___________ the man who lost the purse, Mike had to stay there longer.
A. Not finding B. Not found C. Not having found D. Having not found
高二英语单项填空中等难度题
___________ the man who lost the purse, Mike had to stay there longer.
A. Not finding B. Not found C. Not having found D. Having not found
高二英语单项填空中等难度题查看答案及解析
In the 19th century, doctors tried to transfuse blood (输血)to patients who had lost blood in accidents or to try to save them. However, in most cases there would be a horrible reaction. When the donated blood mixed with the patient's own blood，it clotted (凝结)almost immediately. That stopped the circulation (循环)and the patient would die. Born on 14th June 1868，Karl Landsteiner，a doctor in Vienna, was very concerned about this. He knew there was something in the blood that caused reactions, but some people did manage to escape. Perhaps different people had different kinds of blood? He got a lot of blood samples (标本)from people, and mixed and matched them. Blood has two parts，the blood cells and the liquid serum(血清).You take blood cells from one person and mix them with the serum of another. If they react, the cells will clot and form a big lump. That means it is not safe to transfuse blood between these people. Landsteiner matched hundreds of samples like this，to find out who was safe for whom and who wasn’t. In fact, there were blood groups now called A, B, AB and O.
So what was going on in the blood? All our red blood cells have sugar molecules(糖分子) that are stuck on their surfaces. The red blood cells of people with group A have one kind of sugar, while those with B have another. People with AB have both of these while people with O have none.
People with the A blood group have a chemical substance called anti-B, while those of B blood group have anti-A in their serum. People with AB group have neither anti-A nor anti-B, while people with O have both. If you were B group and got blood from an A person,the anti- A in your blood would cause all the cells with A-sugar on them to clot immediately, stopping the circulation of blood.
In 1907, Dr. Reuben Outenberg carried out the first safe blood transfusion by matching blood groups. Blood transfusion became quite common from then on. And it helped saved thousands of lives in the First World War.
1.What does the passage mainly talk about?
A.Accidents in blood transfusion.
B.The discovery of blood groups.
C.Who Karl Landsteiner is.
D.The success of Dr. Reuben Otlenberg.
2.What inspired Landsteiner to carry out his experiment?
A.Some doctors in the 19th century.
B.The cause of some patient deaths.
C.Many medical accidents that he came across.
D.Certain successful cases of blood Iransrusion.
3.In which of the following can ''anti-A'' be found?
A.Only in the A blood group.
B.Only in the B blood group.
C.Only in the AB blood group.
D.In blood groups of B and O.
4.Since when has blood transfusion Income universal?
A.The first successful blood transfusion done by Ottenberg.
B.The time when blood groups were named by Landsteiner.
C.The year when the First World War broke out.
D.The blood transfusion by matching blood groups.
高二英语阅读理解中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.Who taught the man to make coffee?
A. Joan. B. Mary. C. Mike.
2.When will the woman’s friends arrive?
A. At 5:00. B. At 6:00. C. At 7:00.
3.What doesn’t the man need to buy?
A. Sugar. B. Bananas. C. Apples.
高二英语长对话中等难度题查看答案及解析
_____in the queue for half an hour, the old man suddenly realized he had left the purse in the office.
A. Having waited B.Waiting C.to wait D. To have waited
高二英语单项填空简单题查看答案及解析
Once there was a man who had lost one of his arms in an accident. Day by day he got more and more , thinking of not being able to do lots of things he used to do. One day he got so disappointed that he to kill himself. He found a tall building and to the top of it. Standing on the edge of the building, he was looking down to have a look at the world before off. Then he caught sight of a man along the sidewalk, whistling and kicking up his heels. When the man came , he found that this man didn’t have any arms at all. He thought to himself, “What am I doing here? sorry for myself? I have one good arm to do things with. the man with no arms dancing on the side-walk is so , maybe I should go on with my life.” He hurried down to the man. He wanted to tell him how he was to see him and how stupid he was to have the of killing himself. He thanked him again for his life and now he knew that he could it with one arm since that guy could go on his life without arms.To his , the man with no arms said nothing began dancing and whistling again.The man with one arm felt even more and finally asked, “Can you tell me why you are so happy, please?”The man replied, “I’m not happy. My body itches (痒)!”
1.A. nervous B. surprised C. depressed D. angry
2.A. when B. whether C. that D. if
3.A. failed B. decided C. liked D. refused
4.A. climbed B. turned C. flew D. rose
5.A. fast B. best C. last D. first
6.A. shaking B. taking C. showing D. jumping
7.A. yelling B. drinking C. dancing D. sleeping
8.A. closer B. further C. nearly D. away
9.A. Saying B. Feeling C. Begging D. Asking
10.A. almost B. still C. only D. just
11.A. Not only B. As if C. So that D. Now that
12.A. strange B. happy C. kind D. sad
13.A. teach B. check C. beat D. catch
14.A. glad B. hard C. slow D. silly
15.A. pride B. joy C. fear D. thought
16.A. loving B. finding C. saving D. losing
17.A. play B. use C. finish D. make
18.A. surprise B. regret C. delight D. shame
19.A. as B. so C. or D. and
20.A. dangerous B. comfortable C. pleased D. curious
高二英语完形填空中等难度题查看答案及解析
Lisa was angry with Joe because she couldn’t _____ his disrespect to the kind man who had helped them out.
A. violate B. allocate C. relate D. tolerate
高二英语单项填空中等难度题查看答案及解析
An old man who lived in a small back street of my hometown had to tolerate（忍受） the nuisance（讨厌的人或事） of boys playing football and making a lot of noise outside his house at night.
One evening when the boys were particularly_21__，he went out to talk to them. He explained that he had just retired(退休) and was_22__when he could see or hear boys playing his_23_game，football. He would_24_ give them ￥25 each week to play in the street at night. The boys got_25_，for they could hardly believe_26_they were being paid to do something they__27_.
The first two weeks had passed，the boys came to the old man’s house，and went away__28__with their 25 Yuan. The third week when they came back，__29__，the old man said he hadn’t had much money__30__himself and sent them away with only 15 Yuan. The fourth week，the man said he had not yet 31his paycheck from the government and gave them only 10 Yuan. The boys were very disappointed，but there was__32__much that they could do about it.
At the__33_of the fifth week，the boys came back and__34_at the old man’s door，waiting for their_35_.Slowly，the door opened and the old man appeared. He_36_that he could not afford to pay them 25 yuan_37_he had promised，but said he would give them 38 yuan each week without fail.
This was really too much for the boys. “You expect us to play seven days a week for only five yuan！” they yelled.“__39__！”
They stormed away and 40 played on the street again.
1. A. hot B．noisy C．troublesome D．naughty
2. A. happiest B．excited C．encouraged D．bored
3. A. interesting B．amusing C．acceptable D．favorite
4. A. more ever B．therefore C．willingly D．forever
5. A. shouted B．cried C．excited D．smiled
6. A. how B．when C．that D．what
7. A. expected B．enjoyed C．admired D．respected
8. A. happily B．thankfully C．gratefully D．tearfully
9. A. but B．in addition C．however D．besides
10. A. earned B．saved C．remained D．left
11. A. received B．accepted C．paid D．given
12. A. not B．no C．so D．very
13. A. final B．end C．start D．beginning
14. A. kicked B．hit C．beat D．knocked
15. A. rewards B．awards C．checks D．wages
16. A. expressed B．apologized C．stated D．expected
17. A. as B．like C．when D．though
18. A. 5 B．10 C．15 D．20
19. A. No way B．No possible C．No problem D．No play
20. A. ever B．never C．still D．keep
高二英语完型填空简单题查看答案及解析
The beggar’s suffering couldn’t arouse any ________ ,who had lost his shirts because of being addicted to gambling.
A．satisfaction B．sympathy
C．assistance D．dignity
高二英语单项填空简单题查看答案及解析
Who had a good time in the exhibition?
A. The woman. B. The man. C. The man’ s wife.
高二英语短对话中等难度题查看答案及解析
What did the man do during his vacation?
A. He stayed at home.
B. He had a part-time job.
C. He took some courses.
高二英语短对话中等难度题查看答案及解析