4. It used to ______ that humans and animals ...

4. It used to ______ that humans and animals were different and had little in common.

高三英语单项填空简单题查看答案及解析

The human mind can 　　　　 many tasks that other animals cannot, like using language and judging what other people are thinking．

A． carry out　　　　　 B． take out　　　　　　 C． put out　　　　　　 D． bring out

高三英语单项填空中等难度题查看答案及解析

He had collected plenty of historical evidence, ________ proved that humans used to have different sleeping patterns.

A．that              B．which            C．it                D．what

高三英语单项填空中等难度题查看答案及解析

Meyer and his team were the first ______ how the disease spreads from animals to humans.

A．showing B．show

C．to show D．shown

高三英语单项填空中等难度题查看答案及解析

We humans are sweet on sugar. That makes sense. All animals need sugar to live. It ' s the fuel that powers our cells. So it' s not surprising that we ' re born to want the sweet stuff.

Sugar stores the sun' s energy like a battery. After a meal,your body breaks down foods into their building blocks. It uses some sugars for energy right away. The rest get stored for the body to break down later. It ' s a myth that sugar makes you extremely excited, but having a sugary snack can give you a quick burst of energy. That ' s because the sugars in sweet foods are easy for your body to turn into fuel. When you eat other kinds of foods,like vegetables, it takes longer for your body to break the sugars down.

These days it' s easy to find sweet snacks. Sodas, candy, cakes and even foods that seem healthy , such as yogurt,can be packed with sugar. Food makers add sugar,because they know that to humans, sweet makes everything taste better. Americans eat about 20 teaspoons of extra sugar everyday. That' s way more than what is good for us.

Eating too much sugar can cause more than a stomach-ache. It can make people overweight, decay the teeth and even cause diabetes. However, experts aren ' t worried about naturally sweet foods- the problem is added sugar. So go ahead and enjoy a sweet apple or even a sugar-rich carrot that are also full of vitamins and other good stuff.

Even cake　 is great once in a while , as long as you don ' t overdo it. After all, no one wants life to be dull. And your body needs its fuel!

1.The first two paragraphs are mainly developed by _'

A. cause and effect.　　 B. problem and solution.

C. giving examples .　　 D. making comparisons.

2.People may be tncked into eating too much sugar because　 　　　　　　 .

A. no one wants life to be boring.

B. we ' re born to want the sweet stuff.

C. so-called healthy food can be packed with sugar.

D. sugar is the fuel for the plants and animals on the Earth.

3.What does the author want to stress in Para. 4?

A. We' d better say no to sweet foods.

B. Experts are worried about added sugar.

C. Eating too much sugar is bad for our health.

D. We ' d better consume sugar from natural sources.

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

A. Sugar Is Everywhere.　　 B. Sugar Brings Happiness.

C. Why Does Sugar Taste So good?　　 D. Why Does Sugar Make Us Fat?

高三英语阅读理解中等难度题查看答案及解析

It never occurred to humans until the mid-l990s ________ some animals can be cloned.

高三英语单项填空简单题查看答案及解析

It is the superior intelligence and the use of language that distinguish man　　 ________　 the other animals.

A.with    B．from

C．between    D．among

高三英语单项填空简单题查看答案及解析

Funny animals is a term used in comics and animated cartoons __________ the animals are given human characteristics.

A．where            B．that              C．why              D．as

高三英语单项填空简单题查看答案及解析

ANIMALS have always been used to represent certain human characteristics. Countries also use animals as symbols. From eagles to lions, many countries use an animal to show its national spirit and character.

The image of an eagle is on the US President’s flag, and on the one-dollar bill. The bald eagle is a large, powerful, brown bird with a white head and tail. The term “bald” does not mean that this bird lacks feathers. Instead, it comes from the old word piebald, that menas, “marked with white”.

The US declared that the eagle was its national bird in 1782. It was chosen because of “its long life, great strength, and noble looks”.

A few eagles have even become American heroes. An eagle named “Old Abe”, the mascot of a Wisconsin troop of soldiers during the Civil War, traveled 14,000 miles with its men. He was often shot at by the enemy, but survived 42 battles.

But, one of the Founding Fathers, Benjamin Franklin didn’t agree with the choice. “The bald eagle … is a bird of bad moral character, like those among men who live by robbing, he is generally poor, and often very messy,” he argued. Franklin wanted the turkey as the country’s national bird.

If Americans chose their national symbol deliberately, the symbol of England arose out of history.

King Herry Ⅰ(1068-1135) was a brave warrior but also wise. His appreciation for the rule of law earned him the nickname the Lion of Justice. He was the first English King to use a lion as a royal symbol, which is popularly known as the “king of the jungle”. By the year Richard Ⅰ, known as “The Lionheart” for his bravery, came to the throne in 1189, the famous Three Lions badge had been formed. Now it can be seen on the shirts of England’s sports teams.

Although people might not think of lions when they think of England, everyone knows about the Australian kangaroo. Legend has it that the kangaroo gets its name from an early meeting between local aborigines and white settlers. When asked by the Europeans what these strange-looking animals were, a native replied “kangaroo”, meaning “I don’t understand you.”

The kangaroo is an individualistic animal. Although it does gather in groups, the kangaroo is not a herd animal. If a group is attacked, individuals run off in different directions. Australians think the kangaroo represents positive values, such as individual responsibility and pride.

1.The general idea of this passage should probably be __________ .

A. animals are friends of human beings

B. nearly all the countries have an animal as their national animal

C. animals’ good values are always used to show a country’s national spirit and character

D. certain human characteristics are the same as some animals, so some countries love animals

2.Which is NOT true about the animal of the “bald eagle”?

A. It was Benjamin Franklin who made the bald eagle as the national animal of the USA.

B. The term “bald” means “marked with white”.

C. The bald eagle can show American national spirit and character.

D. “Old Abe” was even an American hero.

3.The reason why the lion was made as the national animal of the United Kingdom was that ______ .

A. it could always be used to represent certain human characteristics of England

B. the Kings of England loved lions

C. there are many lions in England

D. lions are “king of the jungle”

4.What good values can the kangaroo show as national spirits?

A. Group.                     B. Respect of others.

C. Not understanding            D. Positive values.

高三英语阅读理解中等难度题查看答案及解析

Cryonics is the practice of cooling dead organic tissue. This is used on humans or animals that have recently died. The hope is to bring them back to life in the near future. By law, it can only be performed on humans after they are legally dead. Many scientists and doctors think cryonics is totally morally unacceptable. However, there are also many who support cryonics.

Supporters of cryonics hope that future technology will improve. Molecular technology is especially hoped to reverse (逆转) the early stages of clinical death. It is hoped that this will enable the repair of tissue on a very tiny level. It could also allow damaged tissues and organs to regenerate. They also assume that disease and aging will one day be reversible.

These supporters want to store the memory and identity from the brain of people who have recently died. Cryonics attempts to do this by using liquid that preserves the brain. If this is done before cooling, it will prevent injury. This cooling liquid saves the fine cell structures of the brain where memory and identity exist.

Critics of cryonics think this process is a waste of time and money. They base their opinions on the current level of science. It is true that cells, tissues, blood vessels, and some small animal organs can be reversibly preserved. Some frogs can even survive for a few months in a partially frozen state if they are kept a few degrees above freezing. But this is not true cryopreservation. There is no proof that the identity and memory of a person can be restored after death has occurred.

Critics also think that if it were possible to bring dead people back to life, it would cause many social problems. Critics worry it would cause a huge overpopulation problem. Many also think trying to reverse death is immoral because it is against the will of their God.

1.What can we know about cryonics from paragraph 1?

A.Cryonics is used before people's death.

B.All scientists aren't in favor of the use of cryonics.

C.Laws forbid the use of cryonics on legally dead people.

D.Cryonics tries to cool dead organic tissue by using liquid.

2.What does the underlined word ''regenerate'' in paragraph 2 mean?

A.copy. B.return.

C.freeze. D.regrow.

3.Why do critics oppose the use of cryonics?

A.It will make people's memory lost.

B.Injury will occur during the process.

C.There is scientific uncertainty about it.

D.It goes along with their religious belief.

4.What is the main idea of the text?

A.The use of cryonics has a bright future.

B.Cryonics is still a controversial practice.

C.The practice of cryonics is limited by law.

D.There is an advance in medical technology.

高三英语阅读理解中等难度题查看答案及解析