An allergy is a strong reaction to a substance. Many things can cause allergies. The most common cause is pollen (花粉), which is usually produced by trees in the spring, grasses in the summer and weeds in the fall, as part of their reproductive process.
Other causes include organisms, chemicals, plants and dead skin particles from dogs and cats can also cause allergic reactions. So can insect stings and some food.
The most common kind of allergic reactions is itchy (痒的) , watery eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life-threatening, for example, when breathing passages become blocked.
It is not always easy to avoid allergies. Drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy. A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops resistance in his body.
In the United States, experts estimate that up to 8% of young children have food allergies. Every year these allergies cause about 30,000 cases with severe reactions that require immediate treatment. It can result in breathing trouble and in some cases death. It is said that about 100 to 200 people will die. It is said that most of the reactions are caused by peanuts and tree nuts like walnuts.
People can also be allergic to medicines. The American Academy of Allergy, Asthma and Immunology says about 10% of bad reactions to commonly used medicines are allergic. In other words, a person’s immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes, itching, breathing problems and swelling in areas such as the face.
1.Allergies seldom occur in winter because ________.
A. plants don’t usually flower in cold weather
B. people usually wear thick clothes
C. pollen is active below freezing point
D. the weather is too cold for viruses
2.What will happen if one’s breathing passages get blocked?
A. It is nothing serious. B. One’s life is at risk.
C. One has to be sent to hospital. D. One is sure to breathe easily.
3.According to immunotherapy, the patient is supposed to________.
A. take some medicines to produce antibodies
B. have immediate operations
C. be given the allergy-causing substance until the patient develops resistance
D. be exposed to enough allergy-causing substances
4.The best title would be _______.
A. The ABCs of Allergies B. The Cause of Allergies
C. The Treatment of Allergies D. The Prevention of Allergies
高二英语阅读理解中等难度题
An allergy is a strong reaction to a substance. Many things can cause allergies. The most common cause is pollen (花粉), which is usually produced by trees in the spring, grasses in the summer and weeds in the fall, as part of their reproductive process.
Other causes include organisms, chemicals, plants and dead skin particles from dogs and cats can also cause allergic reactions. So can insect stings and some food.
The most common kind of allergic reactions is itchy (痒的) , watery eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life-threatening, for example, when breathing passages become blocked.
It is not always easy to avoid allergies. Drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy. A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops resistance in his body.
In the United States, experts estimate that up to 8% of young children have food allergies. Every year these allergies cause about 30,000 cases with severe reactions that require immediate treatment. It can result in breathing trouble and in some cases death. It is said that about 100 to 200 people will die. It is said that most of the reactions are caused by peanuts and tree nuts like walnuts.
People can also be allergic to medicines. The American Academy of Allergy, Asthma and Immunology says about 10% of bad reactions to commonly used medicines are allergic. In other words, a person’s immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes, itching, breathing problems and swelling in areas such as the face.
1.Allergies seldom occur in winter because ________.
A. plants don’t usually flower in cold weather
B. people usually wear thick clothes
C. pollen is active below freezing point
D. the weather is too cold for viruses
2.What will happen if one’s breathing passages get blocked?
A. It is nothing serious. B. One’s life is at risk.
C. One has to be sent to hospital. D. One is sure to breathe easily.
3.According to immunotherapy, the patient is supposed to________.
A. take some medicines to produce antibodies
B. have immediate operations
C. be given the allergy-causing substance until the patient develops resistance
D. be exposed to enough allergy-causing substances
4.The best title would be _______.
A. The ABCs of Allergies B. The Cause of Allergies
C. The Treatment of Allergies D. The Prevention of Allergies
高二英语阅读理解中等难度题查看答案及解析
A good teacher is many things to many people. In my own experience, the people I respect the most and think about the most are the teachers who demanded the most discipline (纪律) from their students.
I miss one teacher in particular that I had in high school. I think she was a good teacher because she was a very strict person. I remember very clearly a sign on her classroom door. It was a simple sign that said, "Laboratory: in this room the first five letters of the word was stressed not the last seven." In other words, labor for her was more important than oratory, which means making speeches.
She prepared her work very carefully and told us to do the same. We got lots of homework from her. Once she had broken her arm, and everybody in the class thought that maybe the homework load would be reduced, but it continued just the same. She checked our work by stamping her name at the bottom of the papers to show that she had read them.
I think sometimes teachers who demand the most are liked the least. But as time goes by, this discipline really seems to benefit the students.
1.Which of the following is considered a good teacher by the writer?
A. A patient teacher.
B. An honest teacher.
C. A strict teacher.
D. An easy-going teacher.
2.When the teacher's arm was broken, she _____.
A. gave her students the usual amount of homework
B. gave her students less homework
C. asked her students to check the homework themselves
D. gave her students more homework
3.What's the writer's opinion of discipline?
A. It makes the students dislike their teachers.
B. It does good to the students in the long run.
C. It's too much for young children.
D. It does more harm than good to the students.
4.What's the Chinese for the underlined word "oratory"?
A. 演讲 B. 讲稿
C. 访谈 D. 采访
高二英语阅读理解中等难度题查看答案及解析
Visitors worry that London is an expensive city but there really are so many things to do for
free in London from museums and galleries to free music and walking tours.
Art Galleries
Tate Modern and Tate Britain are exceptional national art galleries housing some of the finest artworks in the world. Tate Modern focuses on contemporary art while Tate Britain displays British Art from the sixteenth century to the present day.
Museums
All of London's major museums are free, but most offer some special exhibitions for a fee. My favorite is the Museum of London where you can learn the history of London from Roman times to today. Other great major museums are the British Museum, the V&A, the Science Museum, and the Natural History Museum. Oh, and I love the Geffrye Museum. And the Horniman Museum. Now I can't decide which is the best!
Many of London's major art galleries and museums are open in the evening and often have special evening events. This can be a great way to relax at the end of a busy day seeing the sights. The main London galleries and museums are air-conditioned so it can be a wonderful way to cool down in the height of summer in the city. Galleries and museums are not open late every night so here is a handy list to help you plan your days and evenings.
Royal Parks
Many people say the Queen Mary's Rose Gardens in Regent's Park is their favorite spot in London, and who am I to argue? I would also recommend St. James's Park as it offers one of the best views of Buckingham Palace. Hyde Park is enormous and includes the ever popular Diana Memorial Fountain and the Peter Pan Statue.
There are often free talks and guided walks in the royal parks so do check the What's On section of the Royal Parks website.
Changing of the Guard
No visit to London is complete without seeing this military tradition. The Queen's Guard in London changes in the Forecourt inside the gates of Buckingham Palace at 11:30am every day in the summer and every other day in the winter. Get there early and view the spectacle from outside the front gates.
1.The passage is intended to _________.
A. recommend some free scenic spots to tourists
B. help visitors save money while visiting Ireland
C. advise travelers how to choose art articles D. tell readers London’s wonderful history
2.If you visit some museums in London in the evening, you ________.
A. can see all the artworks free of charge B. have to endure the heat of the summer
C. need to pay admission for general exhibition
D. may have a chance to enjoy some special events
3.In order to watch Changing of the Guard in summer, visitors have to _________.
A. gain access to the front gates after 11:30 a.m.
B. pay a sum of money to enter the Royal Parks
C. arrive at Buckingham Palace before 11:30 a.m.
D. come through the gates of Buchingham Palace
高二英语阅读理解中等难度题查看答案及解析
Visitors worry that London is an expensive city but there really are so many things to do for
free in London from museums and galleries to free music and walking tours.
Art Galleries
Tate Modern and Tate Britain are exceptional national art galleries housing some of the finest artworks in the world. Tate Modern focuses on contemporary art while Tate Britain displays British Art from the sixteenth century to the present day.
Museums
All of London's major museums are free, but most offer some special exhibitions for a fee. My favorite is the Museum of London where you can learn the history of London from Roman times to today. Other great major museums are the British Museum, the V&A, the Science Museum, and the Natural History Museum. Oh, and I love the Geffrye Museum. And the. Now I can't decide which is the best!
Many of London's major art galleries and museums are open in the evening and often have special evening events. This can be a great way to relax at the end of a busy day seeing the sights. The main London galleries and museums are air-conditioned so it can be a wonderful way to cool down in the height of summer in the city. Galleries and museums are not open late every night so here is a handy list to help you plan your days and evenings.
Royal Parks
Many people say the Queen Mary's Rose Gardens in Regent's Park is their favorite spot in London, and who am I to argue? I would also recommend St. James's Park as it offers one of the best views of Buckingham Palace. Hyde Park is enormous and includes the ever popular Diana Memorial Fountain and the Peter Pan Statue.
There are often free talks and guided walks in the royal parks so do check the What's On section of the Royal Parks website.
Changing of the Guard
No visit to London is complete without seeing this military tradition. The Queen's Guard in London changes in the Forecourt inside the gates of Buckingham Palace at 11:30am every day in the summer and every other day in the winter. Get there early and view the spectacle from outside the front gates.
53. The passage is intended to _________.
A. recommend some free scenic spots to tourists
B. help visitors save money while visiting Ireland
C. advise travelers how to choose art articles D. tell readers London’s wonderful history
54. If you visit some museums in London in the evening, you ________.
A. can see all the artworks free of charge B. have to endure the heat of the summer
C. need to pay admission for general exhibition
D. may have a chance to enjoy some special events
55. In order to watch Changing of the Guard in summer, visitors have to _________.
A. gain access to the front gates after 11:30 a.m.
B. pay a sum of money to enter the Royal Parks
C. arrive at Buckingham Palace before 11:30 a.m.
D. come through the gates of Buchingham Palace
高二英语阅读理解简单题查看答案及解析
Have you been told you have penicillin allergy? Did your parents tell you that you had a reaction as an infant or child, so you should never take it again? Has it been so long since you had a reaction to penicillin that you don’t remember what happened? If you fit any of these descriptions or are just not sure if you have penicillin allergy, there’s good news for you: Chances are, you probably don’t have it.
Between 10 to 20 percent of Americans believe they have a penicillin allergy, but a recent study at Mayo Clinic found that only 10 percent of those people are truly penicillin allergic. In other words, 9 out of 10 people who think they have penicillin allergy are avoiding it for no reason. Even in people with documented allergy to penicillin, only about 20 percent are still allergic 10 years after their initial allergic reaction. It’s not necessarily a permanent condition.
Why is this important? Aren’t there many other antibiotics you can use if you have penicillin allergy? Penicillin has been around since 1928. Penicillin and its related medicines include amoxicillin, methicillin and amoxicillin-clavulnate. These medicines are highly effective treatments for many bacterial infections, such as strep throat and ear infections. Of course, there are alternative antibiotics, but these are often much more expensive and carry a higher risk of side effects. Typically, these alternative antibiotics are broad-spectrum, meaning they fight many types of bacteria, both good and bad. That can lead to development of drug-resistant bacteria, or deadly “superbugs”. This increases the risk for all of us in the future of not having an effective antibiotic to treat our infection.
How do you find out if you have penicillin allergy? Board-certified allergists can test you. First, the allergist will get a history from you about your possible allergy. Typical questions include: How long ago did you have the reaction? What type of reaction occurred, and how soon after you took the penicillin did the reaction appear? The testing is done on the forearm by pricking the skin with a needle. If the results are negative and there is no reaction, penicillin will be injected in the skin. These tests are not painful, and results are available in 15 minutes. A positive reaction may lead to some swelling and itching where the test was placed, which usually goes away within an hour.
In very rare cases, an allergic reaction occurs. This can include hives, swelling, wheezing and/or difficulty breathing. The allergist is trained to treat this rare condition quickly if it happens. If all skin testing is negative, you may be given an oral dose of penicillin in the office. The oral drug challenge is used to verify that you don’t have penicillin allergy. Usually, you’ll be observed in the office for 30 minutes to make sure you have no problems.
If you find out you don’t have a penicillin allergy, notify your physicians that it’s now safe for you to take penicillin. They can take “penicillin allergy” off your chart for good!
1.What can we know about penicillin allergy according to the passage?
A. Most people believe that they are penicillin allergic.
B. People with documented allergy will have it forever.
C. About 90 percent of people are truly penicillin allergic.
D. Many people with initial allergy can avoid it later.
2.Which is NOT the drawback of the alternative antibiotics?
A. They cost much more than penicillin.
B. They can treat many bacterial infections.
C. They can result in drug-resistant bacteria.
D. They also fight good bacteria when used.
3.If you have a positive reaction in skin tests, _______.
A. you can’t leave the office within an hour
B. your skin is supposed to swell and itch
C. it is not safe for you to take penicillin
D. you’ll be given an oral dose of penicillin
4.Which can replace the underlined word “verify”?
A. confirm B. attach
C. declare D. control
高二英语阅读理解中等难度题查看答案及解析
It's not all that hard to build an advanced and large vocabulary. Like many things in life, it's 1. ongoing (不间断的) process, and the best part of the process is that there's room for improvement -- you'll keep getting better and better. Of course you have to work at it. You wouldn't think that a few 2. (month) of exercise in your teens would be enough for the rest of your life, and that's also true 3. building your vocabulary. If you keep at it daily, pretty soon you 4.( find) that you have an excellent vocabulary.
One of the most 5. (effect) ways to build vocabulary is to read good books. You need to 6. (real) read at least one good book a week, preferably a classic. This isn't as hard as it sounds, and it is far better 7. any other method because you improve your vocabulary while 8. (read) an interesting piece of literature. Another nice thing is that you learn both new words and 9. (they) use unconsciously, meaning that you are likely 10. (use) the words learned this way in conversations almost automatically.
高二英语语法填空中等难度题查看答案及解析
[1] One out of many important things for the whole family to do is to have dinner together. Researchers began reporting the benefits of family dinner about a decade ago, focusing mainly on how it affects children. Studies show that those families who eat dinner at least 3 or 4 times a week together, benefit in many ways.
[2] Eating together helps families achieve open communication and build stronger and healthier relationships. Children have better grades at school and are better adjusted as teens and adults, and the entire family enjoys healthier nutrition. For many families, eating dinner together proves to be a good and effective way to reduce the risk of youth rates of addiction, and helps to raise healthier children. It is also a great time to share the events of the day, discuss news and ideas and just be together and enjoy each other's company.
[3] During dinner time parents have better opportunity to show that they are the prior to their children. Sitting at the same table and sharing meals is where and when parents can find out more about their children's school performance, daily activities and attitudes toward life. When parents have all this information they can better direct their kids toward positive things in life. They also have better chance to reduce the possibility that children will get involved with alcohol, tobacco, and illegal drugs.
[4] However, family researchers say that the benefits of family dinner by no means can be considered as automatic. Parents can sit down to dinner with their kids every day and achieve nothing. ______ if there is too much arguing going on, if there is no meaningful conversation or, what is even worse, if there is just plain silence during gathering.
1.What is the main idea of the text? (no more than 8 words)
2.List two benefits that parents can get by having dinner together with children.(no more than 15words).
3.Fill in the blank in Paragraph 4 with proper words (no more than 8 words).
4.What information can parents probably get about their children at family dinner? (no more than 12 words)
5.What does the word “it” (line 3, paragraph 1) probably refer to? (no more than 3 words)
高二英语阅读理解中等难度题查看答案及解析
Gesture is the use ol such movements to express thought, emotion, etc. A gesture can be many things. Slamming a book shut shows anger and frustration. Opening a door lor someone shows kindness. Gestures go much beyond small actions.
My friend once told me a story in high school. One day he met a girl who was on the girls’ basketball team. He said hello, gave her a hard handshake and wished her good luck as she had a game later. He came to find out he saved that girl’s life. She had planned on committing suicide and by shaking her hand and saying good luck, he made her realize someone really cared about her. I’m not saying all actions are going to change someone else’s life that much, but it may make their day better.
Gestures can be negative too. In my senior year of high school, a guy on my football team was late and was walking down the field to practice. Everyone on the team knows our coach hates it when people are late and walk on the field. He was walking in as if he owned the place and had no care of what his teammates were thinking. His body language had never been good. The other players on the team had never liked him because of his body language.
Gestures can often say more than a person wants. One day I was mad at my parents for some pointless reason. All day I stayed downstairs. When one of them walked by, I would just stare at the TV or my phone and hope they wouldn’t try to start a conversation. When they tried to talk to me,I would give one-word answers. Sitting on the couch and watching TV by myself all day was not my intent but that was what my gestures told my parents.
One simple gesture can change a person’s thoughts, day or maybe even save their lives. If everyone made a nice gesture to someone else every day, our school, town, and world would become a better place. One single act of random kindness at a time or a kind gesture can change the world.
1.The story in Paragraph 2 shows .
A. gestures are more important than words
B. the girl made the writer’s friend feel warm
C. the writer’s friend had affection for the girl
D. gestures may help people be positive about life
2.How is the passage mainly developed?
A. By making comparisons. B. By following the order of time.
C. By giving examples. D. By analyzing cause and effect.
3.Which of the following shows the structure of the passage?
CP : Central Point P : Point Sp: Sub-point (次要点) C: Conclusion
A. B.
C. D.
4.Which is the best title for this passage?
A. Words Count B. Actions Speak
C. Kindness Shines D. Behavior Changes
高二英语阅读理解困难题查看答案及解析
Time is the most valuable thing that mankind has.1.. Many people try to manage their time. They arrange information and tips in order to effectively do so.
2.. Time can be managed easily by finding out what is important and arranging these things in the order of importance. In this way you know your direction before making any plans and do not waste time and energy unnecessarily.
Now comes the next question. 3.. The answer is that you need to find out what steps you need to take and what you want to do. Then you know much time to spend for each thing. These steps are like goals. 4.. Not having them is like walking blindly in a dark room, trying to find the door.
Time management also demands a set schedule that works best for you. In this way you will be able to arrange your tasks based on their importance and finish them. In this way you will not waste your time in beating around the bush.
5.. There are lots of things that we need to do in short time. Therefore, having good itme management skills is at the top of the list of things we all need.
A. We all live in a fast-paced world now.
B. Using every passing second effectively can benefit us.
C. Could you divide your time equally while doing your work?
D. How do you manage time and what type of information is needed to do so?
E. Setting goals is the most important part of time management.
F. Managing time is not that hard.
G. The aim of time management is to give us a feeling of satisfaction.
高二英语信息匹配中等难度题查看答案及解析
Time is the most valuable thing that mankind has. 1. Many people try to manage their time. They arrange(安排) information and tips in order to effectively(有效地) do so.
2. Time can be managed easily by finding out what is important and arranging these things in the order of importance. In this way you know your direction before making any plans and do not waste time and energy unnecessarily.
Now comes the next question. 3. The answer is that you need to find out what steps you need to take and what you want to do. Then you know how much time to spend for each thing. These steps are like goals. 4. Not having them is like walking blindly in a dark room, trying to find the door.
Time management also demands a set schedule that works best for you. In this way you will be able to arrange your tasks based on their importance and finish them. In this way you will not waste your time in beating around the bush.
5. There are lots of things that we need to do in a short time. Therefore, having good time management skills is at the top of the list of things we all need.
A. We all live in a fast-paced (快节奏的) world now.
B. Using every passing second effectively can benefit us.
C. Could you divide your time equally while doing your work?
D. How do you manage time and what type of information is needed to do so?
E. Setting goals is the most important part of time management.
F. Managing time is not that hard.
G. The aim of time management is to give us a feeling of satisfaction.
高二英语其他题中等难度题查看答案及解析