游客
题文

Karl Landsteiner first thought of naming blood types in 1900. He put blood into four types. These four blood types were named A, B, AB, and O. Blood type O is the most common around the world. Blood type A is the second most common. and type AB is the least common.
Doctors try to give blood to a person according to the person’s blood type. Blood type O can be given to a person with any other blood type, but doctors also need to make sure that the “RH factor (因子)” in patients’ blood matches the blood they are given. If people have one kind of protein (蛋白质)in their blood, they are RH positive (Rh+). If people do not have the protein, they are Rh negative (Rh-). Most people are Rh+.
If a mother has an Rh- blood type, she may have trouble when she has a baby. If her baby is Rh+, the baby’s blood may mix with the mother’s blood before the baby is born. The mother’s blood will change. If the mother has another Rh+ baby, the mother’s blood will attack the baby’s blood. The baby may die or become sick. Doctors have to watch the mother and baby carefully in these cases.
Who named the blood type?

A.Albert Einstein. B.Thomas Edison.
C.Albert Schweitzer. D.Karl Landsteiner.

Which blood type is the second most common in the world?
A. Blood type A.    B. Blood type B.      
C. Blood type AB.   D. Blood type O .
What must be in a person’s blood if the person is Rh+?

A.Special water. B.A special protein. C.Baby’s blood. D.Electricity.

Which of the following might be dangerous for the baby?

A.Mother (Rh+) / baby (Rh+). B.Mother (Rh+) / baby (Rh-).
C.Mother (Rh-) / baby (Rh+). D.Mother (Rh+) / baby (Rh-).

Where is this article most probably taken from?

A.A story book. B.A news report. C.A science magazine. D.An ad
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

Once upon a time, there was a king. He only had one leg and one eye,but he was very smart and kind. Everyone lived a happy and healthy life because of the king. One day, the king was walking through the palace hallway and saw the paintings of his ancestors(祖先).He thought that one day his children would also walk in the same hallway and remember all the ancestors through these paintings.He wanted his children to remember him,too.So he invited many famous artists

to his palace.

All of the artists began to think about the king's physical disabilities(生理缺陷). How could his painting be made very beautiful?It was not possible.They weren't sure what his painting would be like.So one by one, they all started to politely refuse to make a painting of the king.

But suddenly one artist raised his hand and said he would make a very nice painting of the king. The king became happy hearing that. Then the artist started painting. After a long time, the painting was ready.

When the artist showed the painting, everyone was shocked. In the painting, the king was sitting on a horse, on the one﹣leg side, holding his bow (弓箭) and aiming (瞄准) something with his one eye closed. The king was very happy and gave him lots of money.

As we all know, no one is perfect. So we should try to focus on (关注) others' advantages instead of their disadvantages. Just take an optimistic view (乐观的观点) of the event. Everyone can do a good job.

(1)What did the king see in the palace hallway?   

(2)Why did the king invite artists to draw a painting of him?   

(3)Was it an easy job or a hard job to draw a painting of the king.   

(4)How did the king like the painting?   

(5)What can we learn from the artist?   

Do you think laughter can help you deal with pain? Scientists from Britain did two experiments(实验). The first was done in a lab. People wore special wristbands(腕带). Some of them were asked to watch comedies while others watched serious programs. Then the scientists tightened(勒紧)the wristbands to see how much pain the people could feel.

The other test was done at an art festival. Some people watched a comedy show and others watched a drama(戏剧). At the same time, they had to put their backs against the wall and keep their legs bent(弯曲的)just like sitting on a chair. They did this before and after the show.

Scientists found that just 15 minutes of laughter improves people's ability to stand pain by 10%.However, the serious programs and the drama didn't make a difference to pain at all.

The study found that the magic power of laughter comes from endorphins(内啡肽). These are chemicals(化学物质). They are produced by the human body. They make you feel less pain and can make people feel happier. Exercise can produce endorphins.Your muscles(肌肉)move in and out when you are laughing.Scientists believe that this makes your muscles tiring,so we start to produce endorphins.

Scientists also found that the only real and relaxing laughter works not just polite laughter.

Next time you have a headache,get together with a group of Mends,watch a funny movie and laugh.You will soon feel a lot better because laughter is the best medicine.

(1)Scientists knew how much pain the people felt by   in the first experiment.

A.

eating delicious dishes

B.

putting backs against walls

C.

tightening special wristbands

D.

sitting on comfortable seats.

(2)The other test was finished   

A.

on a chair

B.

in a lab

C.

on Sports Day

D.

at an art festival

(3)Endorphins can help human body   

A.

keep better build

B.

feel less pain

C.

get more muscles

D.

produce worse results

(4)According to the passage, we can infer that   

A.

running can produce endorphins

B.

watching TV programs can stand pain

C.

different kinds of laughter earl treat illness

D.

muscles can improve people's ability to laugh.

(5)We can probably find this passage in a   

A.

guide book

B.

movie poster

C.

travel diary

D.

medical magazine

As the fifth of seven children, I went to the same public school as my three elder sisters and brother.Every year, each child from the third grade took part in an old school tradition﹣the plant sale held in early May, just before Mother's Day.

That year I was old enough to take part in it. I wanted to surprise my mother, but I didn't have any money. I told my elder sister about it and she gave me some money. When I arrived at the plant sale, I carefully chose my favorite. I watched each plant seriously to make sure that I could find the best geranium(天竺葵). After school, with the help of my sister I bid it on the neighbor's porch(门廊).On Mother's Day, I remember how bright my mother's eyes were and how   alated  she was at my gift.

The year I was fifteen, my younger sister reached the third, grade. She told me that, she wanted to

surprise our mother. Like my elder sister did for me, I gave her some money. And she bought the same gift and we hid it in the same place. When she gave the gift to my mother, I watched them full of pride and happiness. My mother noticed me watching and gave me a soft and secret smile. With a shock at my heart, I smiled back.

I wonder how my mother could pretend (假装) to be surprised at the same sixth child, but as I watched her eyes, I knew she was not pretending.

(1)The writer first took part in the plant sale   

A.

in the third grade

B.

at the age of sixteen

C.

in the fifth grade

D.

at the age of fifteen

(2)The underlined word "elated" in the second paragraph probably means   

A.

angry

B.

upset

C.

excited

D.

relaxed

(3)The sixth child bought   for her mother.

A.

the prettiest rose

B.

the best geranium

C.

the biggest grape

D.

the freshest strawberry

(4)From the third paragraph, we can know the mother   when she got the same gift.

A.

refused to accept it

B.

pretended to be happy

C.

felt proud and happy

D.

hid it on the neighbor's porch

(5)The passage is mainly about   

A.

the best place to hide a gift

B.

a good way to surprise mom

C.

an awful secret of the family

D.

deep love between mom and children

The Temple of Heaven, in southern Beijing, was first built in 1420 and

was rebuilt during the Ming and Qing Dynasties. It was the place where

the emperors of the Ming and Qing Dynasties would admire the god and

hope for good harvest(收获). It is the largest group of buildings in the

world to pay homage(致敬)to god.

The Potala Palace was built in the seventh century and it has a long history of over 1300

years. In 641, Songtsan Gambo, the ruler of the Tubo kingdom, asked his people to

build it for princess Wencheng of the Tang Dynasty. It has 13 floors and is 117 meters

high. And it is made of wood and stone.

The Terracotta Warriors and Horses (兵马俑) is the greatest historical and cultural

site (遗址) in Lintong, Xi'an, Shanxi Province. Emperor Qin Shi Huang began to

build it at the age of 13. It took 11 years. The terracotta figures(秦俑) have the

same size as a real man. They have different heights, clothes and hairstyles because of

their different levels.

The Mogao Caves (莫高窟) is formed by 49.2 temples, 25 kilometers southeast of the

center of Dunhuang. It is also called the Caves of a Thousand Buddhas (千佛洞).

The largest statue(雕像)in front of the cave wall is 34.5 meters high and the smallest

is only 2 cm high. The art of Dunhuang covers more than 10 major forms, such as wall

paintings, music and dance and so on.

(1)The Temple of Heaven was first built   

A.

in 492

B.

in 641

C.

in 1311

D.

in 1420

(2)Songtsan Gambo built the Potala Palace for   

A.

the god

B.

princess Wencheng

C.

his people

D.

Emperor Qin Shi Huang

(3)You can visit   if you are in Xi'an.

A.

the Temple of Heaven

B.

the Potala Palace

C.

The Terracotta Warriors and Horses

D.

the Mogao Caves

(4)The smallest statue of the Caves of a Thousand Buddhas is   high.

A.

2 cm

B.

34.5 m

C.

25 km

D.

13 cm

(5)Which of the following is TRUE according to the passage?   

A.

The Pulala Palace is made of wood and stone.

B.

The terracotta figures are bigger than real men.

C.

The Mogao Caves is in the southwest of Dunhuang.

D.

The emperors admired the people in the Temple of Heaven.

A young couple decided to go camping in the mountains to celebrate their first year of marriage. They took with them all the things they would need to go camping﹣warm clothes, food and a tent.

They went up to the mountains and found the perfect place to set up their tent. After that, they decided to go for a hike(远足)to see more of the mountains.

After a long hike, they went back to their camp, built a fire and cooked dinner. Finally, it was time to go to sleep,

Sometime in the middle of the night, the wife woke her husband up and said, "Look up at the sky.What do you see?"

Her husband answered, "I see millions of stars."

His wife said, "That's right. What does that mean to you?"

The husband said, "Well, if there are so many stars out there, that means there might also be a planet just like the planet we live on:And if that's true,then there could be life on one of those planets,That's kind of exciting!"

His wife said, "You are wrong. It means that someone has stolen our tent!"

(1)The young couple went to the mountains to   

A.

go fishing

B.

have a party

C.

go camping

D.

celebrate birthdays

(2)Before going hiking, they   

A.

built a fire

B.

set up a tent

C.

went to sleep

D.

cooked dinner

(3)The husband could see   in the sky.

A.

many nice birds

B.

lots of planes

C.

some dark clouds

D.

millions of stars

(4)The wife wanted to tell her husband   

A.

someone stole their tent

B.

the stars were beautiful

C.

people lived on other planets

D.

there was a planet like theirs

(5)The best title of the passage is"   ".

A.

A Boring Trip

B.

A Great Planet

C.

A Missing Tent

D.

A Perfect Night

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号