The life-saving drug invented in 1897, which ...

The life-saving drug invented in 1897, which ________ aspirin, has helped increase the standard of people’s health greatly.

A. was called　　 B. is called　　 C. has been called　　 D. had been called

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Aspirin was invented in 1897. However, the __1.___ chemical used to make aspirin can be found in nature. Nearly 3,500 years ago, people __2.__ on leaves or drank a kind of tea made from leaves ___3.__ a special chemical to reduce body pains and __4.___.

It was in 1897 that a __5.___ chemist called Dr Felix Hoffmann produced aspirin from this chemical. The first ___6.__ of this medicine took place in 1899, when the company Hoffmann worked for began ___7.__ the medicine in powder form to physicians to use with __8.___. A year later, in 1900, aspirin was sold in shops in the form of __9.___.

However, a recent survey __10.___ in the USA shows that 80 per cent of Internet users __11.___ it mostly to search for answers to questions. The second most common use of the Internet, for 79 per cent of Internet users, is to find out information about __12.___. These statistics __13.___ that gathering information is the __14.___ use for the Internet.

Another truly wonderful __15.___ of the Internet is the way people use it to build social ___16.__. One of the greatest benefits of Internet friendships is that they are __17.___ on common interests, rather than ___18.__ or age. Young people from __19.___ backgrounds and different countries can form friendships that will last their __20.___ lives.

高二英语单词拼写中等难度题查看答案及解析

There are two medicines that change people’s lives, one of 1. is aspirin, 2. (invent) in 1897. It is made from leaves or tree barks(树皮) possessing a special chemical and was first sold in 3. form of tablets in 1900. Aspirin has saved many people’s lives by reducing fever and pain. It 4. (recommend) for reducing potential heart attack strokes and some cancers. There have been more discoveries on how it can help increase the 5. (long)of people’s lives and help people with diseases.

The other drug which has proved 6. (benefit) to mankind is penicillin. It was first discovered in 1928, but it was not until World II 7.penicillin was purified and produced in large quantities. Due 8. the widespread use of penicillin, many 9. (life)were saved during the war. Had penicillin not been available, many people would have died from sickness of even small wounds. Penicillin became the 10. (great) drug of the 20th century.

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The insect ______ a powerful drug which affects mosquitoes.

A. contains         B. includes         C. contained        D. included

高二英语单项填空中等难度题查看答案及解析

It came as a shock that the famous singer was arrested for being _______ drugs, which had a bad effect _____ the public.

A. in possession of; on　　　　　　　　　 B. in the possession of; on

C. in possession of; to　　　　　　　　　 D. in the possession of; to

高二英语单项填空中等难度题查看答案及解析

A gadget (器具) which makes water out of air could become the greatest household invention since the microwave.

Using the same technology as a dehumidifier (除湿器), the Water Mill is able to create a ready supply of drinking water because it can always get it from an unlimited source—the air.

The company behind the machine says not only does it offer an alternative to bottled water in developed countries, but it is a solution for the millions who face a daily water shortage.

The machine works by drawing in wet air through a filter (过滤器) and over a cooling instrument which changes it into water drops. It can produce up to 12 liters a day. The Water Mill will also produce more water when storms pass over, as the amount of water which is contained in the air increases. In keeping with its eco-development, the machine uses the same amount of electricity as three lights.

Inventor Jonathan Ritchey said: “The demand for water is off the chart. So people are looking for freedom from water distribution systems that are shaky and unreliable.”

The machine, which is about 3 feet wide, is likely to cost ￡800 when it goes on sale here in the spring. Its maker, Canadian Firm Element Four, roughly (粗略地) calculates that a litre of water cost around 20p to produce.

Environmentalists state that half the world’s population will face water shortage because of climate change by 2080. One in five is said to lack access to safe drinking.

The Water Mill is not effective in areas where the amount of water contained in the air is below about 30 percent, but in Britain that won’t be much of a problem.

1.What does the underlined word “it” refer to?

A. Drinking water.     B. Invention.    C. Microwave.      D. Water Mill.

2.What do we learn about the machine?

A. It works in the same way as microwaves.

B. It is very expensive for families to afford.

C. It absorbs steam and turns it into water.

D. It helps to make the water clean to drink.

3.What does the passage lead us to believe?

A. The cost of water will go up.     B. Bottled water will disappear sooner.

C. The machine is energy saving.     D. The machine will be popular worldwide.

4.What’s the best title for the passage?

A. A New Way to Solve Water Problem. B. A Machine to Make Water out of Air.

C. A Dehumidifier to Produce Water.  D. An Absolutely New Invention

高二英语阅读理解中等难度题查看答案及解析

The invention of steam engine greatly sped up the industrial revolution, which _____ a lot to the take-off of the world.

高二英语单项填空中等难度题查看答案及解析

The invention of steam engine greatly sped up the industrial revolution, which ________ a lot to the take-off of the world.

A. turned                    B. contributed                C. constructed              D. exposed

高二英语单项填空中等难度题查看答案及解析

The purpose of the newly-invented robots which can help bathe people is to ________ the dignity and privacy of patients.

A. destroy          C. observe          C. attend               D. preserve

高二英语单项填空中等难度题查看答案及解析

The word “invent” comes from a Latin word which means “to find.” Garrett Morgan, an African-American, was one such inventor. His first job was repairing machines in a factory. By accident, he had invented the hair straightener. He sold his products and then continued with his career as an inventor.

Every day, Garrett Morgan watched traffic become more dangerous. Cars, bicycles and walkers all competed to cross the street. Police officers made simple “stop / go” signals at busy crossroads, but cars, bicycles and walkers still rushed into the crossroads at different speeds and many crashed into each other. One day he saw a traffic accident between a car and a bicycle at a busy crossroads. he realized ,the problem with the traffic light, was its poor design: the traffic signal lacked a transition (过渡) between “stop” and “go.”

Morgan invented a new traffic signal that added a “caution (警告)” light that made traffic move more smoothly and safely. His traffic light stood on a T-shaped pole (杆) with arms that flashed a red light to stop traffic in all directions, allowing walkers to cross safely. After walkers crossed, traffic could only go in one direction.

Soon, cities everywhere wanted his traffic light. In 1923, a popular electric company paid Morgan $40,000 to make and sell his invention. Traffic lights today work in the same basic way.

The traffic light is Morgan’s most famous invention. In 1963, the United States government gave Garrett Morgan an award for his life-saving idea.

1.What can we learn about Garrett Morgan from Paragraph 1?

A.He worked in a factory all his life.

B.He led a hard life in his early years.

C.He made money from hair straighteners.

D.He dreamed of being an inventor when he was a child.

2.What made Morgan invent the traffic light?

A.A traffic accident. B.A car driver’s advice.

C.Worry about his safety. D.Hard work of police officers.

3.According to the text, Garrett Morgan’s traffic light _____.

A.made cars move more slowly.

B.needed no help from police officers.

C.was special because it had a “caution” light.

D.was very different from the ones we use today.

高二英语阅读理解简单题查看答案及解析