In the rush to get to school, you drop a piec...

In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat if you pick them up within 5 seconds after dropping them.

But you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria（细菌）to make you sick.

Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can become sick.

One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly.

But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile (瓦片), and carpet. They placed a piece of bread and a piece of bologna（一种大红肠）on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick.

So, forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. And this time, be careful not to drop it!

1.In which part of a newspaper can you most probably find this passage?

A. Culture                  B. Health                    C. Advertisement              D. Technology

2. After dropping a piece of toast, a person who follows the “5-second rule” will         .

A. throw away dirty toast immediately and go away

B. pick up the toast as quickly as possible and eat it

C. eat the toast within 5 seconds and feel pleased

D. get another piece of clean toast quickly and eat it

3.The scientists in South Carolina did the experiment to __________ .

A. see how quickly bacteria can pollute food

B. show that the 5-second rule is correct

C. see how harmful bacteria are to people’s health

D. show that bacteria grow at different speeds on different foods

高二英语阅读理解中等难度题查看答案及解析

In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat if you pick them up within 5 seconds after dropping them.

But you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria to make you sick.

Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can become sick.

One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly.

But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile (瓦片), and carpet. They placed a piece of bread and a piece of bologna（一种大红肠）on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick.

So, forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. And this time, be careful not to drop it!

1.In which part of a newspaper can you most probably find this passage?

A．Culture.　 B．Health.

C．Advertisement.　 D．Technology.

2.After dropping a piece of toast, a person who follows the “5-second rule” will______.

A. throw away dirty toast immediately and go away

B. pick up the toast as quickly as possible and eat it

C. eat the toast within 5 seconds and feel pleased

D. get another piece of clean toast quickly and eat it

3. The scientists in South Carolina did the experiment to ______.

A. see how quickly bacteria can pollute food

B. show that the 5-second rule is correct

C. see how harmful bacteria are to people’s health

D. show that bacteria grow at different speeds on different foods

高二英语阅读理解中等难度题查看答案及解析

阅读下面短文并回答问题，然后将答案写到答题卡相应的位置上（请注意问题后的词数要求）。

[1]Oops! In your rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat，if you pick them up within 5 seconds of dropping them. But you might want to think again. Scientists now say that 5 seconds are all it takes for foods to become contaminated with enough bacteria to make you sick.

　[2]Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If we eat foods on which these bacteria are growing, we can become sick. One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Earlier this year, 370 people became sick after eating peanut butter that had been contaminated with Salmonella at the manufacturing factory. Salmonella are often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods carefully.

　[3]Being a good housekeeper is another good way to prevent infection. If household surfaces aren’t washed thoroughly, they can support Salmonella for weeks. A team of scientists at Clemson University in South Carolina have tested the 5-second rule, using sandwich ingredients. First, they placed a known amount of Salmonella cells on three surfaces: wood, tile, and carpet. They then placed a slice of bread and a slice of bologna(博洛尼亚大红肠) on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and bologna picked up enough bacteria to make you sick.

[4]So forget the 5-second rule. If your toast lands on the floor, throw it away. Stick a fresh slice of bread in the toaster. And this time, be careful not to drop it!

1.What is the “5-second rule” mentioned in the first paragraph? (no more than 18 words)

2.Why is it important for us to cook food carefully?(no more than 5 words)

3.What advice is given to prevent infection in the last paragraph? (no more than 10 words)

4.Why did the scientists at Clemson University carry out that test? (no more than 15 words.)

5.What is the author’s attitude towards the 5-second rule? (one word)

高二英语其他题中等难度题查看答案及解析

You may ride on your bicycle in a rush to get to school every morning. You may fight to get a bit of space on a bus or in the subway. You may also watch taxis crawl their way through traffic jams.

No matter where you are, all big cities around the world have traffic jams these days. But although they all have their problems, many cities also have a type of transport that has become a cultural icon (文化标识)．

In London to avoid the traffic above ground, people use the “underground”，also called the “tube”. The city has the oldest and most complicated underground railway system in the world and is the pride of many Londoners. With 12 lines and 275 stations across the city, the tube, is normally the quickest and easiest way of getting around London. In London, you are never far from a tube station.

New York is famous for its yellow cabs. They serve as a quick and easy way of getting across Manhattan, where the subway doesn't take you everywhere. Stopping a cab is easy; just stick out your arm like you do in any city. But，with over 12,000 yellow cabs in the Big Apple, they also cause traffic jams.

Since 1873 when the first cable car started public service, the slow and noisy vehicle has been a symbol of San Francisco. Although once damaged by a serious earthquake and challenged (挑战) by cars, it is never caught in traffic jams and provides better views than the subway.

But there are no such symbols in Los Angeles. If you visit you'd better rent a car. The city's public transportation is terrible.　 It can take hours to get across town by bus. The subway covers just a small part of the city center. The light rail line only runs between the Long Beach hotel area and the city center. That's why Angelenos love their private cars more than any other people in the world.

1.If you have a chance to London and want to avoid the traffic jams, you'd better ________.

A. ride vehicle　　 B. take a taxi

C. use underground　　 D. rent a car

2.People in Los Angeles like their private cars because of the following EXCEPT that ________.

A. the public transportation is terrible

B. it is not expensive to take a private car

C. the underground railway covers a small part of the city center

D. people have to spend hours getting across the Los Angeles by bus

3.The passage mainly tells us ________.

A. how big cities in the foreign countries keep on moving

B. how people in the city avoid the traffic jams

C. why London has the oldest and complicated subway

D. why people call New York the Big Apple

高二英语阅读理解困难题查看答案及解析

You may ride on your bicycle in a rush to get to school every morning.1. You may also watch taxis crawl their way through traffic jams.

No matter where you are, all big cities around the world have traffic jams these days. But although they all have their problems, many cities also have a type of transport (交通) that has become a cultural icon (圣像).

In London, to avoid the traffic above ground, people use the "underground",also called the"tube".2. It brings a lot of convenience to its own residents and visitors and it is the pride of many Londoners. With 12 lines and 275 stations across the city, the tube, is normally the quickest and easiest way of getting around London. In London, you are never far from a tube station.

3.They serve as a quick and easy way of getting across Manhattan, where the subway doesn't take you everywhere. Stopping a cab is easy; just stick out your arm like you do in any city. But, with over 12,000 yellow cabs in the Big Apple, they also cause traffic jams.

Since 1873 when the first cable car started public service, the slow and noisy vehicle has been a symbol of San Francisco. Although once damaged by a serious earthquake and challenged by cars, it is never caught in traffic jams and provides better views than the subway. 4.

But there are no such symbols in Los Angeles. If you visit you' d better rent a car. 5.It can take hours to get across town by bus. The subway covers just a small part of the city center. The light rail line only runs between the Long Beach hotel area and the city center. That' s why Angelenos love their private cars more than any other people in the world.

A. No wonder it’s always the first choice for commuters and tourists there.

B. You may fight to get a bit of space on a bus or on the subway.

C. The city has the oldest and most complicated underground railway system in the world.

D. The city' s public transportation is terrible.

E. At this time every day, bike rides will be the most reliable means of transportation.

F. New York is famous for its yellow cabs.

G.There will always be one for you to every corner, fast and no worry.

高二英语七选五中等难度题查看答案及解析

You're rushing to work and a man ahead of you falls down on the sidewalk. Do you stop to help? In a study of by-standers, it was found that some people keep on walking.

"There is a tendency to decide that no action is needed," says a psychologist, "In order to take action, you have to work against them." Here are some common thoughts that stop you from helping.

●Why should I be the one? I'm probably not the most able person in this crowd. You might think someone older or with more medical knowledge should offer assistance.

●What if he doesn't really need my help? The fear of embarrassment is powerful; no one wants to risk looking foolish in front of others.

●No one else looks concerned. We can follow the people around us, but most people tend to hold back their emotions in public.

"If you spot trouble and find yourself explaining inaction, force yourself to stop and figure out the situation instead of walking on," says the psychologist. "Then retry to involve other people; you don't have to take on the entire responsibility of being helpful. Sometimes it's just a matter of turning to the person next to you and saying, 'It looks like we should do something.' Or asking someone if an ambulance has been called and, if not, to call for one. Once you take action, most people will follow you."

1.Which is NOT the common thought that stops you from helping others?

A. I'm not the very capable person.　　　　

B. It looks like we should do something.

C. No one else is concerned.　　 　　　　　　　

D. He doesn't really need my help.

2.In order to offer your timely help, you need to　　　　　　　　　　 .

A. go directly to the police station

B. get along well with the passers-by who spot the trouble

C. ask others for help and call the police

D. work against the first thoughts that stop you from offering help

3.The main purpose of the passage is to tell readers　　　　　　　　　　　　　　　　　　　　 .

A. to give others a hand　　　　　　　　　　         B. to be more able

C. to explain their inaction　　　　　　　　　　     D. to evaluate the situation

高二英语阅读理解中等难度题查看答案及解析

You're rushing to work and a man ahead of you falls down on the sidewalk. Do you stop to help? In a study of by-standers, it was found that some people keep on walking.

"There is a tendency to decide that no action is needed," says a psychologist, "In order to take action, you have to work against them." Here are some common thoughts that stop you from helping.

●Why should I be the one? I'm probably not the most able person in this crowd. You might think someone older or with more medical knowledge should offer assistance.

●What if he doesn't really need my help? The fear of embarrassment is powerful; no one wants to risk looking foolish in front of others.

●No one else looks concerned. We can follow the people around us, but most people tend to hold back their emotions in public.

"If you spot trouble and find yourself explaining inaction, force yourself to stop and evaluate the situation instead of walking on," says the psychologist. "Then retry to involve other people; you don't have to take on the entire responsibility of being helpful. Sometimes it's just a matter of turning to the person next to you and saying, 'It looks like we should do something.' Or asking someone if an ambulance has been called and, if not, to call for one. Once you take action, most people will follow you."

1.According to a study of by-standers, what will some people do when a man ahead falls down on the sidewalk?

A. They will call 110.　　　

B. They will offer help.

C. They will go on walking.

D. They will laugh at him.

2. Which is NOT the common thought that stops you from helping others?

A. I'm not the very capable person.　　

B. It looks like we should do something.

C. No one else is concerned.　　

D. He doesn't really need my help.

3. In order to offer your timely help, you need to　　 .

A. go directly to the police station

B. get along well with the passers-by who spot the trouble

C. ask others for help and call the police

D. work against the first thoughts that stop you from offering help

4.The main purpose of the passage is to tell readers　　 .

A. to give others a hand

B. to be more able

C. to explain their inaction　　

D. to evaluate the situation

高二英语阅读理解中等难度题查看答案及解析

________ his school uniform in the stadium, David rushed back to get it and an acquaintance had taken it away.

A. To lose　　 B. Lost

C. Having lost　　 D. Losing

高二英语单项填空中等难度题查看答案及解析

On the first day of school I brought my camera to school. I gave the students a piece of 8 ×11 cardboard(纸板), and asked them to write their names on both sides. As they finished, I asked them to get into groups of three to four students and took photographs of them holding their name cards.

After school, I developed the film and printed two sets of photos. That evening, I started to match the names with the faces. I kept one set of pictures at home for about a week so that I could review their names each night. On the second day of school, I put up the other set of photos as a bulletin board, with a title such as "Presenting Room 108, ..."

The kids loved it! After I had learned all of their names I brought the second set back to school and stuck them onto an 8 ×11 sheet of paper. I placed it in the classroom for other teachers.

The cardboard name cards that were made on the first day were collected and put on a shelf. From time to time, they were given back to the students and placed on their desks so that guests or supply teachers could identify all of the students.

I’ve been doing this with my grade 7 students for the last nine years and they liked it. It’s fun to bring the photos out again at the end of the school year to see how much they have all changed in ten months.

1.The cardboards were used to ________.

A. play some kind of game

B. decorate the classroom

C. identify the students

D. print the photos on

2.The writer of the passage might be a ________.

A. head teacher 　 B. monitor

C. photographer　 　　 D. supply teacher

3.Why did the writer leave the second set of the photos at home?

A. To memorize the students’ names at home.

B. To make cardboard name cards for supply teachers.

C. To make a bulletin board in the classroom.

D. To match the students’ names with their faces

4.Which of the following is TRUE according to the passage?

A. The students didn’t have to use the cardboard name cards to identify each other.

B. Other teachers couldn’t identify the students without the cardboard name cards.

C. The writer kept the cardboard name cards as a souvenir for nine years.

D. The guests will know the students’ names by reading the cardboard name cards.

高二英语阅读理解中等难度题查看答案及解析

Why did the woman get home in a hurry?

A. To avoid rush hour.　　 B. To avoid a ticket.　　 C. To get rid of the police.

高二英语短对话简单题查看答案及解析