题目
题型：0103 期中题难度：来源：
know how their hearts beat. They want to know why the ocean water tastes salty.
As children grow up, they become curious about different kinds of things. When they are babies, they
are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the
physical world around them: the plants, the animals, the sky. Later, they become interested in the things that
people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this
curiosity leads to a career (生涯、职业) in science.
Scientists spend their lives trying to find out about the world. Those who work with the earth sciences
study the earth, the oceans, and the sky. Other scientists who study living things work with the biological
sciences. A third group of scientists study the physical sciences, e.g. physics, chemistry.
These scientists have already discovered a lot about our world. For example, they tell us why your heart
beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-
five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries
oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries
to them. The muscles need oxygen, too. So your brain sends a signal to the heart. The signal means that the
muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles.
It may beat 90 to 140 times a minute.
Of course, scientists cannot answer all of our questions. If we ask, "Why does the ocean water taste
salty" scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks.
Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt
into the ocean. But then we ask, "What happens to the salt in the ocean? The ocean does not get saltier every
year." Scientists are not sure about the answer to this question.
We know a lot about our world, but there are still many answers that we do not have, and we are curious.
B. People in different countries are interested in different things.
C. Men and women are curious about different things.
D. People of different ages are interested in different things
B. man-made things
C. plants and animals
D. ocean water
B. more signals
C. more salt
D. water
B. they know nothing about the world
C. they know little about the world
D. they want to be scientists
答案
核心考点
试题【阅读理解。 It is natural that children are curious (好奇的) about the world around t】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
from work. Tea breaks are more like a custom that takes place regularly several times a day. This tea break
tradition has been happening during the past 200 years or so. Tea just happens to be a wonderful drink for
most of us. The day simply feels incomplete without a hot cup of tea. However, is tea good for you?
In 2006, the papers were flooded with the news of research showing that drinking 2-3 cups of tea a day
is as beneficial as drinking water, with even some additional health benefits. Another report published in
November 2009, stated that drinking up to eight cups of tea a day is good for you. The research conducted
by nutrition expert Dr. Carrie Ruxton, debunked (揭示…的真相) the popular stories about caffeinated (含咖
啡因的) drinks like tea, coffee and cocoa. According to Dr. Ruxton, the caffeine present in tea tends to lower
the risk of heart attacks and strokes. She says that drinking 8 cups of tea a day gives the drinkers "the best
levels of health-giving substances" present in tea and other caffeinated drinks.
Contrary to popular belief that tea does not contain more caffeine than coffee, it actually contains almost
half the amount. Caffeine is a natural thing found in many types of food and drink. It"s also something that
can give you a much needed lift for a demanding and tiring afternoon ahead. Research shows that proper
amounts of caffeine are safe for most people.
So why not take full advantage of your tea breaks at work, or make time for afternoon tea while out
shopping at the weekend? And remember that tea is not just a great drink, but it helps to keep you looking and
feeling healthy.
B. The tea custom.
C. How to drink tea.
D. When to drink tea.
B. new ways of drinking tea appear
C. drinking tea is harmful to health
D. people don"t like to drink tea any more
B. gives you a good rest
C. may cause heart attacks
D. is more than that in coffee
B. Tea-a healthy drink
C. Tea, coffee and cocoa
D. Drink tea or coffee
can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight.
Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to
live. This is why we find that there are so many plants around us. If you look carefully at the plants around
you, you will find that there are two kinds of plants: flowering plants and non-flowering plants. Flowering
plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed, some have two,
three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without
seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores (胚芽).
Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores
are quite the same as seeds. When these spores are all on wet and shady places, they usually grow into new
plants.
[ ]
B. plants cannot grow without air
C. there are many plants in the world
D. we can not live without water
[ ]
B. water, sunlight and air
C. air, water and soil
D. air, sun and light
[ ]
B. Spores are seeds
C. All fruits of flowering plants have seeds
D. Without plants, man will die out
[ ]
B. a novel
C. a science magazine
D. an experiment report
What is the secret of writing a good letter? Here are two main points. Don"t try to be fancy (花哨).
Don"t try to impress your reader. You will be successful if you follow these seven Cs.
Clear. Use short, direct sentences. 1_____ Long and difficult sentences won"t help express yourself
clearly. Write the letter as if the reader were right there with you. Above all, don"t use an introduction.
Correct. 2_____. Don"t guess, even for spelling. Refer to your dictionary. If you need to, check a
reference (参考) book too. Use them as much as you need to.
Complete. Don"t scatter (分散) your points. 3_____. This is good organization too.
Courteous. Be polite and friendly rather than overly casual. Give your information nicely even if you
are complaining about something. In all letters, treat others as you want them to treat you.
Concise. Make each point as clearly and briefly as you can.
Conversational. This informal style of conversation is really the secret of good writing. 4_____. Such
a letter has a natural, friendly tone (语气). Let your personality come through naturally.
Considerate. 5_____ Write about what the reader needs or wants to know. Try to be helpful. This will
build good feeling to you.
The seven Cs are about writing letters. But how about school papers? Use the seven Cs too. Write as
if you were talking to your teacher or professor. You"ll be surprised. You"ll almost immediately become a
good writer. And you might even enjoy writing from now on.
B. Think of the reader"s point of view.
C. Make them easy to understand.
D. Include long sentences in your letter.
E. Make sure what you say is correct.
F. Writing shouldn"t be taken too seriously.
G. Finish one point completely before going on to the next.
totally new environment. In fact, it isn"t that bad.
High school is a lot like middle school after a while. The first day of course is always scary, and the first
day of middle school must have been the same. Of course, the first few days you might get lost while looking
for your classes but after a while, what seemed to be a large school really isn"t.
One thing that"s really cool about high school is that there are so many more classes you can take. If you
happen to like art, there are many art classes. In addition, there are other classes that weren"t available in middle
school like photography or psychology.
In high school, there are a lot of things that are similar to how middle school was but at the same time,
there are other opportunities available as well. There are more clubs, sports, and other activities you can join
in.
You"re able to join in these activities and make new friends with kids with the same interest as you. These
activities also give you a chance to learn something you never had the opportunity to learn before.
High school has something for everyone. You just have to decide what to take part in. but there"s one thing
that"s certain that you"re going to have just as much fun in high school as you did in middle school. And if
middle school wasn"t that great for you, high school is a chance to make up for it.
High school isn"t just about having fun though. You have to be responsible while you"re growing up.
Teachers aren"t going to chase (催促) you up to do your homework.
B. how to take art classes
C. the fun side of high school life
D. how to make new friends in high school
B. is full of fun without any worries
C. is the same as middle school life
D. is as much fun as middle school life
B. taking photography classes
C. getting lost while looking for classes
D. ignoring your homework until your teacher reminds you
B. a book review
C. an advice column for students
D. a film poster
have instincts. They"re born with natural abilities to do certain things. Wild animals also learn by copying
their parents and practicing. And pets learn through training.
But instincts and training aren"t the only keys to animals" behavior. Scientists say animals" thoughts and
feelings also influence their actions. Animals often make choices, plans, and sensible changes. They can
help others and solve problems. Some even make and use tools!
If animals could talk, what would they say about their thoughts and feelings? A gorilla (大猩猩) born
in captivity (关在笼子里) has helped answer that question. Koko, a gorilla, was taught to use sign language
(手势语). She has learned hundreds of words!
Koko once had a pet cat she named All Ball. "Koko love Ball," she signed. "Soft good cat." One time,
she blamed the cat for biting her by signing "You bad dirty toilet!" When her pet died, Koko cried. "Sad for
sleeping cat," she signed.
Koko calls herself "fine animal gorilla". She uses sign language to argue, joke, and ask and answer
questions.
"Most animals can"t use words to tell us their thoughts," says Dr. Jonathan Balcombe. "But Koko shows
us that animals have their own ideas and feelings." Dr. Balcombe is a scientist at the Humane Society of the
United States. He says there"s even more to discover about animals through field studies. In field studies,
people watch animals in their natural environment.
"Scientists who study animals" natural behaviors learn how animals live and think," Balcombe says. "That
knowledge can help others respect every animal who shares the planet with us."
B. animals learn by practicing
C. animals are born with
D. animals learn through training
B. an animal can learn to speak through training
C. an animal has the natural ability to speak
D. an animal can speak its mind
B. teach animals to use words
C. train animals to use tools
D. train animals to be cleverer
B. Understanding animals
C. Training animals to speak
D. Protecting animals from danger
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