

A．end

B．make

C．get

D．fall

19.

A．life

B．time

C．money

D．honor

20.

A．push

B．price

C．meaning

D．power

The hole in the Earth's ozone layer (臭氧层) has until now protected Antarctica from the worst effects of global warming. But scientists have warned that as the hole closes up in the next few decades, temperatures on the continent could rise by around 3°C on average, with melting ice contributing to a global sea level increase of up to 1.4 meters.

In the past decades the western Antarctic has seen rapid ice loss as the world has warmed, but the other parts of the continent have, paradoxically, been cooling, resulting in a 10% increase in ice in the seas around the region. This is because the hole in the ozone layer has increased cold winds in Antarctica, making much of the continent surface colder than usual.

But now that the gasses that cause the ozone hole have been banned, scientists expect the hole to repair itself within the next 50 to 60 years. By then the cooling effect will have faded out and the Antarctic will face the full impact of global warming. This means an increase in average air temperatures of around 3°C and a reduction in sea ice by around a third.

The biggest threat to the continent comes from warming seas. Robert Johnson, a scientist who monitors Antarctica ice sheets, said, "The ice sheets in Antarctica are hundreds of metres thick. But once warm ocean waters start flowing underneath, the ice will begin thinning and could break up very quickly. "Thinning ice sheets cause ice to break away from the continent and to melt even faster. Escaping ice from western Antarctica has already resulted in a 10% rise in global sea level in recent decades.

Johnson believes that international action to reduce global warming is required immediately or it may be too late. "Everything is connected —Antarctica may be a long way away but it is an important part of the Earth's system," said Johnson. "It contains 90% of the world's ice, 70% of the world's fresh water and that is enough, if it melts completely, to raise sea levels by 63 meters."

Even in a worse-case situation scientists don't expect the ice to entirely disappear, but predict that, because of the melting ice sheets, average sea level rise will be around 1.4 meters higher by the end of the century.

1. The underlined word "paradoxically" (in Paragraph 2) most probably means "__".

A. rapidly B. approximately C. contradictorily D. apparently

2.What is the effect of the hole in the ozone layer on Antarctica?

A. It is causing the ice to melt faster.

B. It is making much of the continent colder.

C. It is making the effects of global warming in the region worse.

D. It is reducing the amount of water in Antarctica.

3.What do scientists think is the biggest danger facing Antarctica?

A. Rising sea levels. B. Warming sea water temperature.

C. Water pollution. D. Growing ice sheets.

4.Which of the following is true according to the passage?

A. Antarctica is currently experiencing the full effects of global warming.

B. The average temperature has increased by3°C in recent decades.

C. Antarctica contains most of the world's fresh water.

D. Ten percent of Antarctica's ice has already been lost.

5. The best title for the passage is ______.

A. Our planet in danger B. Antarctica melting away

C. Action plan to save Antarctica D. Let's save the ozone layer

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