题目
题型:不详难度:来源:
Right now, the American space suit weighs about 275 pounds and is big and massive. But the suit is also easy to work in for long periods of time. The Russian space suit is less complicated, but is used only a few times and then gets thrown away.
“Finding the right balance is always going to be a challenge,” said a long-time astronaut Jeff Williams. Williams has worn both types of suits. Space suits protect astronauts from both extreme heat and freezing temperatures. They carry life-packs with oxygen for the astronauts. They also shield astronauts from radiation, or particles that send out harmful rays.
Scientists are using computers to design the new suits. This allows them to change the design again and again, and to even test the design out before actually making anything. “There’s a lot more capable tools and technology to get the job done——a lot more knowledge, as well,” said Joe Kosmo. Kosmo helped design, develop, and test suits during the Mercury, Gemini, Apollo, Skylab, and shuttle periods.
These new space suits will be much lighter and use a new kind of complex material. They also will have a smaller life support backpack, thanks to tiny electronics. NASA hopes to have the first prototypes(原型) in development by 2010 and certify(证明) the suit by 2012. This will be in time for the launch of the Orion spaceship in 2014.
小题1: What characteristic does the new space suit have?
A.The new space suit will need much maintenance. |
B.The new space suit will be heavier than before. |
C.The new space suit will have less mobility than before. |
D.The new suit will use new technology to help astronauts be safe in outer space. |
A.The Russian space suit is big and massive. |
B.The Russian space suit is much complicated. |
C.The Russian space suit is merely used a few times. |
D.The Russian space suit is easy to work in for long periods of time. |
A.harm | B.protect | C.help | D.warn |
A.Because designing the new space suit is not a complex task. |
B.Because computers are being used to help scientists design the new space suits. |
C.Because it needs little knowledge to design the new space suits. |
D.Because the scientists only change the old space suits a little and make them into the new ones. |
A.Two years. | B.Three years. | C.Four years. | D.Six years. |
答案
解析
核心考点
试题【Before astronauts can go into space, they have to have the right suit. That’s wh】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Unplugged is being run by Dr Roman Gerodimos,a lecturer in Communication and Journalism at Bournemouth University.During the experiment,Dr Gerodimos said there were already signs of how much the exercise affected volunteers.He said:“They’re reporting withdrawal symptoms,overeating,feeling nervous,isolated and disconnected.”
During their 24-hour test,three of the experiment’s participants were followed around by a BBC reporter plus cameraman.They were asked to write down 100 lines about their day offline,but of course,they all waited until the next day when they had access to their laptops.
Elliot Day wrote:“Today,my whole morning routine was thrown up into the air.Despite being aware of the social importance of the media,I was surprised by how empty my life felt without the radio or newspapers.”
From Caroline Scott,we read:“I didn’t expect it,but being deprived of the media for 24 hours resulted in my day-to-day activities becoming so much harder to carry out than usual…I didn’t break out in a cold sweat like our lecturer expected us all to,but It’s not something l would like to do again!”
And Charlotte Gay wrote:“I have to say the most difficult item for me to be without has been my mobile;not only is it a social device,it’s my main access point of communication.”
Earlier in the year,a UK government study found that in the UK we spend about half our waking hours using the media,often plugged into several things at once.So,with technology continuing to develop at an alarming rate,how much time will you set aside for sleep in the future?
小题1:What can we learn about the volunteers?
A.Volunteers didn’t write down about their day offline. |
B.Volunteers weren’t allowed to use any media for 24 hours. |
C.Volunteers were followed around by Dr Roman Gerodimos. |
D.Only volunteers in the UK took part in Unplugged experiment. |
A.Anxious. | B.Lonely | C.Bored. | D.Despaired. |
A.The media ban affected his temperature. |
B.His work went on smoothly without the media. |
C.His work was carried on hard without the media. |
D.His life was empty without the radio or newspapers. |
A.People should use the media devices reasonably. |
B.People can easily survive the media devices addict. |
C.People can spend more time sleeping in the future. |
D.People spend about half the time using the media devices. |
A.newspaper ad | B.book review |
C.news report | D.science fiction story |
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked, canned or frozen. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
There are two problems, then, in feeding the large number of people on earth. The first thin g is to find some ways to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kind of food to make them grow to be strong and healthy.
小题1: According to the scientists, which of the following groups of food is the healthiest for your lunch?
A.chicken, apples, cereal, cabbages. | B.potatoes, carrots, rice, bread. |
C.oranges, bananas, fish, tomatoes. | D.beef, pork, fish, milk |
A.three times a day | B.dinner at twelve o’clock |
C.cooked food all the day | |
D.something from each of the seven kinds of food every day. |
A.have the right kinds of food to eat | B.cook their food in the same way |
C.have their meals at the same time | D.eat food in different ways. |
A.People in some places don’t have enough to eat. |
B.There are too many people in the world. |
C.One of the problems is that no one is hungry. |
D.The scientists are trying to make people e grow to be strong and healthy. |
A.When people eat their lunch. | B.What to do with the two problems. |
C.How to cook food in different ways. | D.Why people eat different kinds of food. |
Fast walking is good for the heart. It lowers the blood pressure. Researchers say walking can reduce the danger of suffering a heart attack by as much as fifty percent.
Studies have shown that walking for thirty minutes a day can delay and possibly prevent the development of Type Two Diabetes. It can prevent diabetes among people who are overweight and at danger for the disease.
Studies show that women who walk and take calcium reduce their danger of thinning of the bones. Walking also helps lower the pain of arthritis in areas where bones are joined by strengthening the muscles around the bones.
Walking several times a week is a good way to control your weight and even lose body fat. Studies show it also helps lower feelings of sadness.
Experts say walking is one of the safest ways to exercise. There is a low danger of injuries. So it is good for people who are starting an exercise program for the first time and for older people.
A walking program is easy to start. You should wear loose clothes and good shoes. Shoes designed for walking are best.
How fast should you walk? You should be breathing hard while you are walking. Yet, you should be able to
talk.
Let your arms move back and forward at your sides while you walk.
小题1:The title of the passage probably is ______.
A.Walking | B.Feelings of Sadness | C.Weight | D.Diseases |
A.walking is easy to start | B.there’s a low danger of injuries |
C.walking is good for heart | D.walking can prevent the development of diseases |
A.the danger of many diseases | B.weight | C.sad feelings | D.money for shoes |
A.is the safest way to all of the people | B.is a good way to reduce the danger of many diseases |
C.can cure the disease of heart attack | D.can help put on weight |
The Head Start program has used home visits for many years. Head Start teachers are required to make at least two home visits for each student, regardless of their ability, during each school year in addition to regular parent-teacher conferences at school. Many U.S. kindergartens also require home visits by teachers before school starts.
The visit approach varies from school to school and usually depends on the funding the source. In some schools, teachers prefer to visit in pairs. They feel more comfortable that way and sometimes need a translator in order to communicate with a child’s parents. Other teachers visit one-on-one with parents. Some interact with both the child and the parent. Many teachers may bring along learning activities for the child that also involve the parents participation. Normally, visits can last from 30 to 90 minutes, depending on the teacher and the activities.
When teachers get to know their students and their students’ families, the parents become more active in their children’s education. Home visits, not unnecessary as some people think, can give teachers the ideas they need to help all students succeed.
小题1: Home visits by teachers can
A.bridge cultural gaps existing between parents and teachers. |
B.get students know that their teachers care about their parents. |
C.get parents involved in their children’s education. |
D.help establish good relationships between parents and children. |
A.are not a new idea |
B.are traditionally done by teachers before school starts |
C.are meant for students with low marks |
D.have replaced parent-teacher meeting |
A.Reasons for home visists |
B.Forms of home visits |
C.Advantages of home visits |
D.Tips for home visits |
A.Parents have more opportunities to play with children |
B.Students can succeed more easily through their own efforts. |
C.Parents play a decisive role in children’s education. |
D.Teachers can learn more about how to help students. |
I had always traveled to Malaysia by plane or car, so this was the first time I was on a train. I did not particularly relish the long train journey and had brought along a dozen magazines to read and reread. I looked about the train. There was not one familiar face. I sighed and sat down to read my Economics.
It was not long before the train was across the Causeway and in Malaysia. Johore Baru was just another city like Singapore, so I was tired of looking at the crowds of people as they hurried past. As we went beyond the city, I watched the straight rows of rubber trees and miles and miles of green. Then the first village came into sight. Immediately I came alive; I decided to wave back.
From then on my journey became interesting. I threw my magazines into the waste basket and decided to join in Malaysian life. Then everything came alive. The mountains seemed to speak to me. Even the trees were smiling. I stared at everything as if I was looking at it for the first time.
The day passed fast and I even forgot to have my lunch until I felt hungry. I looked at my watch and was surprised that it was 3:00 pm. Soon the train pulled up at Butterworth. I looked at the people all around me. They all looked beautiful. When my uncle arrived with a smile, I threw my arms around him to give him a warm hug (拥抱). I had never done this before. He seemed surprised and then his weather-beaten face warmed up with a huge smile. We walked arm in arm to his car.
I looked forward to the return journey.
小题1: The author expected the train trip to be________ .
A.adventurous | B.pleasant | C.exciting | D.dull |
A.The friendly country people. | B.The mountains along the way. |
C.The crowds of people in the streets. | D.The simple lunch served on the train. |
A.choose | B.enjoy | C.prepare for | D.carry on |
A.Johore Baru | B.The Causeway. | C.Butterworth | D.Singapore |
A.Comfort in traveling by train. | B.Pleasure of living in the country. |
C.Reading gives people delight. | D.Smiles brighten people up. |
最新试题
- 1甲乙两物体做匀速直线运动,如果甲乙速度之比为4:3,通过的路程之比为5:2,则所用时间之比为( )A.10:3B.3:
- 2设常数,则a=( );(a+a2+…an)=( )
- 3根据句意和汉语注释,写出单词的正确形式。小题1:As we know, oil always __________ (漂
- 4修改下面病句(1)我们一定要发扬和继承神农炎帝坚忍不拔、开拓创新的精神。________________________
- 5材料一:材料二:与我国GDP逐年增长和居民储蓄存款增长相反的是,近几年,我国居民的消费率逐年降低,2008年中国居民消费
- 6Tom likes playing _____volleyball, and his sister likes play
- 7(附加题)抗旱植物体内的抗旱基因为R,其等位基因为r。研究表明,多数抗旱性农作物能通过细胞代谢,产生一种代谢产物,调节根
- 8已知函数.(Ⅰ)求曲线在点处的切线方程;(Ⅱ)求函数在区间上的最大值和最小值.
- 9设正项数列{an}的前n项和为Sn,满足Sn=n2.(1)求{an}的通项公式;(2)设bn=1(an+1)(an+1+
- 10读下面一段文字,修改①②③处的病句。(3分)翻开我们的《初三·五班志》,你可以看到,①“中考”是最高频率出现的一个词,而
热门考点
- 1的值是( )A.B.C.D.
- 2固定和利用CO2能有效地利用资源,并减少空气中的温室气体。CO2与化合物Ⅰ反应生成化合物Ⅱ,与化合物Ⅲ反应生成化合物Ⅳ,
- 3计算:(1﹣2)0﹣2﹣1+|﹣3|=( )。
- 4读下面的“亚洲地区图”,回答问题。(1)亚洲地域广大,东西经度的跨度达________以上,时差可达_________小
- 5发动陈桥兵变“黄袍加身”的皇帝是[ ]A.杨坚B.李世民C.赵匡胤D.朱棣
- 6阅读材料,回答下列问题。(9分)材料一 2010年2月12日当地时间(当地区时)晚上6时第21届冬奥会在加拿大西部城市
- 7下图是苏联画家弗·赛罗夫于1921年创作的油画《列宁会见上访农民》。它描绘的是十月革命后,列宁在一间简朴的办公室里接见从
- 8Mother sent me some money _____ her letter. [ ]A. get a
- 9菱形的对角线交点为O,以O为圆心,O到菱形一边的距离为半径的圆与另三边的位置关系是______.
- 102009年11月17日,***胡锦涛会见了美国总统奥巴马。胡锦涛说,当前国际形势发生复杂深刻变化,全球性的挑战不断增多