Inrecentyearsadvancesinmedical-优题课

Some years ago, I went to Australia for a meeting with my friend, Chris. We decided to drive across country to Brisbane to visit another friend after the meeting ended.
The first day we were excited and laughed at each other’s jokes. By the third day of driving in the endless desert, we began to get bored. We had been quiet for a few hours when suddenly Chris saw some kangaroos. We were both excited and decided to get a closer look. Chris accelerated to catch up with the kangaroos. We got closer and closer, and Chris was doing 110 kilometers per hour. We were very close to the kangaroos—too close—when we heard a loud BANG!
Chris stopped the car and we got out. Behind the car was a large kangaroo lying still on the ground. Chris went over to the kangaroo and put his baseball cap on its head. He took off his sunglasses and put them on the kangaroo and did the same with his jacket. Then he put his arm around the kangaroo and told me to take a photo of them together. I was still in shock, but I took out my camera. While I was taking the photo, I saw the kangaroo move. It suddenly woke up, looked at Chris, and jumped away into the distance before we could do anything.
I started laughing but Chris looked very serious. He said his purse and passport(护照) were in the jacket. I started laughing even harder. I stopped laughing, however, when he said our car keys were also in the jacket.
Why did the writer and Chris go to Brisbane?

A．To have a trip.	B．To have a meeting.
C．To see kangaroos.	D．To visit their friend.

What does the underlined word “accelerated” in the second paragraph probably mean?

A．Climbed slowly.	B．Walked slowly.
C．Drove faster.	D．Ran faster.

What can you most probably conclude(推断) from the last sentence of the passage?

A．The kangaroo drove their car away.

B．They had to walk in the endless desert.

C．Chris had another key to the car.

D．The writer should buy a new jacket for Chris.

Can you swim? Swimming is one of the most popular activities in summer. It can be learned early in life. Little children can learn to swim as soon as they walk. In fact, you need the same skills in walking as in swimming. However, I believe that five is the best age to learn it. By five or six, a child knows fear of water, a very important thing to know. It’s wise to be afraid. The young understand that the water can sometimes be very dangerous.
When you swim, you should follow certain rules：
★ Never swim alone! No matter how good you are in the water, don’t risk drowning by swimming alone. If you swim by yourself, you may get into trouble.
★ Don’t go beyond your abilities. Most swimmers know it clearly not to swim too far from the bank or the beach.
★ Don’t show off your skills by doing dangerous tricks.
★ Don't smoke. Swimming depends on a healthy body.
★ Work at any activity that builds muscles (肌肉).
Little children can learn to swim as soon as _________ .

A．they can talk

B．they start walking

C．they have no fear of the water

D．they are five or six years old

The writer believes it’s very __________for a child to know the fear of water.

A．important

B．useful

C．dangerous

D．bad

According to the passage, you should not swim alone because ____.

A．the water is too cold

B．your parents would not be happy

C．something in the water might attack

D．you might drown

It was a village in India. The people were poor. However, they were not unhappy. After all, their forefathers (祖先) had lived in the same way for centuries.
Then one day, some visitors from the city arrived. They told the villagers there were some people elsewhere who liked to eat frogs’ legs. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.
This seemed like money for nothing. There were millions of frogs in the fields around, and they were no use to the villagers. All they had to do was to catch them. Agreement was reached, and the children were sent to the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. For the first time, the people were able to dream of a better future. But the dream didn’t last long.
The change was hardly noticed at first, but it seemed as if (好像) the crops(庄稼) were not doing so well. More worrying was that the children fell ill more often, and there seemed to be more insects around lately.
The villagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money they’d just had to buy pesticides (杀虫剂) and medicine. Soon there was no money left.
Then the people realized that what was happening. It was the frogs. They hadn’t been useless. They had been doing an important job—eating insects. Now with so many frogs killed, soon there were more and more insects. They were doing harm to both crops and people.
Now, the people are still poor. But in the evening they sit in the village square and listen to sounds of insects and frogs. These sounds of night now have a much deeper meaning.
Why did the villagers agree to sell frogs?

A．They needed money to buy medicine.

B．They wanted to please the visitors.

C．The frogs were easy money.

D．The frogs made too much noise.

What might be the cause of the children’s sickness?

A．The crops didn’t do well.

B．There were too many insects.

C．The visitors brought in disease.

D．The pesticides were overused.

What can we learn from the last sentence of the passage?

A．Good old days will never be forgotten.

B．Health is more important than money.

C．The harmony between man and nature is important.

D．Happiness comes from peaceful life in the country.

You will have a lot of reading to do in this grade this year. You can do more of it in less time if you learn to read rapidly. Perhaps you have been told about some habits which keep a person from reading fast and have been strongly asked to break those which you might have.
Do you still have any of these bad habits? Check yourself by answering “yes” or “no” to these questions.
（1）Do you move your lips(嘴唇) when reading silently?
（2）Do you point to words with your finger as you read?
（3）Do you move your head from side to side as you read?
（4）Do you read one word at a time?
If you answer “yes” to any of these questions, start at once to break the habit.If you move your lips, hold your fingers over them,or hold a piece of paper between your lips while you are reading. Then if your lips move, you will know it and can stop them.
If you point to words, hold the two sides of your book, one side with your left hand, the other side with your right hand. Then you won’t have a free finger to use in pointing while reading. If you move your head, place your chin(下巴)in one hand and hold your head still(静止不动的).
If you read no more than one or two three words at a time, you need to work very hard in learning to take in more words at each glance(一瞥) as your eyes travel across the lines of words.
Even if you do rather fast now, you can learn to read even faster.As you probably have been
told, the fast reading is to take in whole groups of words as each glance. Read in thought groups and force(强迫)your eyes along the lines of words as fast as you can make them go. Anyone who practices doing these things will be able to read faster
You may hold your fingers over your lips while reading so as（为了 ____.

A．to tell others to be silent

B．to feel whether your lips move or not

C．to hold a piece of paper between them

D．to keep yourself from talking to others

When you read, ________________ .

A．don’t keep your head still

B．don’t hold your books with your hands

C．don’t stand up near a desk

D．don’t use your finger to point to words

If you learn to read fast, __________________.

A．you can read more in less time

B．you can write faster

C．you can understand better

D．you can read less in more time

You must _____ those habits that we are talking about in this reading.

A．remember

B．have

C．get rid of(消除)

D．keep

The best title for this passage is ____________.

A．How to read rapidly

B．What to read

C．Reading rules

D．Ways to read less in more time

Teeth are important. Strong , healthy teeth help you chew(咀嚼) foods that help you grow. They help you speak clearly. And yes ,they help you look best. Here are some tips for you to take care of you teeth:
1. Brush your teeth the right way.
Brush your teeth at least twice a day – after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks, too. Brush all of your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Spend at least three minutes each time you brush. Play a song you like to help pass the time. Get a new toothbrush every three months. When you buy toothbrush, be sure it has soft bristles(鬃毛)．
2. Learn how to floss(用牙线剔牙) your teeth..
Flossing is a very important way to keep your teeth healthy. Food may hide between two teeth. Flossing can help get rid of it. You’ll need to floss your teeth at least once a day.
3. Have good eating habits.
You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay(蛀牙). Eat lots of fruits and vegetables and drink water instead of soda（苏打）.
What is the major cause of tooth decay? ______

A．Not brushing teeth	B．Not changing toothbrush
C．Eating sugar	D．Not flossing teeth

How often should we change our toothbrushes?

A．never	B．three times a month
C．every three months	D．every month

The bristles of the toothbrush must be______

A．hard

B．soft

C．expensive

D．not mentioned

Which is the right way to take care of teeth? ______

A．Only brush front teeth.

B．Not brush teeth before sleeping.

C．Spend at most three minutes to brush teeth each time.

D．Eat lots of fruits and vegetables and drink water instead of soda.

A．the doctors	B．the surroundings（环境）
C．his or her family	D．the patient himself or herself