题目
题型:不详难度:来源:
What makes us ill? It is germs(细菌). Germs are everywhere. They are very small and you can’t find them with your eyes, but you can see them with a microscope(显微镜). They are very very small and there could be hundreds of them on a very small thing.
Germs are always found in dirty water. When we look at dirty water under the microscope, we shall see them in it. So your father and mother will not let you drink dirty water.
Germs can be found not only in water but also in air and dust(灰尘). If you cut your finger, if some of the dust from the floor goes into the cut(割开处), some of the germs would go into your finger. Your finger would become big and red, and you will have much pain in it. Sometimes the germs would go into all of your body, and you would have pain everywhere.
小题1:Which of the following is true?
A.If things are very very small, they are germs. |
B.If things can’t be seen, they must be germs. |
C.Germs are only in dirty water. |
D.Germs are everywhere around us. |
A.You haven’t looked at it carefully. |
B.Water can’t be drunk in this way. |
C.There must be lots of germs in it. |
D.Water will make you ill. |
A.Germs may make us ill. |
B.Germs are in dirty water. |
C.Don’t drink dirty water. |
D.Take care of your fingers. |
答案
小题1:D
小题2:C
小题3:A
解析
试题分析:这篇短文中作者主要描述了我们致病的原因,并分析了细菌在我们周围无处不在,很容易对我们造成伤害。
小题1:根据It is germs(细菌). Germs are everywhere.描述可知选D,细菌在我们周围。
小题2:根据Germs are always found in dirty water. ……So your father and mother will not let you drink dirty water.描述可知选C。
小题3:这篇短文主要描述了我们生病的原因,那就是细菌让我们生病。故选A。
点评:本文浅显易懂,层次分明,学生很容易把握文中中心内容。答题中注意带着问题阅读短文,一般就能顺利找出答题依据。对于不能直接找到根据的问题注意联系上下文,根据短文中心总结出正确答案。
核心考点
试题【Have you ever been ill? When you are ill, you must be unhappy because your body 】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Now American researchers think they are close to developing a pill(药丸), which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce(减少), or possibly erase(抹去) the effect of sad memories.
In November, some scientists tested a drug(药) on people in the US and France. The drug stops the body producing chemicals(化学品) that fix memories in the brain. So far the research has suggested that only the mental effects of memories may be reduced, not that the memories are erased.
The research has caused plenty of argument. Some think it is a bad idea, while others support it.
Supporters say it could lead to pills that prevent or treat soldiers’ troubling memories after war. They say that there are many people who suffer from terrible memories.
“Some memories can destroy(破坏) people’s lives. They come back to you when you don’t want to have them in a dream. They usually come with very sad feeling.” said Roger Pitman, a scientist of psychiatry at Harvard Medical School. “This could relieve(减轻) a lot of that suffering.”
But those who are against the research say that it is very dangerous to change memories because memories give us our identity(特质). They also help us all get away from the mistakes of the past.
“All of us can think of bad events in our lives that were terrible at the time but make us who we are. I’m not sure we want to erase those memories,” said Rebecca Dresser.
小题1:The passage is mainly about __________.
A.a new medical invention |
B.a new research on memories |
C.a way of erasing sad memories |
D.an argument about the research on the pill |
A.cause the brain to fix memories |
B.stop people remembering their experiences |
C.prevent body producing certain chemicals |
D.erase the emotional effects of memories |
A.good stories | B.sad feelings |
C.experiences | D.memories |
A.Some memories can destroy people’s lives. |
B.People want to get away from bad memories. |
C.Experiencing bad events makes us different from others. |
D.The pill will reduce people’s sufferings from bad memories. |
When parents are going through difficulties in their own relationship, the child sometimes develops guilt.The child can hold himself or herself responsible for the breakdown in relationship between the parents.This needs to be explained to the child, who won’t speak out this guilt.
The teenage years are emotionally sensitive years to the outside world.For the first time the child realizes his or her position in society.Friends suddenly become more important than parents.It is during this time that the relationship between children and parents is tested.If the bond with parents is strong, the child will not be influenced by the drug and alcohol culture.If the bond is weaker, the child will end up with problems.
During such times, one of the effective ways to deal with the problems is to discuss the problem with the child.As parents, you will need to discuss the results of each choice and then leave the final decision to the child.Forcing parental will on children is counterproductive (适得其反的), especially at this age.Forcing parental will at this time will stop communicating and then you will not know what is happening in their life.Whatever the problem is, the child need never be made to feel lonely.The moment that happens, the possibility of serious self-harm is raised.
Any problem at this age can be dealt with by a flexible (灵活的) way by parents.Discuss things calmly.Leave the decision to the individual.Make yourself available for any help or support that the child hopes.The child will feel comfortable when allowed the freedom of choice.
小题1:If parents have trouble with their relationship, the child __________ .
A.will communicate with their parents |
B.will be responsible for the trouble |
C.will feel guilty about the trouble |
D.will help the parents recover |
A.The sense of responsibility. |
B.A weak bond with parents. |
C.Feeling depressed or stressed |
D.The child’s confidence. |
A.Letting the children be. |
B.Discussing it with the children. |
C.Forcing parental will on them |
D.Meeting their demands. |
A.Weakening. | B.Pressing. |
C.Understanding. | D.Losing. |
A.The bond between parents and children. |
B.Causes of teenagers’ problems. |
C.Teenagers’ problems and solutions. |
D.Always letting the children decide. |
Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either siblings or strangers.
When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response(反应)suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough.
When jewelweed seedlings(幼苗)were planted with siblings, they grew a few more branches than they usually would if they were alone – but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete.
According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach – where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots.
Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water – so when they’re threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves.
小题1: What does the underlined word siblings mean?
A.Flowers come from foreign countries. |
B.Plants growing in different environments. |
C.Flowers planted with lots of strangers. |
D.Plants that are the same kind. |
A.make a comparison | B.introduce a topic |
C.describe a pretty flower | D.build a new theory |
A.grow more leaves than those planted in groups |
B.become taller than those with more branches |
C.grow fewer leaves than those planted with strangers |
D.become ill easily because they can’t get enough shade |
A.New Discoveries about Plants |
B.How Plants Compete with Each Other |
C.Family Recognition among Plants |
D.Jewelweeds and the Great Lakes Sea Rockets |
Do you want to keep your brain active and your memory strong? Here are some useful ways:
Choose the Brain Food
A proper diet will help keep your mind running strong all day long. Make sure to include plenty of fruits and green vegetables. Some of the best foods include: blueberries, blackberries, fish and fish oil, eggs, strawberries and so on.
Exercise
Get your body moving and your memory will soon follow. Exercise improves the heart’s blood flow. This, in turn, helps the brain function better and stay sharper.
Pick up a Book
The key to keeping your memory quick is to continue to challenge it. Try to always have a book in hand. After you’ve done reading a section or two, question and review the material you’ve read. Try to imagine what you’re reading. Discuss what you’ve read, and talk about it with friends or join a book club.
Develop Interest
We remember new things because we enjoy them. Find ways to make a boring subject fun by connecting it to something you already know. You can use your imagination and create a fun story behind a subject to help make it easier to remember.
Repeat after Me
When learning new information, the more you repeat it, the more likely you will be able to remember that information. Practice is the key to lasting memory.
Share with Others
Don’t keep your knowledge stored up. Teaching others is another great way to improve memory skills. Don’t be afraid of taking on new challenges. After learning something, it’s necessary to put the new information to use.
小题1: What will help keep the mind running strong?
小题2: What’s the key to keeping your memory quick?
小题3: Why do you remember new things?
小题4: How many useful ways are mentioned in the passage?
小题5: What does the writer tell us in the passage?
Do you feel a little sleepy after lunch? Well, that’s normal. Your body naturally slows down then. What should you do about it? Don’t reach for a coffee! Instead, take a nap.
It’s good to have a daily nap. First of all , you are more efficient(有效的) after napping. You remember things better and make fewer mistakes. Also, you can learn things more easily after taking a nap. A nap may increase your self-confidence and make you more active. It may even cheer you up. But, there are some simple rules you should follow about taking a nap. First, take a nap in the middle of day, about eight hours after you wake up. Next, a 20-minute nap is best. If you sleep longer, you may fall into a deep sleep. After waking from a deep sleep, you will feel worse. Also, you should set an alarm clock. That way, you can fully relax during your nap. You won’t have to keep looking at the clock, so you don’t oversleep.
Now, the next time you feel sleepy after lunch, don’t get stressed. Put your head down, close your eyes, and catch forty winks.
小题1: After taking a nap, you may feel more .
A.tired | B.confident |
C.sleepy | D.excited |
A.the shorter the better |
B.as long as you like |
C.the longer the better |
D.about twenty minutes |
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