It is common knowledge that washing wool in h...

It is common knowledge that washing wool in hot water will make it________.

A.change B.shrink   C.slim       D.dissolve

高二英语单项填空简单题查看答案及解析

Expressions about water are almost as common as water itself．The expression to be in hot water is a very old expression．Hot water was used five hundred years ago to mean being in trouble．One story says it got that meaning from the custom of throwing extremely hot water down on enemies attacking a castle．

That no longer happens．But we still get into hot water．When we are in hot water, we are in trouble．It can be any kind of trouble-- serious or not so serious．A person who breaks a law can be in hot water with the police．A young boy can be in hot water with his mother if he walks in the house with dirty shoes．

Being in deep water is almost as the same as being in hot water．When you are in deep water, you are in a difficult position．

To keep your head above water is a colorful expression that means staying out of debt．A company seeks to keep its head above water during economic hard times．A man who loses his job tries to keep his head above water until he finds a new job．

Water over the dam is another expression about a past event．It is something that is finished．It can’t be changed The expression comes from the idea that water that has flowed over a dam can’t be brought back again．

Another common expression, "to hold water," is about the strength or weakness of an idea or opinion that you may be arguing about.  It probably comes from a way of testing the condition of a container.  If it can hold water, it is strong and has no holes in it. If your agrument can hold water, it is strong and does not have any holes.  If it does not hold water, then it is weak and not worth debating.

"Throwing cold water" also is an expression that deals with ideas or proposals. It means to not like an idea. For example, you want to buy a new car because the old one has some problems. But your wife "throws cold water" on the idea, because she says a new car costs too much.

1.If Robert says he is in deep water, we may guess________.

A．he is swimming under the water            B．he is tired of changing shoes

C．he nearly breaks a law.                         D．he faces a difficult choice

2.What can you say to your friend, Jane, who is troubled by a mistake she has made.

A．Keep your head above water                 B．Throw cold water

C．It is water over the dame                      D．It can hold water

3.If your argument doesn’t hold water, then it is________.

A．weak                  B．convincing           C．logical                 D．disappointing

4.The passage explains the origins of the following expression EXCEPT “________”.

A．to be in hot water                                B．to keep your head above water

C．water over the dame                            D．to hold water

5.Which of the following is the most probable title for this passage?

A．Water diving into the sea of terms          B．Water the most natural resource

C．About expressions                               D．About water

高二英语阅读理解中等难度题查看答案及解析

It’s common knowledge that the woman in Leonardo da Vinci’s most famous painting seems to look back at observers, following them with her eyes no matter where they stand in the room. But this common knowledge turns out wrong.

A new study finds that the woman in the painting is actually looking out at an angle that’s 15. 4 degrees off to the observer’s right-well outside of the range that people normally believe when they think someone is looking right at them. In other words, said the study author, Horstmann, “She’s not looking at you. “ This is somewhat ironic, because the entire phenomenon of a person’s gaze (凝视) in a photograph or painting seeming to follow the viewer is called the “Mona Lisa effect” . That effect is absolutely real, Horstmann said. If a person is illustrated or photographed looking straight ahead, even people viewing the portrait from an angle will feel they are being looked at. As long as the angle of the person’s gaze is no more than about 5 degrees off to either side, the Mona Lisa effect occurs.

This is important for human interaction with on-screen characters. If you want someone off to the right side of a room to feel that a person on-screen is looking at him or her, you don’t cut the gaze of the character to that side-surprisingly, doing so would make an observer feel like the character isn’t looking at anyone in the room at all. Instead, you keep the gaze straight ahead.

Horstmann and his co-author were studying this effect for its application in the creation of artificial-intelligence avatars(虚拟头像) when Horstmann took a long look at the “Mona Lisa” and realized she wasn’t looking at him.

To make sure it wasn’t just him, the researchers asked 24 people to view images of the “Mona Lisa” on a computer screen. They set a ruler between the viewer and the screen and asked the participants to note which number on the ruler intersected(和……相交) Mona Lisa’s gaze. To calculate the angle of Mona Lisa’s gaze as she looked at the viewer, they moved the ruler farther from or closer to the screen during the study. Consistently, the researchers found, participants judged that the woman in the “Mona Lisa” portrait was not looking straight at them, but slightly off to their right.

So why do people repeat the belief that her eyes seem to follow the viewer? Horstmann isn’t sure. It’s possible, he said, that people have the desire to be looked at, so they think the woman is looking straight at them. Or maybe the people who first coined the term “Mona Lisa effect” just thought it was a cool name.

1.It is generally believed that the woman in the painting “Mona Lisa”___________.

A.attracts the viewers to look back

B.seems mysterious because of her eyes

C.fixes her eyes on the back of the viewers

D.looks at the viewers wherever they stand

2.What gaze range in a painting will cause the Mona Lisa effect?

A. B. C. D.

3.The experiment involving 24 people was conducted to______.

A.confirm Horstmann’s belief

B.create artificial-intelligence avatars

C.calculate the angle of Mona Lisa’s gaze

D.explain how the Mona Lisa effect can be applied

4.What can we learn from the passage?

A.Horstmann thinks it’s cool to coin the term “Mona Lisa effect”.

B.The Mona Lisa effect contributes to the creation of artificial intelligence.

C.Feeling being gazed at by Mona Lisa may be caused by the desire for attention.

D.The position of the ruler in the experiment will influence the viewers’ judgement.

高二英语阅读理解困难题查看答案及解析

US scientists say they have poured cold water on the theory that washing hands with hot water kills more germs (细菌) than unheated water. The small study of 20 people found using water at 15℃ (59F) left hands as clean as water heated to 38℃ (100F).

National Health Service (NHS) recommends that people wash their hands in either cold or warm water. In this study, scientists at Rutgers University — New Brunswick wanted to find out if popular assumptions about the benefits of warm or hot water and official guidance on hot water — given to the food industry in the US — held true. They asked 20 people to wash their hands 20 times each with water that was 15℃ (59F), 26℃ (79F) or 38 degrees (100F). Volunteers were also asked to experiment with varying amounts of soap. Before they started the tests, their hands were covered in harmless bugs. Researchers say there was no difference in the amount of bugs removed as the temperature of the water or the amount of soap changed.

Prof Donald Schaffner said, “People need to feel comfortable when they are washing their hands but as far as effectiveness goes, this study shows us that the temperature of the water used did not matter.”

However, the researchers accept their study is small and say more extensive work is needed to determine the best ways to remove harmful bacteria.

In the UK, NHS experts say people can use cold or hot water to wash their hands. They say hands should be washed for at least 20 seconds and stress the importance of using enough soap to cover the whole surface of the hands. Their guidance focuses on rubbing hands together in various ways to make sure each surface of each hand is clean.

1.What does the underlined phrase “poured cold water” in Paragraph 1 probably mean?

A. Proved.

B. Contradicted.

C. Created.

D. Accepted.

2.After they washed their hands with either hot or cold water, _______.

A. volunteers all didn't feel very comfortable

B. volunteers all talked about American food industry

C. volunteers still had much germ on their hands

D. volunteers nearly had the same amount of germ removed

3.How do researchers feel about their study?

A. It is popular.

B. It is convincing.

C. It is incomplete.

D. It is abstract.

4.Which of the following is the best title for the text?

A. Using Cold Water Instead of Hot Water

B. How to Use Cold Water to Wash Hands

C. It’s Better to Wash Hands in Cold Water

D. Washing Hands in Cold Water as Good as in Hot Water

高二英语阅读理解中等难度题查看答案及解析

Why do Chinese like drinking hot water?

In Western countries, drinking hot water isn't common. 1.

2..A British man, who has been in Beijing for over five years, visited　 local cafe during his trip in England. He said to a friendly waitress in a classy British accent, “Can I have a glass of hot water, please?” The waitress' eyes widened. She was so confused. “To...to...to drink?” she replied. Eventually, the man received the steaming liquid but felt cold stares from every corner of the cafe. Westerners are as curious about why Chinese people drink hot water as Chinese are curious about why Westerners drink cold water.

This cultural difference is not a simple issue, but related to history, culture, and science. When did Chinese start to drink hot water?3.. Archaeologists found pottery dating to 20,000 years ago. They believe the pottery was used to cook food and heat water.

Drinking hot water is considered to be healthier among Chinese people.4. Bodies’ normal temperature is 37℃, which keeps the smooth flow of blood cycle and the regular operation of the body's organs. Cold water has the effect of slowing.

5.If the body is too weak to warm up, some syndromes（症状）may present themselves, like cold hands and feet, Raynaud's phenomenon(the fingers turning white after exposure to low temperature or emotional events),a weak desire to eat food, poor digestion or body pain.

A. The answer lies in history.

B. There is a story online.

C. It is easy to provide an accurate answer.

D. Westerners often drink with ice almost every day.

E. Drinking cold water leads to an imbalance of temperature inside a body.

F. Hot water was reserved for the pregnant women, the elderly and the sick.

G. When drinking cold water, you will consume more energy to warm up.

高二英语七选五简单题查看答案及解析

It is said that ____ wool produced in Australia is of ____ high quality.

A．/ ; /              B．the ; /            C．the ; a            D．the ; the

高二英语单项填空中等难度题查看答案及解析

It is said that ________ wool product in Australia is of _________ high quality.

A．/; /              B．the; /             C．the; a            D．the; the

高二英语单项填空中等难度题查看答案及解析

We hope that you can buy this material because it_____ well.

高二英语单项填空简单题查看答案及解析

The principle of the heating system in this building is that pipes ________ hot water from the boiler to every part of it.

A. consume                B. conduct             C. transmit                     D. convey

高二英语单项填空简单题查看答案及解析

Tea is one of the most popular 1.(drink) in the world. You make it by pouring hot water over the 2.(dry) leaves of a tea plant. For centuries people believed that tea could cure illnesses, and they used it as medicine. Today scientists know that tea contains chemicals that prevent cells from 3.(die). Most teas have caffeine in them, a substance that makes you feel more active. Some people have problems drinking tea because it can cause 4.(sleep).

The tea plant grows best in tropical and temperate places 5. rain falls throughout the year. Tea plants can be grown from sea level 6. about 2,000 meters above sea level, but the best quality grows in higher regions.

Tea 7.(come) from the leaves and buds of tea plants. Wild plants can be up to 9 meters high but on tea plantations they 8.(cut) back to a bush of about a meter in height so that workers can pull the leaves 9.(easy). It takes a plant tree to five years before it is ready for picking.

A picker can harvest about 20 kg of tea a day. On large tea plantations the leaves are harvested by machines, 10. the quality of tea is higher when the leaves are picked by hand.

高二英语语法填空中等难度题查看答案及解析