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2014年英语四级考试每日一练(8月19日)

导读:
在线测试本批《每日一练》试题,可查看答案及解析,并保留做题记录 >> 在线做题
  • 第1页:练习试题
单项选择题
听录音,回答题:

1、A.He hasn't eaten well recently.
B.He's been helping his sister a lot.
C.He can't stop searching for work yet.
D.He's been working on his paper constantly.

2、根据以下资料,回答题:
        Drink from plastic bottles can raise the body's levels of a controversial "gender-bending" chemical by more than two thirds, according to tests.
        Experts have been concerned about the possible health effects of bisphenolA (BPA.--an everyday chemical used in many plastic food and drink containers and tins as well as clear baby bottles--which is officially classified as toxic in some countries.A study found that participants who drank for a week from polycarbonate (聚碳酸酯) bottles showed a 69 percent increase in their urine (尿液) of BPA.
        Researchers did not say how much liquid was drunk per day.Researchers from Harvard School ofPublic Health studied 77 students, who had first undergone a seven-day "washout" phase in which theydrank all cold beverages (饮料) from stainless steel bottles in order to minimise BPA exposure.
        They were then given two polycarbonate bottles and asked to drink all cold beverages from themduring the next week.Previous studies have suggested that high levels of BPA consumption are linked tobirth defects, growth problems and an increased risk of heart disease.In particular there are fears thatheating the bottles, as parents would do when warming their baby's milk, causes the chemical to leak inpotentially dangerous quantities into the liquid contained within.
        "If you heat those bottles, as is the case with baby bottles, we would expect the levels to beconsiderably higher.This would be of concern since infants may be particularly susceptible to BPA'shormone gland-disrupting (扰乱腺体极速分泌) potential." said the senior author of the latest study, Karin B.Michels.
        Most adults carry BPA in their bodies but expert opinion on the risks is divided.The European Food Safety Authority believes that people naturally convert the chemical into less harmful substances in the body.
        Previous studies had found that BPA could leach (渗出 ) from polycarbonate bottles into theircontents, but this study is the first to show the size of the corresponding increase in urinary BPAconcentrations in humans.
        Harvard researcher Jenny Carwile said, "While previous studies have demonstrated that BPA is linkedto adverse health effects, this study fills in a missing piece of the puzzle--whether or not polycarbonateplastic bottles are an important contributor to the amount of BPA in the body."

What do we know about bisphenol A (BPA.from the beginning of the passage?
A.It is certain substance taken in by human beings every day.
B.It is a component contained in a number of plastic products.
C.It is an element that plays a decisive role in people's gender.
D.It is a kind of chemical that is universally regarded poisonous.


3、Questions are based on the following passage.
  As you are probably aware,the latest job markets news isn’t good:Unemployment is still more than 9 percent,and new job growth has fallen close to zer0.That’s bad for the economy,of course.And it may be especially discouraging if you happen to be looking for a job or hoping to change careers right now.But it actually shouldn’t matter to you nearly as much as you think.
  That’s because job growth numbers don’t matter to job hunters as much as job turnover data.After all,existing jobs open up every day due to promotions,resignations,terminations,and retirements.(Yes,people are retiring even in this economy.)In both good times and bad,turnover creates more openings than economic growth does.Even in June of 2007,when the economy was still humming along,job growth was only l32,000,while turnover was 4.7 million!
  And as it turns out,even today-with job growth near zero-over 4 million job hunters are being hired every month.
  I don’t mean to imply that overall job growth doesn’t have an impact on one’s ability to land a job.
  It’s true that if total employment were higher,it would mean more jobs for all of us to choose from(and compete for).And it's true that there are currently more people applying for each available job opening,regardless of whether it’s a new one or not.
  But what often distinguishes those who land jobs from those who don’t is their ability to stay motivated.They’re willing to do the hard work of identifying their valuable skills;be creative about where and how to look;learn how to present themselves to potential employers;and keep going,even after repeated rejections,The Bureau of Labor Statistics data shows that 2.7 million people who wanted and were available for work hadn’t looked within the last four weeks and were no longer even classified as unemployed.
  So don’t let the headlines fool you into giving up.Four million people get hired every month in the U.S.You can be one of them.
The author tends to believe that high unemployment rate_____________.
A.deprives many people of job opportunities
B.prevents many people from changing careers
C.should not stop people from looking for a job
D.does not mean the U.S.economy is worsening


填空题
4、The old couple hoped that their son_________(将不辜负他们的期望)。

5、Unit 1
Directions: In this passage there are ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
Questions 11 to 20 are based on the following passage.
    Looking back on years of living in a working-class home in the North of England, I should say that a good living room must 11 three principal things: homeliness, warmth and plenty of good food. The living-room is the warm heart of the family and _12__often slightly stuffy to a middle-class visitor. It is not a social centre but a family center; little entertaining goes on there or in the front room, if there 13 to be one; you do not entertain in anything approaching the middle-class 14  The wife's social life outside her 15 family is found over the washing-line, at the little shop on the corner, visiting relatives at a moderate 16 occasionally, and perhaps now and again a visit with her husband to his pub or club. Apart from these two places, he has just his work and his football matches. They will have, each of them, friends at all these places, who may well not know what the inside of their house is like, having never "stepped across the threshold," as the old 17 phrase has it. The family hearth is      18      for the family itself, and those who are "something to us"(another favorite formula) and who look in for a talk or just to sit. Much of the free time of a man and his wife will  19  be passed at that hearth. Just staying in is still one of the most common leisure-time   20   

A.  happens

B.

professions

C.

sense

D.

nevertheless

E. fashioned

F.

distance

G.

immediate

H.

usually

I.  occupations

J.

preserved

K.

imitate

L.

provide

M. therefore

N

reserved

0.

contribute



简答题
6、
Animals on the Move
A) It looked like a scene from “Jaws” but without the dramatic music. A huge shark was slowly swimming through the water, its tail swinging back and forth like the pendulum of a clock. Suddenly sensitive nerve ending in the shark’s skin picked up vibrations of a struggling fish. The shark was immediately transformed into a deadly, efficient machine of death. With muscles taut, the shark knifed through the water at a rapid speed. In a flash the shark caught its victim, a large fish, in its powerful jaws. Then, jerking its head back and forth, the shark tore huge chunks of flesh from its victim and swallowed them. Soon the action was over.
Moving to Survive
B) In pursuing its prey, the shark demonstrated in a dramatic way the important role of movement, or locomotion, in animals. Like the shark, most animals use movement to find food. They also use locomotion to escape enemies, find a mate, and explore new territories. The methods of locomotion include crawling, hopping, slithering, flying, swimming, or walking. Humans have the added advantage of using their various inventions to move about in just about any kind of environment. Automobiles, rockets, and submarines transport humans from deep oceans to as far away as the moon. However, for other animals movement came about naturally through millions of years of evolution. One of the most successful examples of animal locomotion is that of the shark. Its ability to quickly zero in on its prey has always impressed scientists. But it took a detailed study by Duke University marine biologists S. A. Wainwright, F. Vosburgh, and J. H. Hebrank to find out how the sharks did it. In their study the scientists observed sharks swimming in a tank at Marine land in Saint Augustine, Fla. Movies were taken of the sharks’ movements and analyzed. Studies were also made of shark skin and muscle.
Skin Is the Key
C) The biologists discovered that the skin of the shark is the key to the animal’s high efficiency in swimming through the water. The skin contains many fibers that crisscross like the inside of a belted radial tire. The fibers are called collagen fibers. These fibers can either store or release large amounts of energy depending on whether the fibers are relaxed or taut. When the fibers are stretched, energy is stored in them the way energy is stored in the string of a bow when pulled tight. When the energy is released, the fibers become relaxed.
D) The Duke University biologists have found that the greatest stretching occurs where the shark bends its body while swimming. During the body’s back and forth motion, fibers along the outside part of the bending body stretch greatly. Much potential energy is stored in the fibers. This energy is released when the shark’s body snaps back the other way.
As energy is alternately stored and released on both sides of the animal’s body, the tail whips strongly back and forth. This whip-like action propels the animal through the water like a living bullet.
Source of Energy
E) What causes the fibers to store so much energy? In finding the answer the Duke University scientists learned that the shark’s similarity to a belted radial tire doesn’t stop with the skin. Just as a radial tire is inflated by pressure, so, too, is the area just under the shark’s collagen “radials”. Instead of air pressure, however, the pressure in the shark may be due to the force of the blood pressing on the collagen fibers.
F) When the shark swims slowly, the pressure on the fibers is relatively low. The fibers are more relaxed, and the shark is able to bend its body at sharp angles. The animal swims this way when looking around for food or just swimming. However, when the shark detects an important food source, some fantastic involuntary changes take place. The pressure inside the animal may increase by 10 times. This pressure change greatly stretches the fibers, enabling much energy to be stored. This energy is then transferred to the tail, and the shark is off. The rest of the story is predictable.
Dolphin Has Speed Record
G) Another fast marine animal is the dolphin. This seagoing mammal has been clocked at speeds of 32 kilometers (20 miles) an hour. Biologists studying the dolphin have discovered that, like the shark, the animal’s efficient locomotion can be traced to its skin. A dolphin’s skin is made up in such a way that it offers very little resistance to the water flowing over it. Normally when a fish or other object moves slowly through the water, the water flows smoothly past the body. This smooth flow is known as laminar flow. However, at faster speeds the water becomes more turbulent along the moving fish. This turbulence muses friction and slows the fish down.
H) In a dolphin the skin is so flexible that it bends and yields to the waviness of the water. The waves, in effect, become tucked into the skin’s folds. This allows the rest of the water to move smoothly by in a laminar flow. Where other animals would be slowed by turbulent water at rapid speeds, the dolphin can race through the water at record breaking speeds.
Other Animals Less Efficient
I) Not all animals move as efficiently as sharks and dolphins. Perhaps the greatest loser in locomotion efficiency is the slug. The slug, which looks like a snail without a shell, lays down a slimy trail over which it crawls. It uses so much energy producing the slimy mucus and crawling over it that a mouse traveling the same distance uses only one twelfth as much energy. Scientists say that because of the slug’s inefficient use of energy, its lifestyle must be restricted. That is, the animals are forced to confine themselves to small areas for obtaining food and finding proper living conditions. Have humans ever been faced with this kind of problem?
According to the passage, a shark can use movement to find food, to avoid being chased by its enemies, and to find a new place to live.


7、        “你要茶还是要咖啡?”是用餐人常被问到的问题。许多西方人会选咖啡,而中国人则会选茶。相传,中国的一位尊王于五千多年前发现了茶,并用来治病。在明清(the Ming and Qing Dynasties)期间,茶馆遍布全国。饮茶在六世纪传到日本,但直到十七、十八世纪才传到欧美。如今,茶是世界上流行的饮料(bevemge)之一。茶是中国的民族饮品,也是中国传统和文化的重要组成部分。

8、1.很多大学生在业余时间开网店赚钱
2.有人支持,有人反对
3.我的看法
On Students Running Online Shops
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________


9、1.近年来,“微博”越来越流行,许多人利用“微博”来表达心声、交流想法、传递信息:
2.“微博”流行的原因;
3.目前“微博”中可能存在的问题。

10、翻译一
Part IV Translation
Directions : For this part,you are allowed 30 minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet 2
许多人喜欢中餐。在中国,烹饪不仅被视为一种技能,而且也被视为一种艺术。精心准备的中餐既可口又好看。烹饪技艺和配料在中国各地差别很大。但好的烹饪都有一个共同点,总是要考虑到颜色、味道、口感和营养(nutrition)。由于食物对健康至关重要,好的厨师总是努力在谷物、肉类和蔬菜之间取得平衡,所以中餐既味美又健康。
注意:此部分试题请在答题卡2上作答。
翻译二
Part IV Translation
Directions : For this part,you are allowed 30 minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet 2
"你要茶还是咖啡?"是用餐人常被问到的问题,许多西方人会选咖啡,而中国人则会选茶,相传,中国的一位帝王于五千年前发现了茶,并用来治病,在明清(the qing dynasties)期间,茶馆遍布全国,饮茶在六世纪传到日本,但直到18世纪才传到欧美,如今,茶是世界上流行的饮料(beverage)之一,茶是中国的瑰宝。也是中国传统和文化的重要组成部分。 
翻译三
Part IV Translation
Directions : For this part,you are allowed 30 minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet 2
信息技术(Information Technology),正在飞速的发展,中国公民也越来越重视信息技术,有些学校甚至将信息技术作为必修课程,对这一现象大家持不同观点。一部分人认为这是没有必要的,学生就应该学习传统的课程。另一部分人认为这是应该的,中国就应该与时俱进。不管怎样,信息技术引起广大人民的重视是一件好事。
翻译四
Part IV Translation
Directions : For this part,you are allowed 30 minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet 2 中国结初是由手工艺人发明的,经过数百年不断的改进,已经成为一种优雅多彩的艺 术和工艺。在古代,人们用它来记录事件,但现在主要是用于装饰的目的。“结”在中文里意味这爱情丶婚姻和团聚,中国结常常作为礼物交换或作用饰品祈求好运 和辟邪。这种形式的手工艺代代相传,现在已经在中国和世界各地越来越受欢迎。

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