The place of exposure to the greatest amount ...

The place of exposure to the greatest amount of allergen（过敏原）for the longest time is in the bedroom. Up to 60% of the dust mites（螨虫）found in the home are actually living in your bed and you spend about one-third of your life in the bedroom! And, bedrooms are the easiest area to control as an allergen free zone. Your cleaning professional will first vacuum the mattress（垫子）, carpeting and furniture using a vacuum cleaner.

The mattress is then thoroughly cleaned on all surfaces using the Responsible Care cleaning agents and a special low moisture cleaning tool designed to leave the mattress as dry as possible. Following cleaning, Allergy Relief Treatment is applied to all mattress surfaces using a fine mist application. The mattress is then placed in a drying position and a special air mover used to speed the drying process, which, depending upon temperature and humidity, normally takes about an hour.

The same safe cleaning agents are used to clean the bedroom carpeting and if desired, any furniture or rugs. This is also followed by an application of Allergy Relief Treatment. Once again, a speed drying system is set up to dry the cleaned items as quickly as possible and bring the humidity down to normal levels. Baseboards and windowsills are cleaned as well. While the cleaning and treatment service is being performed it is highly recommended that the bedding and pillows be washed in hot water and that two cups of Allergy Relief Treatment be added to the washing cycle.

While servicing the bedroom is the highest priority（优先）, significant benefits may also result from cleaning and treating other areas where allergy sufferers spend lots of time. These areas include the furniture and carpeting in rooms where time is spent watching television, reading and so on. Also, carpeted areas that pets have access to should be cleaned and treated.

A test for the presence of dust mites in quantities requiring treatment is also available from our company. But we will only test dust mites and will not provide information on pet allergen.

1.Which place has the most dust mites in your room?

A.Bed. B.Carpet.

C.Furniture. D.Floor.

2.What is mainly talked about in paragraph 2?

A.The use of cleaning agents.

B.The surfaces of mattress.

C.Cleaning the mattress.

D.Drying the mattress.

3.What do we know about Allergy Relief Treatment mentioned in this passage?

A.It is a cure to allergy.

B.It is a tool to kill mites.

C.It is the name of a company.

D.It is a chemical to prevent allergy.

4.Where might this passage come from?

A.A magazine about furniture.

B.The website of a cleaning company.

C.The website of a hospital.

D.A newspaper on public health.

高三英语阅读理解简单题查看答案及解析

Peanut allergies (过敏) are among the most common and most dangerous of food allergies. A tiny exposure to peanuts can mean big trouble for a person with a peanut allergy—not just sneezing or coughing，but something as potentially deadly as narrowing of the airways.

But a recent study suggests that some children may be able to beat back their allergic reactions to peanuts by gradually introducing trace amounts of the nut into their diets. It's too early to say for certain，so if you have a peanut allergy，do not try this at home. But the first results look promising.

Two teams of scientists have been experimenting on a group“of 29 children who are allergic to peanuts”At the beginning of the study，each kid received less than 1/1，000 of a peanut per day. (Imagine splitting a peanut into 1，000 parts!) Over the course of the study， the children gradually increased the amount of the peanut in their diets

Nine of the children have been receiving the treatment for two years，and five of those nine now appear to be free of their peanut allergies，and can eat peanuts with no problem. But the other four have not benefited so much from the therapy（治疗）.

The two teams of scientists are now doing a follow-up study on two groups of children with the allergy. Children in one group will receive the new therapy，while the others will not. Researchers hope this study will help them learn if the therapy truly does work.

Scientists don't understand why some people get peanut allergies and others don't，but are trying to find a way to help people with the allergy. Because of the severity of some peanut allergies，scientists want to know the answer as soon as possible. “This is very encouraging， but remember，it's not something you try at home，”says one of the researchers.

68.According to the passage，the peanut allergy________.

A. can be deadly if only a small amount is used

B. causes a lot of trouble for many parents

C. allows people to eat only small amounts of peanuts

D. is considered the least common and dangerous food allergy

69.Scientists are trying to treat peanut allergies by________.

A. exposing children with the allergy to as many peanuts as possible

B. changing the eating habits of children with peanut allergies gradually

C. giving children Peanuts in slowly increasing amounts

D. exploring ways to resist the feelings caused by peanut allergies

70.The experiment shows that________.

A. people with peanut allergies can't use small amounts of peanuts in their diets.

B. children are more easily cured than adults

C. all children can be cured of their peanut allergies if given more time of treatment

D. about 55-percent children with peanut allergies have been cured

71. Scientists are now doing a follow-up study in order to________.

A. explore why some people get the illness while others don’t

B. show whether peanut allergies can really be dangerous

C. check whether the therapy really works or not

D. explore whether the allergy can be cured without treatment

高三英语阅读理解简单题查看答案及解析

If we planted a lot more trees in just the right places, they could reduce the amount of carbon in the atmosphere to levels not seen since the 1920s, said study leader Jean Francois Bastin, an ecologist from the Swiss Federal Institute of Technology. After examining more than 70,000 high-quality satellite photos of trees from all over the planet, ecologists concluded that the earth could support 900 million additional hectares (公顷) of tree cover.

Bastin and his colleagues developed a computer program that estimates how much forested land could be restored both now and in a future warmer world. The team members combed through 78,774 satellite photos of a variety of ecosystems- everywhere from the thick Amazon rainforest to the dry Sahel in Africa-that had been protected from human influence. They counted every tree in every photo to assess the current tree coverage in natural environments. The researchers combined that information with data about the climate, temperature and soil conditions for each ecosystem. Then they taught their program to put it all together to determine how much tree coverage a particular area could support.

The result shows trees currently cover 2.8 billion hectares of land- but they have the potential to populate as much as 4.4 billion hectares. Right now, much of the additional 1.6 billion hectares is being used for agriculture or urban spaces. The researchers took those areas off the table and saw that the earth still has 900 million hectares ready and waiting to be restored with trees an area roughly the size of Brazil. When those trees mature, they could remove 205 gigatonnes (兆吨) of carbon from the atmosphere, the study calculated, That represents about two-thirds of the roughly 300 gigatonnes of atmospheric carbon that can be traced to human actions, they said.

Even if trees are planted in the most mindful way, other actions are still needed to fight climate change, Bastin said.

1.Why did Bastin develop a computer program?

A.To reduce air pollution in Africa.

B.To determine carbon dioxide in the air.

C.To assess the potential forested land.

D.To calculate the area of forest in the world.

2.What does the underlined phrase “combed through” in Paragraph 2 refer to?

A.Looked into. B.Put away.

C.Brought back. D.Took in.

3.What can we infer from what Basin said in the last paragraph?

A.Brazil has large areas to plant trees.

B.The tree cover is not enough to control greenhouse gases.

C.Trees removed two-thirds of carbon in the atmosphere.

D.Other actions are equally important compared to planting trees.

4.What is the author’s attitude towards the research result?

A.Disapproving. B.Doubtful.

C.Supportive. D.Objective.

高三英语阅读理解困难题查看答案及解析

The pregnant woman always sits in the non­smoking area of restaurants to reduce her exposure ________ smoke.

A．to　 B．with　 C．in　 D．from

高三英语单项填空中等难度题查看答案及解析

The early lack of exposure to science ，technology，engineering and mathematics (STEM) can be harmful to achieving gender (性别）balance in these fields. It begins when we are young and continues throughout our time in high school.

While at home，girls generally don’t get to experience the level of exposure or encouragement in STEM fields that their male counterparts do. It is often subtle ，but it’s the first hurdle that faces and confuses so many women. Boys ，on the other hand, get on their path ，and are encouraged to do so， generally earlier than girls. For example ，boys are more often given science sets as toys ，which spark an interest in these subjects.

In school ₃ boys are often pushed to take the more challenging math and science classes. So if we want to attract the best and brightest minds into the fields that will advance us as a people _? a country，and a planet，we can no longer look to only half of the population. Young girls cannot possibly consider opportunities they do not know exist. If girls are not exposed to certain subject and career paths，they are highly unlikely to choose to follow them in college.

Our bias(偏见)toward girls₉ either from families or from schools ，is so rooted in our culture that we often don’t even recognize it. Although the situation Has changed greatly in the past 20 or 30 years，there is still a sense that girls aren't as good at math ₉ for instance ₉ even though there is almost no evidence to support such a belief.

It is important that as a society we deal with gender stereotypes long before young people are faced with a decision to declare or choose a major in college. Without making efforts to break them， we are limiting the potentials of our youth，both male and female. Providing the necessary resources， exposure _, and encouragement would help young women understand that their gender shouldn^’t determine the career path they choose, and that pursuing a STEM career does not make them less feminine.

1.According to the passage _? not many girls grow to enter STEM fields because______.

A．girls are not as good at STEM as boys

B．girls do not like to take science classes

C．girls get fewer chances to know about STEM

D．girls seldom survive the high pressure positions

2.The underlined word “it” in Para. 4 refers to______

A．our bias           B．our culture        C．the situation       D．a sense

3.The main purpose of the passage is to______.

A．show women’s potentials in STEM fields

B．praise women’s contributions to STEM fields

C．describe the present gender bias in STEM fields

D．call for more involvement of women in STEM fields

4.Which of the following shows the structure of the passage?

高三英语阅读理解中等难度题查看答案及解析

One of the greatest concerts I ever attended never took place at all. Not quite, anyway.

Instead, a violent_______,which came pretty much out of nowhere on a summer night, left the Saratoga Performing Arts Center without electrical power. The _______ storm hit just minutes before the Philadelphia Orchestra (交响乐团) was about to take the_______ along with a guest soloist, the violinist Sarah Chang.

Forty-five minutes later, the audience were still _______, hoping power would be restored and the _____ would get under way. That’s when Chang ______ onto the stage, alone except for her ______ and a couple of stagehands equipped with flashlights to ______ her and her music.

The orchestra ______ backstage. But Chang began playing Fritz Kreisler’s Recitativo and Scherzo-Caprice. Maybe the rain was still pounding on the roof and ______ the grass. Maybe the thunder hadn’t died away _____ by distance. Chances are, though, no one______ that night could tell you there was anything at all in the air except the ______.

The performance was ______, but it was delivered with both skill and grace—a sort of“ _____” card for the audience’s presence and patience. The applause was ______. then, several thousand music lovers_____ through pooling rainwater and ______ to their cars.

Maybe the story ends right there. But the then-twenty-year-old musician’s ______ for the people coming to hear her music says something about the essential relationship between artist and audience. Maybe Sarah Chang understood that when she offered her music as a ______ that night, without powered loudspeaker and in the near-darkness of a summer evening storm.

1.A. flood　　 B. earthquake　　 C. thunderstorm　　 D. fire

2.A. global　　 B. unexpected　　 C. regular　　 D. uncertain

3.A. chance　　 B. action　　 C. trouble　　 D. stage

4.A. shouting　　 B. struggling　　 C. waiting　　 D. gathering

5.A. concert　　 B. rain　　 C. dance　　 D. sunlight

6.A. climbed　　 B. stepped　　 C. jumped　　 D. held

7.A. piano　　 B. conductor　　 C. violin　　 D. band

8.A. admire　　 B. broadcast　　 C. circle　　 D. light

9.A. remained　　 B. occupied　　 C. hid　　 D. worked

10.A. flooding　　 B. cleaning　　 C. irrigating　　 D. destroying

11.A. either　　 B. yet　　 C. ever　　 D. just

12.A. screaming　　 B. complaining　　 C. performing　　 D. listening

13.A. violinist　　 B. lighting　　 C. music　　 D. cheering

14.A. brief　　 B. successful　　 C. boring　　 D. embarrassing

15.A. all right　　 B. never mind　　 C. don’t worry　　 D. thank you

16.A. weak　　 B. enthusiastic　　 C. frequent　　 D. permanent

17.A. lost their control　　 B. traveled　　 C. made their way　　 D. looked

18.A. away　　 B. down　　 C. out　　 D. back

19.A. respect　　 B. analysis　　 C. generosity　　 D. tolerance

20.A. trick　　 B. gift　　 C. relief　　 D. mercy

高三英语完形填空中等难度题查看答案及解析

With a rise in the number of allergies and worries over exposure to chemicals, more people are looking for alternative ways to clean their homes. To this end, some people are turning to the use of garbage enzyme (酶)--a concentrated liquid produced from fruit and vegetable waste. Garbage enzyme can be easily produced in the home, and has many uses, including as a cleansing agent, insect killer and even shampoo.

At the same time, it is hoped that the production and use of garbage enzyme will help reduce household waste and encourage people to take the initiative in sorting their trash.

The concept of using home-produced enzymes entered China several years ago when a special bucket imported from Japan was promoted by some health experts as a means of making healthy drinks. While the effectiveness of the enzyme drink remains unproven, garbage enzyme has been shown to be effective as an agent for cleaning toilets and floors, and as a fertilizer for plants.

Making wet garbage into an enzyme solution has been practiced in Southeast Asian countries for decades, greatly reducing household waste and protecting the environment by reducing the use of bleach (漂白剂) and other strong chemicals. Many people have realized that chemicals do harm to human body and the more garbage enzyme they make, the more good it does to the environment.

Any reduction in the volume of household garbage will benefit the city. Shanghai produces the largest amount of garbage than any other city in China. It is also home to the largest refuse landfill in Asia, the Laogang Refuse Landfill in Pudong New Area, which occupies a total area of about 30 square kilometers. It is struggling to accommodate all of the city's garbage, with a fifth phase under construction. The landfill and its surrounding areas are heavily polluted, something that nearby residents have been complaining about for years. The process of making enzyme solution consumes wet garbage. This means residents don't produce wet garbage after they start to make garbage enzyme. They even find the amount of wet garbage produced by their families is insufficient, so that they have to ask for garbage from their neighbors. Another advantage is that producing garbage enzyme encourages people to think more about garbage separation — something the local government has been trying to encourage but which still is not practiced by some residents.

1.Which of the following belongs to the usage of garbage enzyme?

A.Making plants more fragrant.

B.Creating materials to clean houses.

C.Producing effective healthy drinks.

D.Reducing the amount of dry garbage.

2.What is the writer's attitude toward garbage enzyme?

A.Disapproving. B.Ambiguous. C.Favorable. D.Skeptical.

3.How will garbage enzyme possibly affect people in the future?

A.It will force people to ask for more garbage from their neighbors.

B.It will prevent people from using chemicals to clean their houses.

C.It will shelter people from household garbage pollution for good and all.

D.It will make people take garbage separation seriously before dumping it.

4.What is the passage mainly about?

A.The threat of constructing more landfills.

B.How to classify garbage wisely and practically.

C.How to make garbage enzyme at home successfully.

D.The practice of turning leftover into a household product.

高三英语阅读理解中等难度题查看答案及解析

语法填空

Enough sleep is important to health. The amount of sleep ______(need) depends on the age of the person and the conditions in ______ sleep takes place. The young may need more sleep than _____ old, but usually eight hours are enough for the health of grown-ups. Some can do with _____ than this amount,____ ___ others may need more. Every person knows his own need. _____ is then a matter of good judgment to satisfy his need. Sleep should always be enough to make one bring back his ______ (strong) and get ready for a day’s work.

Fresh air is necessary to sound sleep. So it is not ______ reason for some people to think that it is practicable to sleep in the open air. A bath at bedtime, ________ hot nor cool but of body temperature, may be helpful to sleep. Sleep-producing drug should never be taken except when ______ (suggest) by a doctor.

高三英语语法填空中等难度题查看答案及解析

Enough sleep is important to health. The amount of sleep needed __31________ on the age of the person and the conditions in ___32_______ sleep takes place. The young may need more sleep than ___33_______ old, but usually eight hours are enough for the health of grown-ups. Some can do with __34________ than this amount, but others may need more. Every person knows his own need. ___35_______ is then a matter of good judgment to satisfy his need. Sleep __36________ always be enough to make one bring back his __37________ (strong) and get ready for a day’s work.

Fresh air is necessary to sound sleep. So it is not __38_________ reason for some people to think that it is practicable to sleep in the open air. A bath at bedtime, __39________ hot nor cool but of body temperature, may be helpful to sleep. Sleep-producing drug(帮助睡眠的药物) should never be taken except when ___40_________ (suggest) by a doctor.

高三英语填空题简单题查看答案及解析

As the world’s population continues to increase, so does the amount of global waste people produce. According to data collected by the World Bank Group, nations will generate 4 billion tons of waste annually by the year 2100. The pollution from trash is not only ruining the world’s oceans, air and soil but endangering all living creatures.

For years government agencies have been telling citizens to live a zero-waste lifestyle. Traditionally, manufacturers would make a product to be used and thrown by consumers. This linear model of production offered no help in the fight against global waste. Alternatively, a circular economy has been introduced. This is a system which aims to minimize waste and restore used materials. Once a product’s value is exhausted, the materials are recycled and returned to manufactures. The outcome is less waste.

In 2016, The Wall Street Journal reported on the Taiwan island’s recycling success rate in an article titled The World’s Geniuses of Garbage Disposal. In 1997, Taiwan established its signature 4-in-l Recycling Program, consisting of communities, recycling enterprises, government cleaning teams and the Recycling Fund. Residents separate their recyclable waste and bring it to their community’s recycling locations. The local government collection teams and private collectors collect it. Recycling companies buy waste materials from them to generate profits. Importers and manufacturers who are responsible for the recyclable products pay a fee into the Recycling Fund. The Recycling Fund is an essential aspect of the program used to subsidize (资助) the recycling disposal system, support education and research and development as well as finance recycling efforts in the future.

By following a circular system, more products than ever are being manufactured using recycled materials. For example, used tires can be recovered to pave roads, while plastic is reused to make new plastic products. And it also helps to conserve natural resources, reduce pollution, save landfill space and even create new job opportunities.

1.Why has a circular economy been introduced?

A.The population is on the rise.

B.It can help handle global waste.

C.The living creatures on earth are getting less diverse.

D.Traditional products are not environmentally friendly.

2.What can we learn about 4-in-l Recycle Program?

A.The recyclable materials can be collected officially or privately.

B.The importers and manufactures cover the costs of the program.

C.Recycling companies buy waste materials from the residents.

D.The government invests money as the recycling fund.

3.What’s the effect of the circular system?

A.It will cause no waste or pollution. B.It reduces the costs of the products.

C.It helps lower the unemployment rate. D.All the materials can be recycled again.

4.Which of the following does the text suggest?

A.Do nothing by halves. B.All that glisters isn’t gold.

C.Actions speak louder than words. D.One man’s trash is another man’s treasure.

高三英语阅读理解中等难度题查看答案及解析