Most birds find it safe to sleep in the trees...

Most birds find it safe to sleep in the trees, but ______ they have eggs or young chicks, they don’t use a nest.

A. why           B. how              C. where                D. unless

高三英语单项填空简单题查看答案及解析

Most birds find it safe to sleep in the trees,but_______they have eggs or young chicks,they don’t use a nest.

A.why                                   B.how

C.unless                                    D.where

高三英语单项填空中等难度题查看答案及解析

Bees in a colony work with each other to gather food, and they try to find the most nectar (花蜜)in the least amount of time possible. A small number of bees work as searchers, but when a good flower patch (花丛) is found, how do they tell other bees where to find it?

Bees communicate flower location using special dances inside the hive, where bees live. One bee dances while the other bees watch. The dancing bee smells like the flower patch, and also gives the watching bees a taste of the nectar she has gathered. Smell and taste helps other bees find the correct flower patch. Bees use two different kinds of dances to communicate information: the waggle (摇摆) dance and the circle dance.

Waggle dance

The waggle dance tells the watching bees two things about a flower patch's location: the distance and the direction away from the hive.

A. Distance

The dancing bee waggles back and forth as she moves forward in a straight line, then circlesaround to repeat the dance. The length of the middle line, called the waggle run, shows roughly how far it is to the flower patch.

B. Direction

Bees know which way is up and which way is down inside their hive, and they use this to show direction. How? Bees dance with the waggle run at a specific angle away from straight up. Outside the hive, bees look at the position of the sun, and fly at the same angle away from the sun.

Circle dance

The circle dance tells the watching bees only one thing about the flower patch’s location: that it is somewhere close to the hive.

In this dance, the bee walks in a circle, turns around, then walks the same circle in the opposite direction. Sometimes, the bee includes a little waggle as she’s turning around. The duration of this waggle is thought to indicate the quality of the flower patch.

1.Why does the searcher give the watching bees a taste of the nectar?

A. To inform them of the distance of the flower.

B. To celebrate her success of finding the nectar.

C. To motivate them to collect the nectar.

D. To ensure the bees find the right patch.

2.Which of the following statements is TRUE about the dances?

A. The searcher’s waggle means little during the circle dance.

B. The waggle dance indicates the direction of the flower patch.

C. The waggle dance shows precisely how far the flower patch is.

D. The quality of the flower patch is not shown in the circle dance.

3.If the searcher dances inside the hive in this way(see the right picture), which of the following is the WRONG flying direction for the other bees?

A. 　　 B. 　　 C. 　　 D.

高三英语阅读理解中等难度题查看答案及解析

Where have all the boys gone？You may be able to find them in the gym, at work or hanging out, but there’s one important place where boys are under­represented, and the problem seems to be getting worse. These days, at high school graduation ceremonies, there are a lot more girls than boys.

In fact, every year, 10 percent more girls graduate from high school than boys. “I think that there’s a tendency to focus on boys as problems at this point, rather than recognize that boys have problems,” says Joanne Max, PhD. Experts say the problems start in grade school, where there’s often an emphasis on sports instead of reading, for example. “I think that with boys there’s some idea that it’s not masculine(男子汉的)to read,” says Rob Jenkins, an English professor.

There’s also a shortage of male teachers as role models. “I think boys need role models, so if you’re a boy and you don’t have a dad in your home and then you have one male teacher and it’s your athletic coach then I don’t think you have a message that education is very important,” says Carol Carter, another expert. In addition, classrooms often have too little activity and too much passive listening, which is not conducive(有益的)to boys’  learning.

Experts say parents can fight back in many ways. Read to your sons early and often; show by your actions that you value their education. Ask them about their schoolwork, offer help, drop by their classroom and finally, appeal to their competitive spirit: challenge them to do better and help them understand that their future depends on it.

1.The underlined part “one important place” in Paragraph 1 refers to “______”.

A. classrooms                         B. factories

C. high school graduation ceremonies      D. gyms

2.According to the passage，boys have the problem that they think ______.

A. reading is more important than sports

B. it is shameful for boys to read

C. boys should not work as a teacher

D. boys lack the gift for reading

3.Carol Carter’s words implied that ______.

A. parents play an important role in education

B. athletic coaches contribute a lot to education

C. lack of male teachers affects boys’ attitudes to school work

D. classrooms lack enough activities that are suitable for boys

4.According to experts，parents should do the following except ______.

A．often read to their sons when they are young

B．keep an eye on their sons’ studies at school

C．encourage their sons to compete with others

D. prevent their sons from taking part in sports

高三英语阅读理解中等难度题查看答案及解析

Where have all the boys gone？You may be able to find them in the gym, at work or hanging out, but there’s one important place where boys are under­represented, and the problem seems to be getting worse. These days, at high school graduation ceremonies, there are a lot more girls than boys.

In fact, every year, 10 percent more girls graduate from high school than boys. “I think that there’s a tendency to focus on boys as problems at this point, rather than recognize that boys have problems,” says Joanne Max, PhD. Experts say the problems start in grade school, where there’s often an emphasis on sports instead of reading, for example. “I think that with boys there’s some idea that it’s not masculine(男子汉的)to read,” says Rob Jenkins, an English professor.

There’s also a shortage of male teachers as role models. “I think boys need role models, so if you’re a boy and you don’t have a dad in your home and then you have one male teacher and it’s your athletic coach then I don’t think you have a message that education is very important,” says Carol Carter, another expert. In addition, classrooms often have too little activity and too much passive listening, which is not conducive(有益的)to boys’  learning.

Experts say parents can fight back in many ways. Read to your sons early and often; show by your actions that you value their education. Ask them about their schoolwork, offer help, drop by their classroom and finally, appeal to their competitive spirit: challenge them to do better and help them understand that their future depends on it.

1.The underlined part “one important place” in Paragraph 1 refers to “______”.

A. classrooms                         B. factories

C. high school graduation ceremonies      D. gyms

2.According to the passage，boys have the problem that they think ______.

A. reading is more important than sports

B. it is shameful for boys to read

C. boys should not work as a teacher

D. boys lack the gift for reading

3.Carol Carter’s words implied that ______.

A. parents play an important role in education

B. athletic coaches contribute a lot to education

C. lack of male teachers affects boys’ attitudes to school work

D. classrooms lack enough activities that are suitable for boys

4. According to experts，parents should do the following except ______.

A．often read to their sons when they are young

B．keep an eye on their sons’ studies at school

C．encourage their sons to compete with others

D. prevent their sons from taking part in sports

高三英语阅读理解中等难度题查看答案及解析

Apparently，we are safe neither at home nor in the business office．We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects．These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house．They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines．As the water is moving．these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

A．The air we breathe in is harmful.

B．The water in everyday use is unsafe.

C．Chemicals are added to the drinking water.

D．Chemicals are released in the running water.

2.In Paragraph 2, the underlined sentence means that________.

A．bathing should be done with caution

B．homes and offices should be aired often

C．any pollution should be taken into consideration

D．we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

A．To call on us to guard our water.

B．To show us that no place is like home.

C．To make us aware of the pollution around us.

D．To argue that neither homes nor offices are safe.

高三英语阅读理解中等难度题查看答案及解析

Apparently，we are safe neither at home nor in the business office.We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

　Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

　These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

　We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

　A.The air we breathe in is harmful.

B.Chemicals are released in the running water.

C.Chemicals are added to the drinking water.

　D. The water in everyday use is unsafe.

2..In Paragraph 2, the underlined sentence means that .

　A. homes and offices should be aired often

　B. any pollution should be taken into consideration

　C. bathing should be done with caution

　D.we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

　A.To call on us to guard our water.

　B.To show us that no place is like home.

　C.To make us aware of the pollution around us.

　D.To argue that neither homes nor offices are safe.

高三英语阅读理解简单题查看答案及解析

You wait in a long queue in the supermarket, but when it’s finally your turn to pay, you can’t find enough money in your purse. 1. While you are bending down to look for them, the people behind you are getting angry. The cashier is pounding her fingers impatiently on the counter.

2. But the good news is: scientists have thought of a way to make queues shorter and paying for things easier. They have invented an eye scanner. In the future, when you pay for food at the supermarket, an eye scanner will take a picture of your eyes and a computer will identify you. 3.

Students at Venerable Bede School, England, have already got an eye scanner in their cafeteria. After the students choose the food they want, the scanner looks for their information and sends a list of the food to their parents. 4. Also, parents pay for the meals at the end of the week, so the students don’t have to take money to school and wait in long queues to pay for their lunch.

If all shops had eye scanners, shopping would be easier. 5. So, it seems that it will be a while before most of us get our eyes scanned at the cashier.

A. Sometimes shopping can be unpleasant.

B. You take out your credit cards, but they fall on the floor.

C. If students aren’t eating a healthy diet, their parents will know.

D. Stores are trying several new ways to get shoppers to spend more.

E. Parents are urging the government to introduce better security safeguards.

F. However, eye scanners are very expensive and many shops can’t afford them.

G. As soon as the machine finds your information, it will send it to your bank which pays for your food automatically.

高三英语七选五中等难度题查看答案及解析

You wait in a long queue in the supermarket, but when it’s finally your turn to pay, you can’t find enough money in your purse. 1. While you are bending down to look for them, the people behind you are getting angry. The cashier is pounding her fingers impatiently on the counter.

2. But the good news is: scientists have thought of a way to make queues shorter and paying for things easier. They have invented an eye scanner. In the future, when you pay for food at the supermarket, an eye scanner will take a picture of your eyes and a computer will identify you. 3.

Students at Venerable Bede School, England, have already got an eye scanner in their cafeteria. After the students choose the food they want, the scanner looks for their information and sends a list of the food to their parents. 4. Also, parents pay for the meals at the end of the week, so the students don’t have to take money to school and wait in long queues to pay for their lunch.

If all shops had eye scanners, shopping would be easier. 5. So, it seems that it will be a while before most of us get our eyes scanned at the cashier.

A. Sometimes shopping can be unpleasant.

B. You take out your credit cards, but they fall on the floor.

C. If students aren’t eating a healthy diet, their parents will know.

D. Stores are trying several new ways to get shoppers to spend more.

E. Parents are urging the government to introduce better security safeguards.

F. However, eye scanners are very expensive and many shops can’t afford them.

G. As soon as the machine finds your information, it will send it to your bank which pays for your food automatically.

高三英语七选五中等难度题查看答案及解析

If you need to spend time on the road，it’s important to find ways to keep safe on your feet. Don’t suppose it's your right of way. Yes, you might be crossing at the right place, at the right time, within the crosswalk area, but you are still exposed to danger. It could be a distracted driver, or a cyclist with a loose sense of traffic rules, so you could still get hurt. You can be in the right legally, but that won’t be much help when you're in the hospital.

Follow pedestrian signals. Just as drivers aren’t supposed to speed up to beat a light when crossing through an intersection, pedestrians need to take the same care when obeying their own signals. If the hand is flashing and the countdown is into single digits (数字），stay where you are. Trying to outrun the flashing hand is unsafe，especially as cars try to clear the intersection before the light turns red.

Give drivers enough time to stop when crossing. Don’t suppose that drivers will jam on their brakes when you hit the crosswalk signals. Some provinces, such as Alberta, issue (发出）a ticket if you don’t give drivers enough time to brake.

Cross quickly. Once you’ve followed all of the other rules, and it is safe to cross the street, don’t then just wander along in front of six lanes (车道）of traffic. There’s no need to run or jog, but respect the drivers who respected you enough to stop for you.

1.Who is the text intended for?

A. Drivers.　　 　　 B. Cyclists. 　 C. Police.　　 D. Pedestrians.

2.What does the underlined word “distracted” in Paragraph 2 mean?

A. Considerate.　　 B. Strange.

C. Kind-hearted.　 D. Absent-minded.

3. In what case would pedestrians in Alberta be fined?

A. Racing against time with drivers.

B. Following crosswalk signals.

C. Crossing the crosswalk area.

D. Walking outside six lanes.

4. What can be a suitable title for the text?

A. Rules for Traffic Police

B. Tips to Keep Safe on Your Feet

C. Things Every Driver Should Know

D. Signals for Both Pedestrians and Drivers

高三英语阅读理解中等难度题查看答案及解析