The backpack’s electricity-creating powers depend onsprings used to hang a cloth pack from its metal frame.The frame sits againstthe wearer’s back,and the whole pack moves up and down as the person walks.Agear mechanism converts vertical movements of the pack to rotary motions of anelectrical generator,producing up to 7.4 watts.
Unexpectedly,tests showedthat wearers of the new backpack alter their gaits in response to the pack’soscillations,so that they carry loads more comfortably and with less effortthan they do ordinary backpacks. Because of that surprising advantage,Rome plans to commercialize both electric and non-electric versionsof the backpack.
The backpack could be especially useful forsoldiers,scientists,mountaineers,and emergency workers who typically carryheavy backpacks. For the rest of us,power-generating backpacks could make itpossible to walk, play video games,watch TV, and listen to music,all at the sametime. Electricity-generating packs aren’t on the market yet, but if you do get one eventually,just make sure to look both ways before crossing thestreet!
1. Backpacks are convenient because
A they can be verylarge.
B they can hold as many things as you want to carry.
C your handsare freed to do other things.
D you do not have to carry things withyou.
2. What is the most important feature of the backpack invented byLawrence C.Rome
and his colleagues?
A It produces electricity forelectronic devices while the wearer walks.
B It can be used as cellphones，GPS in the military actions or field studies.
C It is small andconvenient.
D It is light and easy to carry.
3. The word "springs" in Paragraph 3 means
A a small stream of water flowing naturally from theearth.
B the season of the year，occurring between winter and summer.
C the act or an instance of jumping or leaping.
D a length of metal woundaround，which returns to its original shape after
being pushed.
4. According to Paragraph 4，what does Rome plan to do?
A To make the backpackmore comfortable for the wearer.
B To put the backpack on the market.
C To test the advantage of the backpack.
D To promote the backpack in anewspaper or on television.
5. What is implied in “if you do get oneeventually，just make sure to took both
ways before crossing the street!”?
A You will be too excited to watch the traffic.
B Enjoyingelectronic devices while walking may invite traffic accidents.
C It is notpossible for you to get such a backpack.
D It is wise of you to have such abackpack.
第二篇
Saving Money
Where you save your money often depends on what you are saving for. If you are saving to buy a CD (光盘) or to go to a concert, then probably you would keep your money somewhere in your room.
If you are saving for a big purchase like a mountain bike or a school trip, where would you save your money?
One place to save money is the bank. Putting your money in a savings account will help your money earn more money. If you put your money in a piggy bank (猪形储蓄罐), one year later you'll still have the same amount of money you put in. If you put your money in a savings account, one year later, you'll have more money than you put in. Why?
When you keep your money in a bank, your money earns interest. Interest is an amount of money a bank pays you to use your money. The bank uses your money (and the money of other people, too) to loan money to people and businesses. www.kuaixue5.com
The bank will send you a statement several times a year. A Dank statement tells you how much money you have in your account. It also tells you how much interest you have earned. If you leave your money in the bank, you can watch it grow!
Another way you can save money is to buy a certificate of deposit or CD. If you have some money that you don't need to use for a long time, this is a good way to make your money grow.
You can buy a CD at a bank. You agree not to use the money for a certain period of time. That period might be from six months to five years. You can't touch your money during that time. If you do, you must pay a penalty, or fee.
6 Your money will earn more money if you put it
A in your room.
B in a piggybank.
C in your pocket.
D in a savings account.
7 A bank pays you interest for
A wasting your money.
B losing your money.
C using your money.
D decreasing your money.
8 Among other things, a bank statement tells you
A the amount of money you have in the bank
- 2017职称英语考试模拟训练：理工类Ｃ考试试题及答案
- › 2017年计算机二级考试C语言填空模拟试题四
- › 2017年计算机二级考试C语言填空模拟试题三
- › 2017年计算机二级考试C语言填空模拟试题二
- › 2017年计算机二级考试C语言填空模拟试题一
- › 2017年全国计算机二级考试C语言模拟试题一
- › 2017计算机二级考试C语言考前密卷十
- › 2017计算机二级考试C语言考前密卷九
- › 2017计算机二级考试C语言考前密卷八
- › 2017计算机二级考试C语言考前密卷七
- › 2017计算机二级考试C语言考前密卷六
- › 2017计算机二级考试C语言考前密卷五
- › 2017计算机二级考试C语言考前密卷四
- 在百度中搜索相关文章：2017职称英语考试模拟训练：理工类Ｃ考试试题及答案
- 在谷歌中搜索相关文章：2017职称英语考试模拟训练：理工类Ｃ考试试题及答案
- 在soso中搜索相关文章：2017职称英语考试模拟训练：理工类Ｃ考试试题及答案
- 在搜狗中搜索相关文章：2017职称英语考试模拟训练：理工类Ｃ考试试题及答案