A blind baby is doubly handicapped. Not only is it unable to see, but because it cannot receive the visual stimulus（刺激）from its environment that a sighted child does, it is likely to be slow in intellectual development. Now the ten-month old son of Dr. and Mrs. Dennis Daughters is the subject of an unusual psychological experiment designed to prevent a lag（滞后）in the learning process. With the aid of a sonar-type electronic that he wears on his head, infant(婴儿) Dennis is learning to identify the people and objects in the world around him by means of echoes(回声).
The device is an improvement of the “Sonicguide”, an instrument produced by Telesensory Systems, Inc., of Palo Alto, Calif, and used by blind adults in addition to a smart or guide dog. As adapted for Dennis, it consists of a battery-powered system about the size of a half dollar that is on a headgear. A transmitter sends out an ultrasonic(超声的) pulse that creates an 80 degree cone of sound at 6 feet. Echoes from objects within the cone are perceived (felt) as sounds that vary in pitch(音调) and volume(音量) with the size and distance of the object.
The closer an object is, the lower the pitch, and the larger the object, the louder the signal. Hard surfaces produce a sharp ping, while soft ones send back signals with a slightly fuzzy quality. An object slightly to the right of Denny’s sends back a louder sound to his right ear than to the left. Thus , by simply moving his head right and left and up and down, he can not only locate an object but also get some notion of its shape and size, thanks to the varying qualities of sounds reaching his ears as the cone of ultrasound(超声波) passes its edges. Dennis likes to use the device to play a kind of peek-a-boo with his mother. Standing on her knee and facing her directly, he receives a strong signal in both ears. By turning his head away, he makes her seem to disappear. “From the first time he wore it,” says Mrs. Daughters, “it was like a light going on in his head.”
What remains to be determined is how well the device will help Dennis cope with his surroundings as he begins to walk and venture further into his environment.
Meanwhile, Telesensory, Inc, is working on the development of sonar(声纳) device with somewhat the same sensitivity as Dennis’s for use by school-age children.
1.Dr. and Mrs. Daughters’ research is directed to ________.
A. helping the blind to see and learn as well as others
B. benefiting the learning process of blind children
C. solving blind children’s psychological problems
D. finding out how children develop intellectually
2.Infant Dennis becomes the subject of the experiment most probably because ________.
A. he already lags behind the sighted children
B. he leads a life as normal as any other children
C. he is at the early stage of the learning process
D. he has the aid of a sonar-type electronic device
3.What can we learn about infant Dennis’ device?
A. Its first design was designed for blind adults.
B. Its battery is as small as a half-dollar coin.
C. It is functionally similar to a sane and guide dog.
D. It has been improved by Telesensory Systems, Inc.
4.In the third paragraph, “its edges” refers to ___________ .
A. the edge of an object
B. the edge of the device
C. the boundary of Dennis’ movement
D. the boundary of the sound pitch.
Even when you’re extremely busy, you aren’t using your time with 100% efficiency. There are gaps in everyone’s schedule where they aren’t doing anything important. Even if your schedule has no gaps, there is probably lots of time when you aren’t working as fast or as effectively as you possibly could.
Why aren’t you completely efficient? It’s because time isn’t the limiting factor. If it were the limiting factor, people could work non-stop without breaks or any unproductive distractions (消遣). Instead, people, even those who are highly productive, need to take breaks, occasionally procrastinate (拖延) and slow down on tasks throughout the day.
The real and most important limiting factor for productivity is your energy levels to pay attention. Energy levels limit your productivity because when you’re tired, you can have enough time and still not get everything done. Your attention ability is also limited, because even if there are a million things that need to be done, you can only focus on one or two at a time.
You might not be able to insert another 4-5 hours into your schedule without making some sacrifices（牺牲）. But even extremely busy people can add an hour or two into their schedule without cancelling anything. The reason why it’s hard to “find time” isn’t a lack of time. It’s because you don’t have enough energy left to focus on something else that needs to fit into your day.
I first suspected time wasn’t the real problem during an extremely busy period in my life over a year ago. I was extremely busy, but at that time I still exercised regularly. I had daily to-do lists with over twenty items, and I still found time to exercise. However, after a few weeks off, because of illness, I stopped exercising. I was not busy by any standards, in fact, my schedule was very light. Despite this free time, I found it hard to find time to exercise. It seemed to get pushed later and later into my schedule until it was gone. How can I explain this strange experience? I believe you have known it.
1.If someone can’t work with 100% efficiency, the most important limiting factor is ________.
A. a schedule without gaps
B. breaks and distractions
C. the limited time
D. the limited energy
2.According to Paragraph 4, everyone, including the extremely busy people, can ________.
A. work without any rest
B. focus on many things at a time
C. find some more time in a day
D. do some exercise regularly
3.The writer gives the example of himself in the last paragraph in order to ________.
A. prove what the real limiting factor is
B. show us how busily he needs to work
C. explain how important a healthy body is
D. tell us what a strange experience he has
4.What is the best title of the passage?
A. Do You Really Lack Time?
B. How Can You Work Efficiently?
C. What Makes Your Energy Limited?
D. When Should You Do Exercise?
In the US, people prefer waiting for a table to sitting with people they don’t know. This means a hostess may not seat a small group until a small table is available, even if a large one is. If you are sitting at a table with people you don’t know, it is impolite to light up a cigarette without first asking if it will disturb them.
At American restaurants and coffee shops you are usually served tap (水龙头)water before you order. You may find the bread and butter is free, and if you order coffee, you may get a free refill(重续).
Most cities and towns have no rules about opening and closing time for stores or restaurants, though they usually do make rules for bars. Especially in large cities, stores may be open 24 hours a day.
Serving in restaurants is often large; too large for many people. If you can’t finish your meal but would like to enjoy the food later, ask your waitress or waiter for a “doggie bag”. It may have a picture of a dog on it, but everybody knows you’re taking the food for yourself.
Tips are not usually added to the check. They are not included in the price of the meal, either. A tip of about 15% is expected and you should leave it on the table when you leave. In some restaurants, a check is brought on a plate and you put your money there. Then the waiter or waitress brings you your change.
1.Which statement is TRUE?
A. American people like sitting with people they don’t know.
B. Hostess always seats a small group at a large table.
C. American people never sit with people they don’t know.
D. American people would not light a cigarette if the people who sit at the same table mind their smoking.
2.What is served before you order?
A. Cold water. B. Butter. C. Coffee. D. Bread.
3.What do American people always do when servings are too large for them?
A. They take the food home with a doggie bag for their dogs.
B. They leave the food on the table and go away.
C. They take the food home with a doggie bag and enjoy the food later.
D. They ask the waitress or waiter to keep the food for them.
假设你是李华。最近你班举行了一次班会，班会的主题是：是否有必要进行太空探险。请结合下表内容，给校报用英语写一篇文章，客观地介绍讨论的情况并表达你自己的观点。
一些同学赞同 | 一些同学反对 | 你自己的观点 |
●更好地了解太空 | ●耗资巨大 |
|
●从太空获得新资源 | ●宇航员的安全问题 | |
●扩大人类的生存空间 |
|
注意：1. 字数：100字左右
2. 标题与开头已写好，不计入总词数。
提示词：宇航员：astronauts 生存空间: living space
Outer Space Exploration, YES or NO?
The other day at a class meeting we had an argument over
1.______ ______ to ask your questions.
轮流问你们的问题。
2.I believe _______ taking exercise.
我认为锻炼对身体有好处。
3..Nowa
days, most of the young don’t _______ _______ Peking Opera.
现如今大多数的年轻人不喜欢京剧。
4.________ _______ duty, he chose to undertake.
面对责任，他选择承担。
5.The government has ________ ________ to bring down the prices of houses so that people can afford them.
政府已经努力降低房价让人们买得起房子。
6.As far as I can see, ______ ______ no possibility that he will win the tennis match this time.
在我看来，这次网球比赛他不可能赢。
7.I ______ ________ tell her the truth.
我不得不告诉她真相。
8.Cars were first used at the end of the nineteenth century, and were _____ ______ than a horse.
汽车在十九世纪末首次投入使用，并且和马一样跑得都不快。
9.Our new offices are still _________ ____________.
我们的新办公楼尚在修建中。
10.By the year 2000, housewives will probably have a robot ______ like a box with one large eye on the top.
到2000年，家庭主妇可能拥有机器人，它的形状像盒子，顶部有一只大眼。
Ancient China was a place1. _______ states were often 2. ______ war with each other. But it was also a time 3._______ there were many great philosophers. Confucius (55I BC --- 479BC ) is the philosopher4. ________ influence has been the greatest. He stressed the importance of kindness, duty and order in society. Chinese society was influenced by these ideas for more than 2000 years. Mencius was a thinker whose teachings were very similar to 5. ________ of Confucius.
What will the city of the future look 6. _______ ? No one knows7. ______ sure, and making predictions is a risky business. But one thing is certain ----- they are going to get bigger 8. _______ they get smaller. In the future, care for the environment will become very important 9.______ earth’s natural resources give out. We will use lots of recycled materials, such as plastic, aluminium, steel, glass, wood and paper, and we will waste fewer natural resources. We will also have to rely more 10.________ alternative energy, such as solar and wind power.
