【题目】 Why Ultra-pure(超高纯的)Water Is Actually Bad for Your Health Many people are surprised to hear that drinking purified water on a regular, daily basis is actually dangerous. So why is 100% ultra-pure water not good for us? 1

There is no such thing as truly pure water in the natural world. 2When these minerals dissolve(溶解)in water, they form what we commonly refer to as electrolytes(电解质).They allow us to perform all the “bioelectrical” functions such as moving, heart-beating, thinking, and seeing.

But pure water fails to provide these fundamental electrolytes. 3You can think of it this wayimagine a room with no gravity, split in half down the middle. You throw a couple hundred balls into the left side of the room. 4 But if you cut a bunch of holes in the barrier, they will slowly start to spread over to the right side. Eventually, they will be evenly distributed across the entire room.

The water in your organs stays at very specific levels of minerals. When you drink ultra-purified water, it pulls the minerals out of your blood just like the right side of the space room pulled some of the bouncy balls over from the left. 5

Purified water can only be recommended as a way of drawing poisons out of the body. Once this is accomplished, the continued drinking of purified water is a bad idea.

A.Purified water is an active absorber.

B.Since there's no gravity, they bounce around everywhere.

C.It actually tries to rob your body of them when you drink it.

D.Even water in the purest lakes contains small amounts of minerals.

E.If you drank enough of it, the lack of minerals would eventually kill you.

F.The simple answer is that ultra-pure water doesn't provide the natural minerals we need#

G.This is why materials tend to move from more concentrated areas to less concentrated ones.

【题目】 Whales, like all mammals(哺乳动物),need air, and come to the surface to breathe through a blowhole. A drone(无人机)that floats over the blowholes of humpback whales as they are making annual journey along Australia's east coast is being used by Australian scientists for collecting nasal mucus(鼻腔粘液)of whales.

Vanessa Pirotta, a biologist at Macquarie University says that nasal mucus indicates the health of the whale. “It is the biological mixture that you see as a whale takes a breath as it surfaces from the water” she said. You can hear sounds of sharp breaths as a whale breathes because, after all, they are animals like you and I. So as they take a breath it is a lot of lung bacteria coming out from their lungs, which we can collect to provide a brief idea of whale health.

Australian researchers have attached a special dish that is used in scientific tests to a drone which flies through the whale's nasal mist. As a whale comes to take a breath—you can actually see it coming to the surface on really good weather days —the drone then lowers, the dish is then opened, collecting nasal mucus for later research.

The research could help to solve one of the secrets of another impressive creature of the deep —the Southern right whale. Its numbers have recovered on Australia's west coast since hunting became suppressed but its population on the eastern seaboard remains stubbornly low.

In the past, studies into whale health had to rely on examining whales that were either killed or those whales that had been trapped on a beach. Drones allow scientists to collect nasal mucus from free-swimming whales to gather information in a safe way.

1What is the drone mainly used to do?

A. To gather information for researchers.

B. To record new species of whales.

C. To guarantee the safety of whales.

D. To take photos of whales' annual journey.

2How can a biologist find out a whale's health condition in the study?

A. By examining liquids from its breath.

B. By checking its lungs on a machine.

C. By listening to the sounds of its breath.

D. By studying its similarity with humans.

3What does the underlined word “suppressed” in Paragraph 4 mean?

A. Commercial.B. Rewarding.

C. Hidden.D. Forbidden.

4Why is the Southern right whale mentioned?

A. To describe the difficulty to track it.

B. To show the increasing population.

C. To stress the urgency of doing the research.

D. To indicate the potential application of the research.

【题目】You probably know who Marie Curie was, but you may not have heard of Rachel Carson. Of the outstanding ladies listed below, who do you think was the most important woman of the past 100 years?

Jane Addams (l 860-1935)

Anyone who has ever been helped by a social worker has Jane Addams to thank. Addams helped the poor and worked for peace. She encouraged a sense of community by creating shelters and promoting education and services for people in need. In 1931, Addams became the first American woman to win the Nobel Peace Prize.

Rachel Carson (l 907-1964)

If it weren’t for Rachel Carson, the environmental movement might not exist today. Her popular 1962 book Silent Spring raised awareness of the dangers of pollution and the harmful effects of chemicals on humans and on the world’s lakes and oceans.

Sandra Day O’Connor (1930-present)

When Sandra Day O’Connor finished third in her class at Stanford Law School, in 1952, she could not find work at a law firm because she was a woman. She became an Arizona state senator (参议员) and, in 1981, the first woman to join the U.S. Supreme Court. O’Connor gave the deciding vote in many important cases during her 24 years on the top court.

Rosa Parks (1913-2005)

On December 1,1955, in Montgomery, Alabama, Rosa Parks would not give up her seat on a bus to a white passenger. Her simple act landed Parks in prison. But it also set off the Montgomery bus boycott. It lasted for more than a year, and kicked off the civil-rights movement. “The only tired I was, was tired of giving in,” said Parks.

1What is Jane Addams noted for in history?

A. Her social work.

B. Her teaching skills.

C. Her efforts to win a prize.

D. Her community background.

2What was the reason for O’Connor’s being rejected by the law firm?

A. Her lack of proper training in law.

B. Her little work experience in court.

C. The discrimination against women.

D. The poor financial conditions.

3Who made a great contribution to the civil-rights movement in the U.S.?

A. Jane Addams. B. Rachel Carson.

C. Sandra Day O’Connor. D. Rosa Park.

【题目】 In 2011, the old style Malta buses were taken off the road and replaced by modern vehicles. Most of the old buses were deserted, a few were sold, and about 100 of them were put into storage in the hope of showing them in a museum at some stage.

A pre-2011 visit to Malta wouldn’t have been complete without a ride on one of the colorful buses. Until 1973 you could tell the destination of the bus just by looking at its color — Sliema was green and white, Zabbar was red and white with a blue stripe(条纹)etc. . Later, the buses all had numbers. For a while, they were all painted green and white before the ‘final’ orange, yellow and white.

In their prime, walking around the Triton fountain at the Valletta bus station, you would have found it very difficult to see two buses of exactly the same design. Most of them had locally built bodies. On the front of the buses carried names like Dodge, Leyland, Bedford etc. . You were equally likely to find football pennants(锦旗)and the like decorating the cabs. Real bus experts would have recognized that these were there mainly for decorative reasons, and were seldom an accurate reflection of the vehicle’s origins.

Nowadays much more modern buses are to be found at the Floriana bus station. They are more environmentally friendly and possibly even more comfortable than the older types. However, I miss the old buses. I remember, when you boarded your bus, you had to prepare the correct change to pay the usually bad-tempered driver as you got on. If you were seated anywhere near the front, you would have noticed that most drivers sat well to the right of their steering wheel. The reason for this, as any Maltese would tell you, was to leave space for their pet to sit alongside them. I wonder where the pet sits these days.

1What makes a pre-2011 visit to Malta special according to Paragraph 2?

A. Traveling in colorful buses.

B. Using buses with stripes.

C. Painting buses bright colors.

D. Telling destinations by different colors.

2Which of the following best explains “prime” underlined in Paragraph 3?

A. Painful time.B. Exciting time.

C. Moment of fantasy.D. Moment of glory.

3What can we learn about Malta buses when they were popular?

A. They were of the same pattern.

B. The decorations reflected their origin.

C. Most were uniquely designed.

D. Only football pennants decorated the cabs.

4How would the author feel about the old style Malta buses?

A. Comfortable.B. Environment-friendly.

C. Safe.D. Memorable.

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