Ask someone what they have done to help the environment recently and they will
almost certainly mention recycling.Recycling in the home is very important of course.
However,being forced to recycle often means we already have more material than we
need.We are dealing with the results of that over-consumption in the greenest way
possible,but it would be far better if we did not need to bring so much material home
in the first place.
The total amount of packaging increased by 12% between 1999 and 2005.It now
makes up a third of a typical household"s waste in the UK.In many supermarkets
nowadays food items are packaged twice with plastic and cardboard.
Too much packaging is doing serious damage to the environment.The UK,for example,
is running out of it for carrying this unnecessary waste.If such packaging is burnt,it gives off
greenhouse gases which go on to cause the greenhouse effect.Recycling helps,but the process
itself uses energy.The solution is not to produce such items in the first place.Food waste is
a serious problem,too.Too many supermarkets encourage customers to buy more than they
need.However,a few of them are coming round to the idea that this cannot continue,encouraging
customers to reuse their plastic bags,for example.
But this is not just about supermarkets.It is about all of us.We have learned to associate
packaging with quality.We have learned to think that something unpackaged is of poor quality.
This is especially true of food.But it also applies to a wide range of consumer products,which
often have far more packaging than necessary.
There are signs of hope.As more of us recycle,we are beginning to realise just how much
unnecessary material we are collecting.We need to face the wastefulness of our consumer culture,
but we have a mountain to climb.
B.Recycling too many wastes.
C.Making more products than necessary.
D.Having more material than is needed.
B.the increase of packaging recycling
C.the rapid growth of supermarkets
D.the fact of packaging overuse
B.means burning packaging for energy
C.is the solution to gas shortage
D.leads to a waste of land
B.Supermarkets care more about packaging.
C.It is improper to judge quality by packaging.
D.Other products are better packaged than food
B.Needless material is mostly recycled.
C.People like collecting recyclable waste.
D.The author is proud of their consumer culture.
energy.It works your muscles and makes your heart work hard so as to send blood to your
muscles.So,exercise makes your heart and muscles strong.Exercise also makes you feel
refreshed.If you exercise a couple of times a week,you will stay happy and healthy.
Some Western countries,such as the United States,have problems with exercise.In the US,
many people don"t have enough exercise because it is hard for them.People have to work
from dawn till dusk,so they don"t have time to take exercise.They work in office buildings
sitting in chairs all day long in front of computers.They cannot get much exercise sitting at desk
passively.
Some Westerners can get exercise walking from their homes to work.However,the majority
of people cannot do this.It is too far from their homes to their offices.They have no choice but
to drive to work.In fact,some have to drive one or two hours to their offices.This is unfavourable
in two ways.First,these people don"t have a chance to exercise because they are sitting in
their cars for two to four hours each day.Second,driving is challenging especially in rush hours
and calls for too much attention.It makes a person worn out.So,when these people arrive home
at night,they don"t have the desire to take exercise after work.
Today,many people in the West are overweight,which causes health problems for them.
Doctors say exercise can help people both lose weight and improve their health.So many
people are trying to get more exercise.But it takes time to change,and when people don"t
see a difference right away,they will lose heart and stop exercising.
only make guesses, of course, but we can be sure that he will be different from what he is
today, for man is slowly changing all the time.
Let us take an obvious example. Man, even five hundred years ago, was shorter than he
is today. Now, on average, men are about three inches taller. Five hundred years is relatively
a short period of time, so we may suppose that man will continue to grow taller. Again, in the
modern world we use our brains a great deal. Even so, we still make use of only about 20%
of the brain"s capacity(容量). As time goes on, however, we shall have to use our brains more
and more, and finally we shall need our brains more and more, and finally we shall need larger
ones! This is likely to bring a physical change too: the head, in particular the forehead, will grow
larger.
Nowadays our eyes are in constant use. In fact, we use them so much that very often they
become weaker and we have to wear glasses. But over long period of time it is likely that man"s
eyes will grow stronger.
On the other hand, we tend to make less use of our arms and legs. These, as a result, are
likely to grow weaker. At the same time, however, our fingers will grow more sensitive because
they are used a great deal in modern life.
But what about hair? This will probably disappear from the body altogether in course of time
because it does not serve a useful purpose any longer. In the future, then, both sexes are likely
to be bald.
Perhaps all this gives the impression that future man will not be a very attractive creature to look
at! This may well be true. All the same, in spite of all these changes, future man will still have a lot
in common with us. He will still be a human being, with thoughts and motions similar to our own.
B. Future man will look quite different from us
C. Man is growing taller and uglier as time passes
D. Man"s organs" functions will change
B. Man"s hair is getting thinner and thinner.
C. Man"s arms and legs have become lighter and weaker.
D. Man has been growing taller over the past 500 years.
B. his brain has grown larger over the past centuries
C. he will use his brain more and more as time goes on
D. the other 80% of his brain will grow in due time
B. He has smaller eyes and wears better glasses.
C. His fingers grow weaker because he doesn"t have to make use of them.
D. He thinks and feels in a different way.
B. body organs will become poorer if they are not used often
C. human beings hope for a change in the future life
D. future life is always predictable
don"t eat it? If you have to make a decision of this type, most people (especially very busy
people) will choose to skip breakfast.
However, many experts in the field of health consider breakfast ( the meal which "break"
you "fast" ) to be the most important t meal of the day. If we eat a good breakfast, they say,
we will have the energy and nutrients (营养) we need to begin our working day with vigor(活力)
and stay hopeful with good honor. However, many people skip breakfast or substitute a cup
of coffee for a well balanced meal. What happens if we ignore the importance of breakfast?
One recent study conducted in the United States tested a large number of people. Participants
included both males and females who ranged in age from 12 to 83. The results showed that if a
person eats an adequate breakfast, he or she will work more efficiently and more productively
than if he or she skips breakfast or eats a very poor breakfast. This fact appears to be especially
true if a person"s work involves mental(脑力的) activities. The study showed that if school-children
eat fruit, eggs, bread and milk before going to school, they will learn more quickly and will be able
to concentrate (集中)on their lessons for a longer period of time than if their breakfast is inadequate.
The study also showed that contrary to what people believe, if you skip breakfast, you will not
lose weight. This is because people become so hungry if they skip breakfast that they eat too much
for lunch and end up gaining weight instead of losing. So remember, if you want to lose weight,
skipping breakfast will not help you. You will likely lose more weight if you decrease your other
meals.
B. you"ll lose weight quickly if you skip breakfast
C. breakfast provides what a person needs to work
D. after a long night, you"ll feel very hungry
means _______.
B. To drink a cup of coffee instead of a well balanced meal.
C. To change a cup of coffee into a well balanced meal.
D. To regard a cup of coffee as a well balanced meal.
B.a proper breakfast will make mental workers more efficient
C.fruit, eggs, bread and milk are the best breakfast for mental workers
D.school-children who have breakfast are much brighter than those who don"t
B.Most people who skip breakfast actually eat more for lunch.
C.People put on weight because they eat too much breakfast.
D.Skipping breakfast won"t help people who want to lose weight.
B. What"s a Healthy Diet
C. Surprising Results of a Study
D. Breakfast - A Meal That Breaks You Fast
People often fall ill because of me__1__,they can hardly blame me;it is largely their own__2__.
A tired person may get__3__specially when he goes to crowded places with polluted air.A
sudden change in__4__is another factor.In hot summer,people turn on the air-conditioner upon
returning home.They will catch a cold easily.
My latest victim is an energetic student.After school,he played football hard for two hours.
Though__5__,he still went to the cinema.Then he got back home and took a cold shower
immediately.
I seized this golden chance to__6__him.He reacted,trying to__7__me,but I was already__8__
deep in his throat.He kept sneezing(打喷嚏)and his nose was running,__9__he put on some
warm clothes,it didn"t work,for there were too many of us.Besides,his sore throat kept__10__
him,and he developed a cough to force me and my family out,but__11__.
The next day he couldn"t go to__12__.He had lost his appetite and was not as__13__as
before.His mother made him orange juice every few hours for more vitamin C,which would help
his__14__.
For two days he was__15__y his mother.As he rested more,his defense strengthened and I
began to feel the__16__.I knew I had to__17__him before long.But I am not the one who gives
up easily,and I made everyeffort to fight back.__18__,it was my turn to feel__19__now,for his
defense system was starting an all out attack against me.I became__20__and finally my time
was over.
Do you know what I am?
( )2.A.business
( )3.A.punished
( )4.A.temperature
( )5.A.excited
( )6.A.injure
( )7.Aetonwith
( )8.Aeproducing
( )9.Aeminding
( )10.Aeminding
( )11.Ascaped
( )12A.bed
( )13A.peaceful
( )14.recovery
( )15A.protected
( )16.A.loss
( )17.A.leave
( )18.Uncertainly
( )19.Aainful
( )20.Aigger
B.responsibility
B.blamed
B.season
B.hurt
B.bother
B.getridof
B.waiting
B.Once
B.upsetting
B.succeeded
B.work
B.afraid
B.development
B.nursed
B.operation
B.catch
B.Unsuccessfully
B.disappointed
B.weaker
C.excuse
C.caught
C.place
C.late
C.attack
C.putupwith
C.hiding
C.Whether
C.comforting
C.regretted
C.school
C.active
C.study
C.scolded
C.pressure
C.forget
C.Unusually
C.nervous
C.smaller
D.fault
D.killed
D.condition
D.tired
D.destroy
D.takeholdof
D.disappearing
D.Although
D.influencing
D.failed
D.hospital
D.happy
D.growth
D.affected
D.movement
D.beat
D.Unfortunately
D.ashamed
D.stronger
brain lives for only three to five minutes. More often the doctors can"t fix the damage. Sometimes
they are afraid to try something to help because it is dangerous to work on the brain. The doctors
might make the person worse if he operates on the brain.
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks
doctors should make the brain very cold. If it is very cold, the brain can live without blood for
30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he
operated on them. He made the monkeys" blood go through a machine. The machine cooled
the blood. Then the machine sent the blood back to the monkeys" brains. When the brain"s
temperature was 10°C, Dr. White stopped the blood to the brain. After 30 minutes he turned
the blood back on. He warmed the blood again. After their operations the monkeys were like
they had been before. They were healthy and busy. Each one could still do the jobs the doctor
had taught them.
B. the patients are often too nervous
C. the damage is extremely hard to fix
D. the blood-cooling machine might break down
B. trying the operation on monkeys first
C. having the blood go through a machine
D. lowering the brain"s temperature
B. can keep the brain"s blood warm
C. can keep the patient"s brain healthy
D. can help monkeys do different jobs
a. send the cooled blood back to the brain
b. stop the blood to the brain
c. have the blood cooled down
d. operate on the brain
B. c, a, b, d
C. c, b, d, a
D. b, c, d,
- 1例2、(1)已知f(x+1x)=x3+1x3,求f(x).(2)已知f(2x+1)=lgx,求f(x).(3)已知f(x
- 2动物适应环境的生活方式多种多样,以下不是动物适应森林生活方式的是( )A.肉食动物往往采用伏击的方式进行捕食B.大多数
- 3读下图回答问题。(1)A、B两地降水少的是 地,降水多的是 地。(2)构成气候
- 4选择适当的选项补全对话,有两项为多余选项。A: 1_______B: I"d like a pizza, please.
- 5将全体正整数排成一个三角形数阵:12 34 5 67 8 9 1011 12 13 14 15……根据以
- 6人的眼睛是一架神奇的照相机,正常的眼睛观察范围是10cm至极远处.正常的人观看远处的物体时,眼睛的晶状体自动调节焦距变大
- 7若最简二次根式a-12a+5与54a-3b 是同类二次根式,则ab=______.
- 8学习了各类生物的生殖后,你认为下列说法不正确的是 [ ]A.植物的组织培养属于无性生殖 B.昆虫、鸟的生殖属于有
- 9如果把每千克白菜涨价0.3元记为+0.3元,那么每千克白菜降价0.2元应记为( )A.-0.3元B.+0.3元C.-0
- 10 I have got a car, I don’t get as much exercise as I used
- 1(20分)消费与人类生活密切相关,体现着社会的发展与进步,折射出时代的特征。阅读下列材料,回答问题。材料一 审度量,节衣
- 2伏尔泰在孔子石像下写下了“他是唯一有益理智的表现者,从未使世界迷惑,而是照亮了方向,他仅以圣贤而从未以先知的口吻讲话,但
- 3(32分)阅读下列材料,完成下列各题:材料一:新华社北京8月8日电 根据中共中央、国务院的统一部署,为支持甘肃省舟曲县开
- 4(14分)工业制硝酸的主要反应是4NH3(g)+5O2(g) 4NO(g)+6H2O(g)ΔH=-akJ/mol(a﹥
- 5 分类法在化学学科的发展中起到重要作用。下列分类标准合理的是A.根据分散系的稳定性大小将其分为溶液、胶体和浊液B.根据反
- 6动物为保证食物等生存资源而占据的空间叫领域。如图表示各种鸟类的领域面积与体重、食性的关系,据图分析正确的是[ ]
- 7日本“3.11”地震一周年之际,首相野田佳彦承诺克服地震、海啸及核辐射事故三重灾难带来的挑战,建设“新日本”。一年前,日
- 8天宫一号于北京时间2011年9月29日21时16分在甘肃酒泉卫星发射中心发射。按照计划,神舟系列飞船将在两年内依次与天宫
- 9More than two decades ago, a 10-year-old schoolgirl threw a
- 10— ______ is it from our school to the Bell Tower? — About ha