题目
题型:北京市期末题难度:来源:
or fight back. Plants certainly cannot run away, and they have no teeth and claws. But plants can defend (保护)
themselves by using both physical and chemical ways.
Some plants have their own ways to keep animals away. For example, the leaves of the holly (冬青) plant
have sharp prickles (刺) that stop grass-eating animals. Holly leaves on lower places have more prickles than
leaves on upper places. This is because the lower leaves are easier for most animals to reach.
Some plants, such as the oak tree (橡树), have thick and hard leaves that are difficult for animals to eat.
Some grasses may contain a sandy material, eating such grasses wears down the animal"s teeth.
Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an
unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals.
When a worm (虫子) bites a tobacco leaf (烟叶), the leaf produces a chemical smell.
Many plants depend on both physical and chemical defenses. A certain plant in China, for instance, has
prickly leaves, and each prickle has poisonous water (毒液). Only one experience with this kind of plant will
teach an animals to stay away from it is the future.
1. Can plants move from place to place?
____________________________________________________________
2. Can plants defend themselves by physical ways or by chemical ways?
____________________________________________________________
3. Why lower holly leaves have more prickles than upper ones?
____________________________________________________________
4. How does tobacco defend itself against an attack from a worm?
____________________________________________________________
5. What kind of experience will teach an animal to stay away from a plant in the future?
____________________________________________________________
答案
2. Both physical and chemical ways. / Both.
3. Because the lower leaves are easier for most animals to reach.
4. The leaf produces a chemical smell.
5. Eating prickly leaves which have poisonous water.
答案不唯一
核心考点
试题【阅读短文,根据其内容回答问题。 Animals can move from place to place, but plants cannot. 】;主要考察你对教育文化类等知识点的理解。[详细]
举一反三
that they become ill, because they are afraid of failing; they are afraid of letting their parents and families down.
If exams are really making you ill or worried, don"t hide your feelings. Talk to someone about it. If one person
doesn"t help you, ask someone else.
How to get through exams? Here are some top tips by educational psychologists (教育心理学家):
Ask a teacher or tutor about how to revise, and exam skills-how to work when you are in an exam.
Take short rests during your time of work and revision. If your mind is tired, it will not remember well.
Plan your work: revise at times when you know you will work at your best.
Get enough sleep, and eat healthy food.
If you feel ill, talk to someone about your worries. But don"t be too relaxed! Some stress over exams makes you work hard for them.
If it upsets (沮丧) you to talk to your friends about an exam when it is finished, don"t do it! In fact, don"t
even think about the exam you have finished. What is done is done. You cannot change what you have written!
To this advice, we would add:
If you are studying in the evening, don"t go straight to bed afterwards. Your mind will still be "going round
and round"-thinking too much. Do something else, maybe walk or get exercise. Choose something that will relax
you, and make you think of other things.
understand what people are saying, how can you talk with them? It may be difficult, but learning by
listening is necessary. It can be done.
As we know, different people have different pronunciations of the same word. Standard (标准)
pronunciation is important for English speaking as well as for listening. In China, people from one area
may not understand what people from another area are saying because of the different Chinese dialects
(方言). Standard Chinese pronunciation can help people from different places understand each other easily.
It is the same with English. If your pronunciation is not standard, it is as hard for other people to
understand you as it is for you to understand them.
If you want to learn how to listen to English, the following ways are helpful.
Get some good books with tapes. Do the exercises, from the simple to the difficult, step by step.
You can also watch English-language films, listen to English-language radio and TV programmes.
Try to listen every day, even if only for a few minutes. At first you may understand few words.
Don"t give up. Just listen.
Remember to red and speak English every day. It will help you a lot. Every day, spend an hour
reading English. Finally you will notice that you"re making progress.
Talk to English-speaking people as often as possible. They will speak more slowly with you, use
simple words and use body language to help you understand them. Don"t be afraid to talk to them. They
won"t mind because they may have more trouble to make themselves understood in Chinese.
1. Is it possible for people to learn English by listening?
________________________________________________
2. What do you have to do when you talk with English-speaking people?
________________________________________________
3. Why is standard English very important?
________________________________________________
4. How many ways does the writer talk about to practise listening?
________________________________________________
5. When do you feel easier to understand English-speaking people?
________________________________________________
but they are related to real experiences and needs in the dreamer"s life. They seem real while they are taking
place. Some dreams are pleasant, others are sad, and still others are frightening.
In most dreams, the dreamer cannot control what happens to him. The story may be confusing, and
things happen that would not happen in real life. People see in most dreams, and they may also hear, smell,
touch, and taste in their dreams.
Dreams are a product of the sleeper"s mind. They include events and feelings that he has experienced.
Most dreams are related to events of the day before the dream and strong wishes of the dreamer. Deep
wishes or fears-especially those held since childhood-often appear in dream. Events in the sleeper"s
surrounding-a loud noise, for example, may become part of a dream, but they do not cause dreams.
Everyone dreams, but some persons never recall dreaming. Others remember only a little about a dream
they had just before awakening and nothing about earlier dreams. No one recalls all his dreams.
B. how we dream during sleep
C. what dreams are
D. what dreams bring to people
called carbon dioxide (CO2) from the air. Plants use sunlight to turn water and CO2 into glucose. Glucose is a
kind of sugar. Plants are glucose as food for energy to grow. The way plants turn water and CO2 into glucose
is called photosynthesis. That means "putting together with light". A chemical called chlorophyll helps make
photosynthesis happen. Chlorophyll is green. It gives plants their green colour.
As summer ends and autumn comes, the days get shorter and shorter. This is how the trees "know" to
begin getting ready for winter.
During winter, there is now enough light or water for photosynthesis. The trees will rest, and live on the
food they have stored during the summer. They begin to close their food-making factories. The green
chlorophyll disappears from the leaves. Then, we begin to see yellow and orange colours. A few of these colors
stay in the leaves all the time. We just can"t see them in the summer, because they are covered up by the green
chlorophyll.
Red and purple colors we see in leaves are made mostly in the autumn. In some trees, like maples (枫树),
glucose is stored in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this
glucose into red. The brown color of trees like oaks (橡树) is made from wastes left in the leaves.
B. 氧气
C. 胡萝卜素
D. 蛋白质
Imagine taking a lovely puppy into your family. You love and train it through its first year, knowing
that at the end of the year, you"ll have to give it up. That"s just what puppy raisers do. Puppy raisers raise
guide dogs for blind and very weak people.
When a potential guide dog puppy is about eight weeks old, it goes to live with a family, sleeping inside
the house as a member of the family. It"s fine if the family has lots of children or other pets, since a guide
dog needs to learn how to behave no matter who or what else is around.
The puppy raiser"s duty is not to turn the puppy into a guide dog, but to make the dog a well-behaved
family member. That means someone must spend special time with the puppy, playing with it and training it.
Guide dogs take blind people into a complex world. There are many interesting things that could keep
the dog from working. The puppy raiser helps the puppy become socialized, or well-behaved in groups, by
giving it the chances to experience lots of new environments and praising it when it stays quiet. Visits to the
park, shopping centre, and bus stop are all very helpful field trips for the puppy. Since guide dogs may have
to travel in cars, buses, planes and boats, puppy raisers try to give their puppies useful experiences of this
nature too. Many puppy raisers even take their puppies to work with them.
Although the puppy raiser is not responsible for training the puppy to be a guide dog, the puppy can
be taught orders which can be easily understood. Everyday training classes teach the dog such easy orders
as "Sit," "Down," and "Stay." The one order the puppy is not taught is "Heel," because a guide dog stands in
front of the trainer, not at the trainer"s side.
Dogs love to eat, but it is important for future guide dogs to learn to eat only from their own bowls.
They can be easily attracted by smells of food and something they can see while they are working, so there
can be no asking for food at the table and no things from strangers.
When the dog is between a year and eighteen months old, the puppy raiser"s job is over. The dog is
now ready to do its real work. The family members have given their time and care to the dog. When their
work is done, they always feel sad to give up the dog they have loved so much.
They can do it only because they know someone else needs the dog more than they do.
1. puppy 小狗 2. raiser 饲养者 3. potential 有潜力的
4. behave 行为举止 5. complex 复杂的 6. socialized 合群的
7. praise 表扬 8. responsible 负责的
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