网址:http://m.1010jiajiao.com/timu3_id_2956640[举报]
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
With fifteen years Britain and other nations should be well on with the building of big industrial plants for the recycling of waste. The word rubbish could lose its meaning because everything which goes into the dustbin would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy of nothing else.
The latest project is to take a city of around half a million citizens and discover exactly what raw (未经加工的) materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well.
Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be treated like this: First, it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements (元素) from the heavy solids; after that rollers will break up everything that can be broken. Finally, the rubbish will pass under magnets (磁铁), which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the final step.
The first full-scale (全方位的) big recycling plants are perhaps fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dustbins, some big cities will be forced to build their own recycling plants before long.
The underlined phrase “be well on with…” most probably means __ .
A. have completed what was started B. get ready to start
C. have achieved a great deal in D. put an end to
What is NOT mentioned as a part of the recycling process (过程) described in
Paragraph 3?
A. Breaking up whatever is breakable.
B. Sharpening metal bars.
C. Separating light elements from the heavy ones.
D. Sorting out small pieces of metal.
What’s the main reason for big cities to build their own recycling plants?
A. To deal with wastes more economically.
B. To protect the environment from pollution.
C. To get raw materials locally.
D. To get advantage from those plants.
The passage is mainly about .
A. a cheap way to get energy B. the position of recycling plants
C. new ways of recycling wastes D. the probability of city environment
查看习题详情和答案>>阅读下面短文,从短文后各题所给的四个选项(A,B,C,D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
For centuries, magicians have used various ways to shock the audience. We all have seen how a 36 performer carefully steps 37 a bed of burning coals -- barefoot. Then he walks across 38 a single burn on his feet. Is it mind over matter, or is it just physics? As it turns __39 , walking on burning coals isn’t that hot as 40 . “The coals are hot enough to 41__ you, but if you walk quickly across them you 42 being burned.” says Jonathan Hall, a physician at Penn State University in Eric Pennsylvania.
That’s because some coals are made 43 burning wood chips. Wood has two 44__ properties(特性)for fire-walking, explains Hall. First, wood is an insulator(绝缘体)--it doesn’t __45 heat very well. “It 46 _ time for heat to travel 47 the wood to your feet.” Hall says. If the performer walked across red-hot metal 48 , that would truly be 49 , because metal conducts, or transmits, heat very well. The metal would 50 burn a performer’s feet.
Second, wood has a low specific heat-- it doesn’t take much heat to 51 its temperature. Heat is a form of 52 . Temperature is a 53 of heat, in units of degrees. So 54 the coals are hot, the value(数值)of heat energy they contain is low. Thus, a well-trained performer can 55 such an amazing result.
Still, you don’t want to walk on burning coals, do you?
1.A. daring B. dare C. rough D. fearful
2.A. at B. over C. on D. above
3.A. with B. within C. without D. over
4.A. out B. on C. off D. in
5.A. imagine B. imagined C. imagining D. to imagine
6.A. fire B. burn C. light D. flame
7.A. prevent B. keep C. ignore D. avoid
8.A. off B. from C. of D. in
9.A. ideal B. classic C. favorite D. standard
10.A. transmit B. communicate C. bring D. send
11.A. gathers B. takes C. gains D. stands
12.A. through B. into C. over D. pass
13.A. unhappy B. unharmed C. unhealthy D. unprepared
14.A. charming B. magical C. tricky D. fashionable
15.A. instantly B. constantly C. frequently D. lately
16.A. produce B. raise C. construct D. create
17.A. power B. source C. energy D. strength
18.A. measure B. rank C. estimate D. rate
19.A. what if B. however C. as if D. even though
20.A. achieve B. arrive C. draw D. take
查看习题详情和答案>>
In 1977, a dead author of detective stories saved the life of a 19-month-old baby in a most unusual way. The author was Agatha Christie, one of the most successful writers of detective stories in the world.
In June 1977, a baby girl became seriously ill in Qatar, near Saudi Arabia. Doctors were unable to _31_the cause of her illness, so she _32_ to London and admitted to Hammersmith Hospital, where specialist help was _33 _. She was then only half-conscious(半昏迷) and on the “Dangerously Ill” list. A team of doctors hurried to _34_the baby only to discover that they, 35_, were puzzled by the very unusual symptoms. While they were discussing the baby’s case, a nurse asked to __36 to them.
“Excuse me,” said nurse Marsha Maitland, “_37_ I think the baby is __38_ from thallium poisoning.”
“_39 _ makes you think that?” Dr. Brown asked. “Thallium poisoning is extremely _40_.”
“A few days ago, I was reading a novel called A Pale Horse __41__ Agatha Christie,” Nurse Maitland explained. “In the book, somebody uses thallium poison, and _42_ the symptoms are _43_. They are exactly the same as the baby’s.”
“You’re very observant and you may be right,” another doctor said. “We’ll _44_some tests and find out _45_ it’s thallium or not.”
The _46_ showed that the baby had 47_ been poisoned by thallium, a rare metal used in making optical(光学的) glass. _48_ they knew the cause of illness, the doctors were able to give the correct treatment. The baby soon _49_ and was sent back to Qatar. Inquiries(调查)showed that the poison __50_ from an insecticide(杀虫剂)used in Qatar.
A. describe B. diagnose C. discover D. discuss
A. flew B. sent C. went D. was flown
A. inexpensive B. important C. available D. impossible
A. examine B. see C. look after D. cure
A. too B. either C. often D. never
A. refer B. turn C. speak D. belong
A. and B. so C. as D. but
A. coming B. suffering C. tired D. dying
A. Who B. How C. What D. Which
A. rare B. serious C. clear D. dangerous
A. in B. on C. by D. about
A. all B. some of C. one of D. both
A. drawn B. broadcast C. announced D. described
A. make up B. carry out C. get through D. deal with
A. that B. how C. what D. whether
A. words B. tests C. examination D. book
A. indeed B. actually C. probably D. never
A. As long as B. As for as C. Once D. If
A. died B. got injured C. recovered D. got ill
A. must come B.should come C.might have come D.can’t have come
查看习题详情和答案>>
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||