Counterfeit(假的) medicines are a widespread pr...

Counterfeit(假的) medicines are a widespread problem in developing countries. Like other counterfeits, they look like real products. But counterfeit drugs may contain too little or none of the active ingredients of the real thing.

People do not get the medicine they need. And in some cases, counterfeits cause death. Twenty children in Bangladesh died last year after being given acetaminophen(对乙酰氨基酚).The medications contained ingredients that looked, smelled and tasted like the real thing. The medicine was produced by a local drug company that used a dangerous substitute to save money.

The problem of counterfeit medicines is especially serious in Africa, Asia and Latin America. The WHO estimates that up to thirty percent of medicines on sale in many of those countries are counterfeit. The problem is less widespread among industrialized countries. The WHO says counterfeits make up less than one percent of the illegal drug market in countries like the United States, Canada, Japan and New Zealand.

But the agency also says as much as fifty percent of the medicine sold on the Internet is counterfeit.

Much is being done to fight counterfeit drugs. Several companies are developing ways to make counterfeits easier to identify. And there are existing methods, like a machine that can quickly identify chemicals in pills to confirm if the pills are real. Other ideas include things like special tracking codes for drug packages. People could send a text message with the code and get a message back, which proves that what they bought is listed in a database. Some drug makers and other companies put three-dimensional images called holograms(全息图)on their products as a security device.

1.Last year twenty children in Bangladesh died because of _________.

A. unreal drugs

B. online medicines

C. acetaminophen

D. unclean water

2.We can draw a conclusion from the passage that___________ .

A. it is very cheap and convenient to buy medicines online.

B. we had better not buy medicines online.

C. more and more people will buy products online.

D. medicine companies don’t pay much attention to counterfeit drugs.

3.What is the main idea of the last paragraph?

A. It reveals(揭露) the reasons why counterfeit drugs are widespread.

B. Special tracking codes for drug packages are used to identify counterfeits.

C. It shows the danger of counterfeit drugs.

D. Some measures are being taken to fight counterfeit drugs.

4.Which of the following country may have serious problems of counterfeit medicines?

A. Canada.　　 B. India.

C. New Zealand.　　 D. Japan.

高二英语阅读理解中等难度题查看答案及解析

阅读表达。(共5小题；每小题2分，共10分。)

Counterfeit (假的) medicines are a widespread problem in developing countries. Like other counterfeits, they look like real products. But counterfeit drugs may contain too little or none of the active ingredients (原料) of the real thing.

People do not get the medicine they need. And in some cases the counterfeits cause death. Twenty children in Bangladesh died last year after being given acetaminophen (醋氨粉). The medications contained ingredients that looked, smelled and tasted like the real thing. The medicine was produced by a local drug company that used a dangerous substitute to save money.

The problem with counterfeit medicines is especially bad in Africa, Asia and Latin America. The W. H. O. estimates that up to thirty percent of the medicines on sale in many of those countries are counterfeit.              . The W. H. O. says counterfeits make up less than one percent of the illegal drug market in countries like the United States, Canada, Japan, and New Zealand.

But the agency also says as much as fifty percent of the medicine sold on the Internet is counterfeit.

Much is being done to fight counterfeit drugs. Several companies are developing ways to make counterfeits easier to identify. And there are existing methods, like a machine that can quickly identify chemicals in pills to confirm if the pills are real. Other ideas include things like special tracking codes for drug packages. People could send a text message with the code and get a message back proving that what they bought is listed in a database. Some drug makers and other companies put three-dimensional images called holograms (条形码) on their products as a security device.

1. What advice can we get from Paragraph 4? (no more than 8words)

2. What is the main idea of the last paragraph? (no more than 10 words)

3. Complete the following statement with proper words. (no more that 4 words)

A local drug company produced counterfeit medicines by using dangerous substitutes        .

4. Fill in the blank in Paragraph 3 with a proper sentence. (no more than 10 words)

5. What does the underlined word “they” in Paragraph 1 refer to? (no more than 3 words)

高二英语其他题中等难度题查看答案及解析

In an ideal world，people would not test medicines on animals. Such experiments are stressful and sometimes painful for animals，and expensive and time­consuming for people. Yet animal experimentation is still needed to help bridge vast gaps in medical knowledge. That is why there are some 50 to 100 million animals used in research around the world each year.

Europe，on the whole，has the world’s most restrictive(严格的) laws on animal experiments. Even so，its scientists use some 12 million animals a year，most of them mice and rats，for medical research. Official statistics show that just 1.1 million animals are used in research in America each year. But that is misleading. The American authorities do not think mice and rats are worth counting and，as these are the most common laboratory animals，the true figure is much higher. Japan and China have even less comprehensive（全面的） data than America.

Now Europe is reforming the rules governing animal experiments by restricting the number of animals used in labs. Alternatives to animal testing，such as using human tissue or computer models，are now strongly recommended. In addition，sharing all research results freely should help to reduce the number of animals for scientific use. At present，scientists often share only the results of successful experiments. If their findings do not fit the hypothesis（假设） being tested，the work never sees the light of day. This practice means wasting time，money，and animals’ lives in endlessly repeating the failed experiments.

Animal experimentation has taught humanity a great deal and saved countless lives. It needs to continue，even if that means animals sometimes suffer. Europe’s new measures should eventually both reduce the number of animals used in experiments and improve the way in which scientific research is conducted.

1.What is the main idea of this passage?

A. The success of animal experiments should be ensured.

B. A ban on the use of animals in the lab should be enforced.

C. Greater efforts need to be taken to reduce the number of lab animals.

D. Scientists should be required to share their research results with each other.

2.Which of the following statements is true about animals used in the lab?

A. America uses only about 1.1 million lab animals per year.

B. Europe does not use mice and rats as lab animals at all.

C. Britain does not use as many lab animals as China does.

D. Japan has limited data on the number of lab animals used each year.

3.Which of the following is mentioned as an alternative to replace animal experiments?

A. Statistical studies.　　　　　 B. Computer models.

C. DNA planted in animals.　　　 D. Tissue from dead animals.

4.What usually happens to unsuccessful animal experiments?

A. They are not made known to the public.

B. They are made into teaching materials.

C. They are collected for future publication.

D. They are not removed from the research topic list.

高二英语阅读理解中等难度题查看答案及解析

There are two medicines that change people’s lives, one of 1. is aspirin, 2. (invent) in 1897. It is made from leaves or tree barks(树皮) possessing a special chemical and was first sold in 3. form of tablets in 1900. Aspirin has saved many people’s lives by reducing fever and pain. It 4. (recommend) for reducing potential heart attack strokes and some cancers. There have been more discoveries on how it can help increase the 5. (long)of people’s lives and help people with diseases.

The other drug which has proved 6. (benefit) to mankind is penicillin. It was first discovered in 1928, but it was not until World II 7.penicillin was purified and produced in large quantities. Due 8. the widespread use of penicillin, many 9. (life)were saved during the war. Had penicillin not been available, many people would have died from sickness of even small wounds. Penicillin became the 10. (great) drug of the 20th century.

高二英语语法填空简单题查看答案及解析

There’s a new frontier (新领域) in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.

Food production

With a 3D printer, a cook can print complicated (复杂的) chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that—it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

Nutrition

Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food to meet their own nutritional needs, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”

Challenges

Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste (糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

1.What benefit does 3D printing bring to food production?

A. It helps cooks to create new dishes.

B. It makes the dishes more delicious.

C. It saves time and effort in cooking.

D. It contributes to restaurant decorations.

2.According to Paragraph 3, 3D-printed food____________.

A. is more available to customers.

B. can keep all the nutrition in raw materials.

C. is more tasty than food in supermarkets.

D. can meet individual nutritional needs.

3.What could be the best title of the passage?

A. 3D Food Printing: From Farm to Table

B. 3D Food Printing: Delicious New Technology

C. The Challenges for 3D Food Production

D. A New Way to Improve 3D Food Printing

高二英语阅读理解中等难度题查看答案及解析

What are the biggest problems that society will have to deal with in the new age? There are diseases like AIDS and cancer. There’s climate change, of course. And what about producing enough cheap food and energy for the world’s growing population? Who’s going to solve all these terrible problems? Yes, politicians and world leaders will have a big part to play. Yes, businesses will need to create the economic wealth to pay for some of these things. But who’s going to make a much greater difference to something like AIDS or climate change? It’s going to be a scientist. It is the scientist who can turn some new bit of science into a new technology to solve these problems.

If you like thinking about the world around you, why not become a scientist? It doesn’t mean you have to wear a white coat and plastic glasses and spend all your time in a lab as most people often imagine! Scientists do all kinds of amazing things that are actually interesting!

Military scientists develop not only new weapons but new military technologies that could help make wars out of date. Forensic(法医的) scientists work with the police to find quite small clues to catch criminals. Scientists work in schools and colleges as the teachers and professors who will train tomorrow’s scientists. Don’t think a scientist is far away! Maybe you like cooking? You could be a food technologist helping to keep fruit and vegetables fresher for longer. Perhaps sport is your thing? Do you know that most top athletes work with sports scientists in order to improve their performance? You could even be the science writer who gets to spend the life studying the latest advances and sharing them with the world.

Looking for something to do for the rest of your life? My advice? Take a long and hard look at science. It is interesting and ever.

1.Many problems are mentioned in the first paragraph to ________.

A.suggest they are impossible to be solved

B.introduce the causes of these problems

C.show the writer’s worry about the future world

D.show scientists play an important part in solving them

2.What is needed to solve these problems?

A.Advanced weapons. B.Enough energy.

C.New technologies. D.A growing population.

3.Most people think the life of scientists is ________.

A.amazing B.boring C.colorful D.unreal

4.Which of the following statement is NOT true according to the passage?

A.Military technologies could help prevent wars in the future.

B.For those interested in cooking, food technologies may be a choice.

C.Forensic scientists play an important part in dealing with crimes.

D.Politicians and world leaders can solve all the social problems.

5.The passage is intended for people who ________.

A.haven’t decided on their career

B.have no interest in science

C.hope for the world peace

D.have little knowledge of science

高二英语阅读理解中等难度题查看答案及解析

What are the biggest problems that society will have to deal with in the new age? There are diseases like AIDS and cancer. There’s climate change, of course. And what about producing enough cheap food and energy for the world’s growing population? Who’s going to solve all these terrible problems? Yes, politicians and world leaders will have a big part to play. Yes, businesses will need to create the economic wealth to pay for some of these things. But who’s going to make a much greater difference to something like AIDS or climate change? It’s going to be a scientist. It is the scientist who can turn some new bit of science into a new technology to solve these problems.

If you like thinking about the world around you, why not become a scientist? It doesn’t mean you have to wear a white coat and plastic glasses and spend all your time in a lab as most people often imagine! Scientists do all kinds of amazing things that are actually interesting!

Military scientists develop not only new weapons but new military technologies that could help make wars out of date. Forensic(法医的) scientists work with the police to find quite small clues to catch criminals. Scientists work in schools and colleges as the teachers and professors who will train tomorrow’s scientists. Don’t think a scientist is far away! Maybe you like cooking? You could be a food technologist helping to keep fruit and vegetables fresher for longer. Perhaps sport is your thing? Do you know that most top athletes work with sports scientists in order to improve their performance? You could even be the science writer who gets to spend the life studying the latest advances and sharing them with the world.

Looking for something to do for the rest of your life? My advice? Take a long and hard look at science. It is interesting and ever.

1.Many problems are mentioned in the first paragraph to ____.

A. suggest they are impossible to be solved

B. introduce the causes of these problems

C. show the writer’s worry about the future world

D. show scientists play an important part in solving them

2.What is needed to solve these problems?

A. Advanced weapons. B. Enough energy.

C. New technologies. D. A growing population.

3.Most people think the life of scientists is ____.

A. amazing B. boring C. colorful D. unreal

4.Which of the following statement is NOT true according to the passage?

A. Military technologies could help prevent wars in the future.

B. For those interested in cooking, food technologies may be a choice.

C. Forensic scientists play an important part in dealing with crimes.

D. Politicians and world leaders can solve all the social problems.

5.The passage is intended for people who ____.

A. haven’t decided on their career

B. have no interest in science

C. hope for the world peace

D. have little knowledge of science

高二英语阅读理解中等难度题查看答案及解析

Some problems ___ in the lecture by Mr.Smith are very popular in our school, such as the waste of electricity, water and food, etc...

A. referring      B. referred to   C. referring to    D. were referred

高二英语单项填空简单题查看答案及解析

Though plastic shopping bags are cheap and useful, they cause widespread pollution. Now, we may have an unlikely helper to help clean up our garbage — a small wax worm.

The worm’s hidden skills were discovered by accident. About two years ago, Federica Bertocchini, a developmental biologist at the Spanish National Research Council and an amateur beekeeper, was cleaning out bees’ nest that had been filled with worms. She removed the worms and put them in a plastic bag while doing the cleaning. After finishing, she went back to the room where she had left the worms, and found they had escaped from the bag. When she checked, she saw that the bag was full of holes.

Realizing she may have made an important discovery, Bertocchini teamed up with other researchers to conduct further research. They began by placing 100 worms on some plastic bags and discovered that over a 24-hour period, the worms managed to chew through 92 milligrams of plastic. The researchers make an appropriate judgment that at this rate, the group of worms could　 degrade (降解) an average-sized 5.5-gram plastic bag within a month. To rule out the possibility that chewing was causing the degradation, the researchers spread the soft wet substance inside the body of some recently dead worms on a sheet of plastic. Sure enough, even the liquid was able to eat through the material, confirming that the worms have plastic-digesting enzymes (酶).

While the news is certainly encouraging, not everyone is convinced. The Michigan State University’s Ramani Narayan believes the tiny pieces of microplastics released by the plastic-eating worms would pick up harmful substances and transport them up the food chain, causing, even more, harm to the environment and human health. Susan Selke, director of Michigan State University School of Packaging, is concerned that the worms will not be able to survive in an oxygen-free landfills where large amounts of waste material are buried under the earth.

However, Bertocchini is not planning to transport worm armies to landfills. Instead, the researcher wants to identify the enzyme that helps degrade the plastic. The researcher says, maybe we can find the molecule (分子) and produce it on an industrial level, rather than using a million worms in a plastic bag.

1.What did the experiment of using dead worms find out?

A.Worms’ chewing may cause the degradation.

B.A plastic-eating chemical exists in wax worms.

C.Dead worms are effective in dealing with plastic.

D.It takes a long time for worms to degrade plastic.

2.What is Ramani Naravan's attitude to Bertocchini's finding?

A.Objective B.Convinced C.Questioning. D.Optimistic.

3.What might Bertocchini focus her later research on?

A.The structure of plastic-degrading enzymes.

B.The use of other worms in disposing plastic.

C.Wax worms’ adaptability to the landfill environment.

D.The chance of producing wax worms on a large scale.

4.What is the best title for the text?

A.Can wax worms save the environment?

B.Wax worms have an appetite for plastic.

C.Why do wax worms have plastic-eating skills?

D.Hungry worms join the fight against plastic pollution

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.What are the speakers talking about?

A.Problems in their study. B.News in the newspaper. C.A blood disease.

2.Why won’t Julia go into the city center at night?

A.She is too exhausted.

B.She is still scared of darkness.

C.The news of murder scares her.

3.What is TRUE about the local girl mentioned in the conversation?

A.She is seriously ill. B.Her family is rich. C.She is now in the US.

高二英语长对话中等难度题查看答案及解析