When you get a cut, you cover it with a bandage. How do you know when to change it? Maybe you just wait until it’s wet or dirty. But when people have long-term or chronic (慢性的)wounds that take months to get better, changing bandages too early or to late could make healing take even longer. Changing the dressing on a wound too often can provide an opportunity for infections to get in. But if a bandage gets very wet very quickly from the inside, it might be filling with pus (脓)--a sign an infection has begun. Judging just when to change is important.
Chronic wounds are common in people who are older or who have certain health conditions. Chronic wounds affect around 6.5 million people per year in the United States. When Anushka Naiknaware, 13, learned about chronic wounds, she decided to make a device that could alert a person when it’s time to change their bandages.
After a lot of trials and errors, the teen settled on a design that used an “ink” filled with carbon nanoparticles(纳米粒子). The teen loaded her ink into a printer cartridge (墨盒) to print onto her special paper, which was to be made into bandage. Well, actually, Anushka loaded her ink into many, many printer cartridges. Just changing a printer cartridge isn’t easy, and filling one is even harder.
The small printed papers cost only 5 to 10 cents, Anushka estimates. The Bluetooth sensor is more expensive, but the teen notes that it could be used over and over again. She also knows there is a long way to go before her design can help patients. It hasn’t been tested on a real person yet. “You have to make sure everything works perfectly,” she says.
1.What can we learn from Paragraph 1?
A. The right time to change bandages is significant.
B. Chronic wounds with a bandage won’t heal.
C. Changing bandages often will help cure wounds.
D. Older people are victims of chronic wounds.
2.What does the underlined word “alter” in Paragraph 2 probably mean?
A. Assist. B. Remind. C. Comfort. D. Control.
3.What is stressed in Paragraph 3?
A. The shape of the printer cartridge.
B. The discovery of materials of the bandage.
C. The amazing features of carbon nanoparticles.
D. The difficulty Anushka had with her invention.
4.What could be the best title for the text?
A. A bandage is widely used for injuries.
B. A girl decides to treat chronic wounds.
C. A bandage that can tell the changing time.
D. A teen invents a device that heals wounds.
高二英语阅读理解中等难度题
When you get a cut, you cover it with a bandage. How do you know when to change it? Maybe you just wait until it’s wet or dirty. But when people have long-term or chronic (慢性的)wounds that take months to get better, changing bandages too early or to late could make healing take even longer. Changing the dressing on a wound too often can provide an opportunity for infections to get in. But if a bandage gets very wet very quickly from the inside, it might be filling with pus (脓)--a sign an infection has begun. Judging just when to change is important.
Chronic wounds are common in people who are older or who have certain health conditions. Chronic wounds affect around 6.5 million people per year in the United States. When Anushka Naiknaware, 13, learned about chronic wounds, she decided to make a device that could alert a person when it’s time to change their bandages.
After a lot of trials and errors, the teen settled on a design that used an “ink” filled with carbon nanoparticles(纳米粒子). The teen loaded her ink into a printer cartridge (墨盒) to print onto her special paper, which was to be made into bandage. Well, actually, Anushka loaded her ink into many, many printer cartridges. Just changing a printer cartridge isn’t easy, and filling one is even harder.
The small printed papers cost only 5 to 10 cents, Anushka estimates. The Bluetooth sensor is more expensive, but the teen notes that it could be used over and over again. She also knows there is a long way to go before her design can help patients. It hasn’t been tested on a real person yet. “You have to make sure everything works perfectly,” she says.
1.What can we learn from Paragraph 1?
A. The right time to change bandages is significant.
B. Chronic wounds with a bandage won’t heal.
C. Changing bandages often will help cure wounds.
D. Older people are victims of chronic wounds.
2.What does the underlined word “alter” in Paragraph 2 probably mean?
A. Assist. B. Remind. C. Comfort. D. Control.
3.What is stressed in Paragraph 3?
A. The shape of the printer cartridge.
B. The discovery of materials of the bandage.
C. The amazing features of carbon nanoparticles.
D. The difficulty Anushka had with her invention.
4.What could be the best title for the text?
A. A bandage is widely used for injuries.
B. A girl decides to treat chronic wounds.
C. A bandage that can tell the changing time.
D. A teen invents a device that heals wounds.
高二英语阅读理解中等难度题查看答案及解析
When faced with the decision to get out of bed or have a few more minutes of sleep, which do you choose? Believe it or not, that decision could make a world of difference in the rest of your day.
About 85 percent of Americans use an alarm clock to wake up in the mornings, according to sleep researcher Till Roennenber. And while there are no official numbers on snoozing (打盹), a quick survey of social media makes it clear that hitting the snooze button is a popular pastime.
As to how the snooze button will affect your day, scientists have mixed opinions. Some scientists think people who hit the snooze button in the mornings are actually clever, creative and happy while some said that hitting the snooze button will ruin your life, or at the very least your day. "I feel that hitting the snooze button has got to be one of the worst things that ever happened to human sleep,” researcher Jonathan Horowitz said. "The chances of you ‘snoozing’ and actually experiencing a meaningful rest are close to zero.”
According to some sleep experts, when hitting the snooze button，you are in fact confusing your body and mind, and throwing yourself into a deep state of being sleepy. The body needs some time to wake up, so, when returning to what will be a light sleep for a brief period of time, you are putting your body back into a sleep mode before waking it again. At that point your body won’t know what it wants, resulting in a sort of half awaken state.
If you really want to take advantage of an alarm clock, the key is to form a healthy sleep cycle. Focus your efforts on getting enough sleep each night and waking up at the same time each day so that when your alarm goes off you feel rested.
1.What can we infer about hitting the snooze button from Paragraph 2?
A.People do it just for fun. B.It is a common practice.
C.People take it seriously. D.It is a bit childish.
2.What do some sleep experts think of hitting the snooze button?
A.It is meaningful in the long term.
B.It makes people become lazy.
C.It brings us a sense of satisfaction.
D.It affects our body and mind.
3.What’s the author’s suggestion on getting the best out of alarms?
A.Forming a good sleep habit. B.Trying to relax ourselves.
C.Making use of willpower. D.Using an extra alarm.
4.What is the best title for the text?
A.Ways to keep refreshed in the morning.
B.The snooze button and people's character.
C.Should you rely on the snooze button?
D.How to avoid the light sleep mode?
高二英语阅读理解中等难度题查看答案及解析
——How are you getting on with your work these days?
——______.
| A．I usually take the bus | B．I do my work on the computer |
| C．slowly but steadily | D．It is my business |
高二英语单项填空中等难度题查看答案及解析
Only when something gets lost _____________.
A. can you realize how important it is to you
B. how important you can realize it is to you
C. you can realize how important it is to you
D. can you realize how important is it to you
高二英语单项填空简单题查看答案及解析
--- What do you think of Jane, Peter?
--- It’s not too difficult to get along with her, but sometimes she is too _____ to what people say.
| A．sensitive | B．permanent | C．similar | D．brilliant |
高二英语单项填空简单题查看答案及解析
When you are ______ about something, you are ______ to do whatever you can to get it．
A. anxious; likely B. eager; possible
C. enthusiastic; likely D. concerned; probable
高二英语单项填空中等难度题查看答案及解析
How do you spend your time？To get it，Paul T．Rankin asked sixty-eight individuals to keep an accurate，detailed record of what they did every minute of their waking hours．He discovered that 70percent of their waking time was spent on one thing only-communication．Put that evidence alongside the research findings uncovered by the Human Engineering Laboratories，they discovered that，vocabulary，more than any other factor yet known，predicts financial success．New words make us better thinkers as well as communicators．What better reason for beginning right now to extend your vocabulary？But how？
Hybrid （杂交产生的） corn combines the best qualities of several varieties to ensure maximum productivity．A hybrid approach to vocabulary should，in the same way，ensure maximum results．That's why you should use the CPD formula．
Through Context．When students in a college class were asked what should be done when they came across an unknown word in their reading，84percent said，"Look it up in the dictionary．"If you do，however，you short-circuit the very mental processes needed to make your efforts most productive．
But there's another reason．Suppose someone asks you what the word"fast"means．You answer，"speedy or swift"．But does it mean that in such context as"fast color"or"fast friend"？And if a horse is fast，is it securely tied or galloping at top speed？It could be either．It all depends．On the dictionary？No，on the context．After all，there are over twenty different meanings for"fast"in the dictionary．But the dictionary doesn't tell you which meaning is intended．That's why it makes such good sense to begin with context．
Through Word Parts．Now for the next step．Often unfamiliar words contain one or more parts，which，if recognized，provide definite help with meaning．Take the word"monolithic"for example．Try to separate the parts．There is the prefix mono-，meaning"one"，and the root-lith，meaning"stone"．Finally，there's the suffix-ic，meaning"consisting of"．Those three parts add up to this definition："consisting of one stone"．
To speed up your use of word parts，you will be introduced to the fourteen most important words in the English language．The prefix and root elements in those few words are found in over 14，000words．With those amazingly useful shortcuts，you can build up vocabulary，not at a snail's pace，one word at a time，but in giant leaps，up to a thousand words at a time．
Through the Dictionary．Now you can see why you should consult the dictionary last，not first．You've looked carefully at the context．You've looked for familiar word parts．Now you play Sherlock Homes．In light of context or word parts，you try to solve a mystery．What exactly does that strange word mean？Only after you go through the mental gymnastics to come up with a tentative （不确定的） definition should you open the dictionary to see if you're right．
You are now personally involved．Your increased interest will lead to a better memory of both word and meaning．It also encourages your development of the habits needed to accelerate your progress．And when you see in black and white the definition you had expected，what a feeling of accomplishment is yours．In that way，the CPD Formula provides the exact approaches for maximum effectiveness．
Well，there it is，your new formula-Context，Parts，Dictionary．Use it!The results will be like the money in the bank．
1.The research findings of the Human Engineering Laboratories show that ______ ．
A.intelligence and vocabularies are closely related
B.income and vocabularies are closely related
C.people of large vocabularies are bound to succeed in the future
D.vocabulary is of great importance to a student's academic performance
2.What would most college students do while coming across an unfamiliar word？ ______
A.Seek help from others．
B.Infer the meaning through context．
C.Look for familiar word parts．
D.Consult the dictionary．
3.What does"monolingual"mean according to the passage？ ______
A.Involving only one language．
B.Using two languages．
C.Speaking or using many languages．
D.Involving more than one language．
4.This passage is meant to teach readers how to ______ ．
A.use the dictionary
B.build up vocabulary through context
C.extend vocabulary with the help of dictionaries
D.enlarge vocabulary by means of the CPD formula．
高二英语阅读理解困难题查看答案及解析
—How do you feel about our manager—Mr. Yang?
—He is very easygoing. I feel ____ when I stay with him.
A. at a distance B. at ease C. at a loss D. at heart
高二英语单项填空简单题查看答案及解析
—How do you feel about our manager—Mr. Yang?
—He is very easygoing. I feel ____ when I stay with him.
A. at a distance B. at ease C. at a loss D. at heart
高二英语单项填空简单题查看答案及解析
Do you know since when it is ________ you have been interested in poetry?
A. when B. until C. how D. that
高二英语单项填空简单题查看答案及解析