题目内容

【题目】 Earthquake rescue robots have experienced their final tests in Beijing. Their designers say that with these robots, rescue workers will be able to have more time to save more lives during an earthquake.

This robot looking like a helicopter(直升机) is called the flying robot . It's about 3 meters long, and it took about 4 years to develop the model. Its main functions(作用)are to collect information from the air, and send goods of up to 30 kilos to people trapped by an earthquake. It has a high-definition 360-degree panoramic(全景的) camera. It can work day and night and is also able to send the latest pictures from the quake area.

Dr. Qi Juntong, a researcher at Chinese Academy of Science, said, 'Unlike other automatic machines, the most important feature of this flying robot is that it doesn't need a distant control. We just set the destination information on it, and then it takes off, and lands by itself. It flies as high as 3,000 meters, and as fast as 100 kilometers per hour. '

This robot has another different function --- it can change as the environment changes. Its main job is to search for any signs of life in places where human rescuers are unable to go. As well as a detector(探测器)that finds victims and detects poisonous gas, a camera is placed in the 3-meter-long robot, which can work in the dark. Another use for the rescuers is the supply bot, with its 10-meter-long pipe, people who are trapped in the ruins will be able to get supplies including oxygen and liquids.

Experts have said that the robots will enter production and serve as part of the national earthquake rescue team as soon as next year.

1What can we learn about from the passage?

A.It hasn't been put into production so far.

B.It is a machine with a length of 10 meters.

C.It is a machine carried by a helicopter.

D.It weighs about 30 kilos.

2Dr. Qi Juntong thinks this robot is different from the others mainly because ___.

A.it has more functions

B.it has a more advanced camera

C.it can change as the environment changes

D.it can work by itself once given the information

3The underlined word 'which' in Paragraph 4 refers to___.

A.a cameraB.a detectorC.a rescuerD.a doctor

4What is the passage mainly about?

A.The appearance of the robot.B.An introduction to the robot.

C.The reason for making the robot.D.Some information about earthquakes.

【答案】

1A

2D

3A

4B

【解析】

这是一篇说明文。文章主要介绍了一种地震救援机器人的功能和特点。

1细节理解题。根据文章最后一段的Experts have said that the robots will enter production and serve as part of the national earthquake rescue team as soon as next year.可知专家说这种机器人最快在明年投入生产,作为国家地震救援队的成员,即该机器人目前还没有投入生产。A. It hasn't been put into production so far. (迄今为止它还没有投入生产)符合以上说法,故选A项。

2细节理解题。根据文章第三段的Dr. Qi Juntong, a researcher at Chinese Academy of Science, said, 'Unlike other automatic machines, the most important feature of this flying robot is that it doesn't need a distant control. We just set the destination information on it, and then it takes off, and lands by itself. It flies as high as 3,000 meters, and as fast as 100 kilometers per hour. ' (中国科学院奇骏同博士说:“与其他自动机器不同,这种飞行机器人最重要的特点是它不需要远距离控制。我们只需要设置目的地信息,然后它自己起飞,自己降落。它的飞行高度可达3000米,速度可达每小时100公里”)可知这种飞行机器人和其他机器人的最大不同之处是,设置目的地信息之后它可以自己执行。D. it can work by itself once given the information (一旦给了信息,它可以自己工作)符合以上说法,故选D项。

3词意猜测题。根据划线部分所在句子As well as a detector(探测器)that finds victims and detects poisonous gas, a camera is placed in the 3-meter-long robot, which can work in the dark.可知作为一个发现受害者和侦察有毒气体的探测器,一个相机放在这个3米长的机器人里,which可知在黑暗处工作。结合句意和句子结构可知,关系代词指代的是a camera。故选A项。

4主旨大意题。根据文章的主要内容,尤其是第一段的Earthquake rescue robots have experienced their final tests in Beijing. (地震救援机器人已经在北京通过了最后的测试),第二段的 This robot looking like a helicopter(直升机) is called the flying robot . It's about 3 meters long, and it took about 4 years to develop the model. (这种看起来像直升机的机器人被叫做飞行机器人。它们长约3米,用了四年时间完成模型),第三段的Unlike other automatic machines, the most important feature of this flying robot is that it doesn't need a distant control. (与其他自动机器不同,这种飞行机器人最重要的特点是它不需要远距离控制)和第四段的This robot has another different function --- it can change as the environment changes. (这种机器人还有另外一个不同的功能——它可以随着环境的改变而改变)可知本文主要介绍一种地震救援机器人。B. An introduction to the robot. (对这种机器人的介绍)符合以上说法,故选B项。

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【题目】 A study has shown that severe stress lasting weeks or months can damage cell communications in the brain’s memory areas. Recently, researchers from University of California, Irvine, have provided the first evidence that short-term stress lasting for a few hours has the same effect.

“Stress does exist in our lives and cannot be avoided,” said Dr. Baram, leader of the UC Irvine School. “Our findings can play an important role in the present development of medicine that might prevent these undesirable effects and offer understanding of why some people are forgetful or have difficulty keeping the memories.”

In their study, Baram and her UC Irvine colleagues identified a novel process in which stress caused these effects. They found that, severe stress activated(激活) Corticotropin Releasing Hormones(CRH), which prevented the brain from keeping memory.

Memory takes place at synapses, where there are connections through which brain cells communicate. These synapses lie on dendritic spines(神经元). In rat and mouse studies, Baram’s group saw that the release(释放) of CRH in the brain’s primary memory center led to the rapid breakup of these dendritic spines, which in turn limited the ability of synapses to collect and store memories.

In addition, the researchers reproduced the effects of stress on dendritic spines by keeping low levels of CRH, and watching how the spines ruptured over minutes. “Fortunately, once we removed the CRH, the spines seemed to grow back again, ” Baram said. “And this study can play a role in the creation of treatments to address stress-related memory loss.”

1According to the text, short-term stress can lead to ________.

A.memory lossB.cell decrease

C.head damageD.thought disorder

2The underlined word “ruptured” in Paragraph 5 is closest in meaning to ________.

A.came into beingB.built up

C.broke apartD.died away

3What is the author’s purpose of writing the text?

A.To discuss the main stages of stress.

B.To show the primary cause of stress.

C.To introduce a new finding about stress.

D.To promote an effective treatment for stress.

【题目】What to do, where to go

Take your kids for a walk on science's wild side. These festivals are full of video games, cutting-edge(尖端) tech and fun!

Festival of Learning 16-20 June

Come and join Bournemouth University as we celebrate the joy of knowledge at our Festival of Learning. We'll be sharing our learning and knowledge through 80+ free events that explore our scientific research. Come along, get inspired and learn something new with hands-on sessions, workshops, talks and exhibitions for all ages!

Summer Science Exhibition 2-8 July

Royal Society invites you to its annual exhibition, showing the UK's most cutting-edge scientific research. From the very first3 D model of the Milky Way, to using quantum physics(量子物理学)in solving mental health problems, this is your chance to meet the extraordinary scientists carrying out research that is likely to change our lives. Alongside a host of exhibitions, you can also attend one of 30 talks, family shows and workshops. Join our journey of discovery this July. Evening opening--Tuesday 3 July, adults only.

Power Up 3-19 August

Get your game face on and play awesome games from the past 40 years, from Pong and Pacman to Minecraft and Mario at the Museum of Science and Industry. Whether you're a family dropping in for a 90-minute session or a gamer at an adult-only evening session, test yourself to the limit. Book before 21 June for 20% off selected tickets.

Norwich Science Festival 19-27 October

Celebrate the wonderful world of experiments, discoveries and exploration at Norwich Science Festival. Enjoy inspirational exhibitions hands-on family activities, inspiring talks and cutting-edge discoveries. A festival for all age groups and all levels of knowledge.

1Which event should you attend if you're a game lover?

A.Power Up.B.Festival of Learning.

C.Norwich Science FestivalD.Summer Science Exhibition

2What can you do if you take part in the event held in October?

A.Attend workshopsB.Do hands-on activities

C.Go to evening sessionsD.Watch fun family shows

3What do the four events have in common?

A.They offer discounts to tour groups.B.They require early booking.

C.They are intended for kids.D.They are science-themed.

【题目】 Businesses are witnessing a difficult time, which has in turn produced influence on consumers, desire to go green. However, shoppers are still laying stress on environmental concerns.

Two thirds of customers say that environmental considerations inform their purchases to the same degree as they did a year ago, while more than a quarter say that they are now even better aware of the environmental effect on what they buy.

This may help to influence how shops store goods on their shelves. And the companies should still make efforts to become more environmentally friendly. Two out of three people think it is important to buy from environmentally responsible companies, with about one in seven saying that they had even decided to take their custom elsewhere if they felt a company’s environmental reputation was not good enough.

Harry Morrison, chief executive (主管) of the Carbon Trust, sympathizes: “I understand this situation where survival is very important now. But from environmental considerations, the clock is ticking — we don’t have much time. In addition, cutting carbon has an immediate effect as costs drop and a medium-term benefit for the brand.”

Larger companies have an extra motivation to look at reducing their carbon footprint, as new rules next year will require businesses to buy carbon allowances to make up for their emissions (排放). Those that have taken early action will have a head start. More than two thirds of consumers are not clear about which companies are environmentally responsible. This suggests that firms that are able to relay clearly their message to the public will be in a pole position to attract shoppers.

The Carbon Trust believes that it can help by informing customers about the good work companies are doing. “When companies are granted (授予) the standard, they can use a logo (标识) in all their marketing which makes it clear that they are working towards cutting emissions,” Mr. Morrison said.

1What’s the main idea of the passage?

A.Businesses are finding ways to send their message to the shoppers.

B.Companies will soon get information about cutting carbon emissions.

C.Firms are making efforts to encourage customers to keep goods at home.

D.Firms are urged to cut carbon emissions by shoppers, environmental awareness.

2The underlined word “inform” in Paragraph 2 probably means “ ”.

A.affectB.change

C.disturbD.reject

3According to Harry Morrison, businesses .

A.will benefit from cutting carbon emissions

B.should buy carbon allowances for shoppers

C.are required to make up for their carbon emissions

D.have encouraged shoppers to take their custom elsewhere

4We can learn from the passage that businesses will .

A.have a strong desire to reduce costs

B.use the same logo in their marketing

C.gain advantages by taking early action

D.attract more shoppers by storing goods

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