Mosquitoes have an extraordinary ability to t...

Mosquitoes have an extraordinary ability to target humans far away and fly straight to their unprotected skin. Regrettably, mosquitoes can do more than cause an itchy( 发痒的)wound. Some mosquitoes spread several serious diseases, including Dengue, yellow fever and malaria.

Over one million people worldwide die from these diseases each year. New research now shows how　 mosquitoes choose who to bite.

Mosquitoes need blood to survive. They are attracted to human skin and breath. They smell the carbon dioxide gas, which all mammals breathe out. This gas is the main way for mosquitoes to know that a warm-blooded creature　 is nearby.

But mosquitoes also use their eyes and sense of touch. Michael Dickinson is a professor at the California　 Institute of Technology. His research shows how these small insects, with even smaller brains, use three senses to　 find a blood meal.

Michael Dickinson's team used plumes( 烟 )- a material that rises into the air of carbon dioxide gas into a wind tunnel. They then used cameras to record the mosquitoes. The insects followed the plume.

Then, the scientists placed dark objects on the lighter colored floor and walls of the tunnel. Mr Dickinson said, at first, the mosquitoes showed no interest in the objects at all. "What was quite striking and quite surprising is that the mosquitoes fly back and forth for hours. These are hungry females and they completely ignore the objects　 on the　 floor and wall of the tunnel, But the moment they get a hit of CO2, they change their behavior quite obviously and now would become attracted to these little visual spots.

This suggested to the researchers that a mosquito's sense of smell is more important in the search for food. Once mosquitoes catch a smell of a human or animal, they also follow visual signals.

1.What do mosquitoes mainly use to find their targets?

A.Sense of smell. B.Sense of touch.

C.Sense of sight. D.Smart brains

2.How did the mosquitoes respond to the objects firstly in the experiment?

A.They flew to the dark ones B.They caught and stuck to them.

C.They took no notice of them. D.They attached themselves to them

3.How can we avoid being attacked by mosquitoes according to the text?

A.Don't let them see us

B.Use dark objects to stop them

C.Make them fly back and forth for hours

D.Attract them to objects full of carbon dioxide gas

4.What can be the best title for the text?

A.How Do Mosquitoes Survive?

B.How Do Mosquitoes Choose to Bite You?

C.Why Do Mosquitoes Need Blood?

D.Why Do Mosquitoes Attack the Human Being?

高一英语阅读理解中等难度题查看答案及解析

Mosquitoes have an extraordinary ability to target humans far away and fly straight to their unprotected skin. Regrettably, mosquitoes can do more than cause an itchy(发痒的）wound. Some mosquitoes spread several serious diseases，including Dengue，yellow fever and malaria.

Over one million people worldwide die from these diseases each year. New research now shows how mosquitoes choose who to bite.

Mosquitoes need blood to survive. They are attracted to human skin and breath. They smell the carbon dioxide gas, which all mammals breathe out. This gas is the main way for mosquitoes to know that a warm-blooded creature is nearby.

But mosquitoes also use their eyes and sense of touch. Michael Dickinson is a professor at the California Institute of Technology. His research shows how these small insects, with even smaller brains，use three senses to find a blood meal.

Michael Dickinson’s team used plumes—a material that rises into the air of carbon dioxide gas into a wind tunnel. They then used cameras to record the mosquitoes. The insects followed the plume.

Then, the scientists placed dark objects on the lighter colored floor and walls of the tunnel. Mr. Dickinson said, at first, the mosquitoes showed no interest in the objects at all. “What was quite striking and quite surprising is that the mosquitoes fly back and forth for hours. These are hungry females and they completely ignore the objects on the floor and wall of the tunnel. But the moment they get a hit of CO2, they change their behavior quite obviously and now would become attracted to these little visual blobs (斑点）.”

This suggested to the researchers that a mosquito’s sense of smell is more important in the search for food. Once mosquitoes catch a smell of a human or animal，they also follow visual signals.

1.What do mosquitoes mainly use to find their targets?

A. Sense of smell　　　　　　　　　 　　　　　 B. Sense of touch

C. Sense of sight　　　　　　　　　　　　　　　 D. Smart brains

2.The first response of the mosquitoes to the objects in the experiment is _______.

A. to fly to the dark ones

B. to catch and stick to them

C. to take no notice of them

D. to attach themselves to them

3.How can we avoid being attacked by mosquitoes according to the text?

A. Don’t let them see us.

B. Use dark objects to stop them.

C. Make them fly back and forth for hours.

D. Attract them to objects full of carbon dioxide gas.

4.What can be the best title for the text?

A. How Do Mosquitoes Survive?

B. Why Do Mosquitoes Need Blood?

C. How Do Mosquitoes Choose to Bite You?

D. Why Do Mosquitoes Attack the Human Being?

高一英语阅读理解中等难度题查看答案及解析

One of the most remarkable things about the human mind is our ability to imagine the future. In our 16 we can see what has not yet happened．For example, while we are looking forward to visiting a new place or country, we 17 what it will be like. We predict the 18 people will eat, dress and act. Of course, we do not always predict things correctly. Things are often very different from the way we 19 them to be.

One of the 20 dreams in history is the dream of the German scientist, Kekule, who had been 21 to work out a very difficult problem in physics. He had 22 and analyzed the problem from every angle for days, but there seemed to be no way of 23 out the answer. Then one night he went to bed and dreamed．When he 24 up, he realized that he knew the answer. He had solved the problem in his 25.

The hypnotist(催眠者) sat in the chair opposite him and spoke 26: I want you to concentrate on my voice. Think about nothing. You know nothing but my voice. And as you pay attention to my voice, your 27 will get heavier. Soon you’ll be asleep.

You will hear my voice and 28 my words, but your body will be asleep, your eyes are too heavy. You are almost asleep, and when you wake up you will 29 nothing.

You will forget everything. Now I am going to 30 slowly from one to five. One, two, three, four, five.

1.                A．brains          B．senses          C．sights D．minds

2.                A．imagine        B．know           C．feel  D．guess

3.                A．custom         B．way            C．style D．habit

4.                A．required        B．wished         C．left  D．expected

5.                A．famous         B．dull            C．funny    D．silly

6.                A．trying          B．managing       C．thinking  D．hoping

7.                A．learned        B．studied         C．discussed D．surveyed

8.                A．finding         B．making         C．turning   D．letting

9.                A．gave           B．sat             C．woke D．got

10.               A．lesson         B．dream         C．research  D．exercise

11.               A．softly          B．loudly          C．slowly D．firmly

12.               A．head          B．feet           C．eyes  D．body

13.               A．believe         B．understand      C．take  D．repeat

14.               A．accept         B．receive         C．hear  D．remember

15.               A．add           B．say            C．count D．speak

高一英语完型填空中等难度题查看答案及解析

One of the most remarkable things about the human mind is our ability to imagine the future. In our_______ we can see what has not yet happened. For example，while we are looking forward to_______ a new place or country，we _______what it will be like. We predict the _______ people will eat，dress and act. Of course，we do not always predict things _______.Things are often very different from the way we _______ them to be. One of the_______ dreams in history is the dream of a German scientist，Keller，who had been _______ to work out a very difficult problem in physics. He had _______and analyzed（分析）the problem from every angle for days，but there ________ to be no way of ________out the answer. Then one night he went to bed and dreamed. When he ________ up，he realized that he knew the answer. He had solved the problem in his ________.The hypnotist（催眠者）sat in the chair opposite him and spoke ________：I want you to concentrate on my voice. Think about ________.You know nothing but my voice. And as you pay attention to my voice，your________ will get heavier. Soon you'll be asleep. You will hear my voice and________my words，but your body will be asleep，your eyes are too heavy. You are________ asleep，and when you wake up you will ________nothing.You will forget everything. Now I am going to________slowly from one to five. One，two，three，four，five.

1.A. brains　　 B. senses　　 C. sights　　 D. minds

2.A. seeking　　 B. visiting　　 C. reaching　　 D. discovering

3.A. guess　　 B. know　　 C. feel　　 D. imagine

4.A. custom　　 B. habit　　 C. way　　 D. style

5.A. quickly　　 B. correctly　　 C. simply　　 D. neatly

6.A. required　　 B. expected　　 C. left　　 D. wished

7.A. funny　　 B. dull　　 C. silly　　 D. famous

8.A. thinking　　 B. trying　　 C. managing　　 D. hoping

9.A. discussed　　 B. learned　　 C. studied　　 D. researched

10.A. used　　 B. ought　　 C. had　　 D. seemed

11.A. making　　 B. finding　　 C. turning　　 D. letting

12.A. woke　　 B. sat　　 C. gave　　 D. got

13.A. lesson　　 B. dream　　 C. research　　 D. exercise

14.A. firmly　　 B. loudly　　 C. slowly　　 D. softly

15.A. everything　　 B. something　　 C. nothing　　 D. anything

16.A. head　　 B. feet　　 C. eyes　　 D. body

17.A. understand　　 B. repeat　　 C. take　　 D. believe

18.A. really　　 B. extremely　　 C. almost　　 D. actually

19.A. accept　　 B. receive　　 C. hear　　 D. remember

20.A. add　　 B. say　　 C. count　　 D. speak

高一英语完形填空中等难度题查看答案及解析

As an extraordinary year comes to an end, the TIME magazine is inviting readers to help the person who has most influenced the world.

A. defend　　 B. respect

C. inform　　 D. select

高一英语单项填空中等难度题查看答案及解析

Everybody should have some first aid ability,because accidents and medical emergencies can happen anywhere at any time.St John First Aid courses give you the knowledge and confidence to provide effective first aid whenever it is needed.

First Aid Level l

Ideal for anyone who wants to learn basic first aid or needs to renew their first aid qualification（资格）.Courses can be held at St John or your workplace.

Fee: $162 (include CST)

Duration: eight hours

First Aid Level 2

Include all course content from First Aid Level 1,plus an addition half day.Ideal for special first aiders,health and safety managers and anyone who needs a first aid qualification .

Fee: $ 235 (include GST)

Duration: 12hours

Pre - Hospital Emergency Care (PHEC)

Advanced training for first aiders who already hold unit standards 6400 and 6402.Ideal for people who require advanced first aid skills or a pre - hospital emergency care (PHEC) qualification for their work.

Fee: $635 (includes CST)

Duration: three days

Child First Aid

Ideal for parents,grandparents and other family caregivers.A recognized qualification for childcare workers.

Fee: $65 (includes CST)

Duration: four hours

Outdoor First Aid

First aid response to accidents and medical emergencies in the wilderness.For groups of eight or more.

Duration: one to two days depending on experience

Sports First Aid

First aid response for common sporting injuries and medical emergencies.Include ACC injury prevention advice.

Fee: $65 (includes GST)　 (If you are a trainer,you can get a 20% discount.)

Duration: eight hours

1.If you are going to camp,which course should you choose in advance（提前）?

A. Children First Aid.　　 B. Sports First Aid.

C. First Aid Levell.　　 D. Outdoor First Aid.

2.If you are a football coach,how much will your spend in learning first aid for sporting injuries and medical emergencies?

A. $162.　　 B. $78.

C. $65.　　 D. $52.

3.Pre - Hospital Emergency Care teaches people about　　　　 .

A. first aid in children　　 B. basic emergency care

C. advanced first aid skills　　 D. injury prevention methods

4.If you want to learn basic first,you need to　　　　 .

A. know a little first aid　　 B. take the course at St John

C. have a first aid qualification　　 D. spend 8 hours on the course

高一英语阅读理解中等难度题查看答案及解析

Most people agree that it’s important to have a sense of humour. Having the ability to laugh can help one overcome anxiety, and make better decisions in difficult situations. People with a well-developed sense of humour appear to be happier, and some are healthier as well. This suggests that having a sense of humour is good for you. Humourless people may find themselves being treated as a fool, and become anxious and upset.

A sense of humour also plays an important role in human relationships. However, not everyone has a sense of humour. People with developmental disabilities (发展性能力丧失) can sometimes have no sense of humour, or have a very strange one.

A number of factors affect a person’s sense of humour, with the age probably being the main one. Young children are often highly amused by simple jokes or shows, while teenagers prefer to enjoy the ironic (讽刺的) events. Educational level, culture, and religious faith also affect one’s sense of humour. While Christians, for example, may have a deep appreciation of jokes about the Bible, others may find them disrespectful.

Many people believe that a sense of humour is something that develops on its own, and that you cannot teach someone to understand why jokes, certain comments, situations or events are funny. However, things can be done to enhance one’s sense of humour. Children, for example, benefit from being told jokes and encouraged to laugh, although some children’s jokes might seem rather strange to adults. If you have children, try to encourage them to tell jokes and think about what makes things funny. And it will help them develop a sense of humour.

1.The purpose of the passage is to _______.

2.What does the underlined word in Paragraph 4 "enhance" probably mean?

3.According to the passage, which of the following doesn’t influence one’s sense of humour?

高一英语阅读理解困难题查看答案及解析

Reasons to Consider Learning a Second Language

In our current society, having the ability to understand a second language is becoming increasingly valuable.1.. So take a look at why this is such a valuable skill to have.

You will be more competitive in the job market.

Businesses are always looking for people who are bilingual to be translators and to communicate with non-English speaker. Bilingual employees get paid 5%-20% more than people who only speak one language.2.

You can get credit for it during college.

If you study another language at a university, you will get credit (学分) toward graduating. You can startfrom the very beginning and learn a brand-new language or continue on from what you were studying in high school. Be aware, however, that college classes can move quickly and are considered to be difficult at times.3.

You can study abroad in a wider range of countries.

Studying abroad is an amazing experience that everyone should take advantage of. About 79% of Americans believe that students should seize the opportunity to spend a semester in another country.4. Learning another language can help expand the number of countries you can choose from.

Learning a language is a big commitment and is not easy by any means. If you don’t have the time to learn a language in school, there are still many, way to become proficient in another language. One program to look into is Livemocha which is a free online program where you can learn a foreign language.5.There are many other countries and written resources to consider as well.

A.This is only one suggestion.

B.So only take what you can handle.

C.Many people learn a language in order to get high marks.

D.There are a wide range of countries that you can choose from.

E.You can even go for a major in a language if you get far enough along.

F.Being able to communicate in more than one language can open countless doors.

G.Having knowledge of a second language can make you stand out in the job market.

高一英语七选五中等难度题查看答案及解析

There’s a reason humans have been building homes from wood for 10,000 years. It’s an excellent building material. But since it’s not transparent (透明的), we’re still in the habit of cutting windows in our houses.

But what if wood could be made transparent?

Researchers in Sweden have been trying to do just that. They’ve created a clear wood material they hope could one day be used for more energy-saving building.

“We chemically made wood transparent”, says Celine Montanari, a researcher at the KTH Royal Institute of Technology in Stockholm.

Montanari and her team took wood and removed its lignin(木质素), and filled the resulting micro holes with a special chemical. Then the wood looked rather like the frosted glass of a shower door. They took the material one step further, mixing it with polyethylene glycol, a material that melts at 80 degrees Fahrenheit. When it melts, it absorbs energy and becomes transparent, then releases energy when cooled. In theory, this means the new wood material could be used to make windows that absorb energy during the hot part of the day and release it into the home when it gets cold at night. It makes the new wood an even more eco-friendly material by keeping indoor temperatures constant.

This is not a new technique, says Mark Swihart, a professor at University at Buffalo. Materials that store and release energy are not new either. “The thing that seems to be new is their way of the energy storage.” Swihart says.

Using wood as a base material is attractive because it has strength that’s hard to reproduce in other materials at the same cost, Swihart says. Whether or not the new transparent wood will be successful will depend in large part on how cheaply it can be made, he says. It’s also difficult to get new material widely used by the building industry, as there are existing supply chains for things like glass.

Montanari and her team are currently looking at increasing the heat storage capacity(储热性能) of the transparent wood, for greater energy savings. They’re also studying how to increase production to an industrial scale(规模). They hope to have a product ready for market within five years.

1.What are researchers in Sweden trying to do?

A.Construct all-glass buildings.

B.Develop see-through wood.

C.Create new frosted glass for future buildings.

D.Figure out the reason people use wood for buildings.

2.How is the fifth paragraph developed?

A.By giving example.

B.By analyzing reasons.

C.By describing processes

D.By making comparisons.

3.What does Swihart say about the invention of Montanari and her team?

A.It costs too much

B.It uses a brand-new technique.

C.It will face uncertainty in the market.

D.It will be widely used in the building industry.

4.What are Montanari and her team doing with their new invention now?

A.Making it cheaper.

B.Improving its performance.

C.Putting it into production.

D.Building a supply chain.

高一英语阅读理解中等难度题查看答案及解析

People who have lost the ability to understand or use words due to brain damage are called aphasics（失语症患者）.Such patients can be extremely good at something else.From the changing expressions on speakers' faces and the tones of their voices,they can tell lies from truths.

Doctors studying the human brain have given a number of examples of this amazing power of aphasics.Some have even compared this power to that of a dog with an ability to find out the drugs hidden in the baggage.

Recently,scientists carried out tests to see if all that was said about aphasics was true.They studied a mixed group of people.Some were normal;others were aphasics.It was proved that the aphasics were far ahead of the normal people in recognizing false speeches—in most cases,the normal people were fooled by words,but the aphasics were not.

Some years ago,Dr.Oliver Sacks wrote in his book about his experiences with aphasics.He mentioned a particular case in a hospital.Some aphasics were watching the president giving a speech on TV.Since the president had been an actor earlier,making a good speech was no problem for him.He was trying to put his feelings into every word of his speech.

But his way of speaking had the opposite effect on the patients.They didn't seem to believe him.Instead,they burst into laughter.The aphasics knew that the president did not mean a word of what he was saying.He was lying!

Many doctors see aphasics as people who are not completely normal because they lack the ability to understand words.However,according to Dr.Sacks,they are more gifted than normal people.Normal people may get carried away by words.Aphasics seem to understand human expressions better,though they cannot understand words.

1.What is so surprising about aphasics?

A. They can fool other people.

B. They can tell whether people are lying.

C. They can understand language better.

D. They can find out the hidden drugs.

2.How did the scientists study aphasics?

A. By asking them to watch TV together.

B. By organizing them into acting groups.

C. By comparing them with normal people.

D. By giving them chances to speak on TV.

3.What do we learn from this text?

A. What ones says reflects how one feels.

B. Aphasics have richer feelings than others.

C. Normal people often tell lies in their speeches.

D. People poor at one thing can be good at another.

高一英语阅读理解中等难度题查看答案及解析