1 . 听下面一段独白，回答以下小题。
1. What do the British like doing with birds according to the speaker?

A．Eating them.

B．Watching them.

C．Hunting them.

2. What effect have the British had on wild birds?

A．They have increased their numbers.

B．They have allowed one type to take over.

C．They have changed their natural habits.

3. Who are most likely to be interested in the talk?

A．Gardeners.

B．Pet owners.

C．Nature lovers.

2 . Courage takes many forms and, consequently, can be difficult to define. But it would be impossible to describe Xia Boyu's heroic acts without using that word.

On May 14, 2018, he reached the world's highest summit from the south side in Nepal, at an age when most people are taking life easy. He blinked on the summit, wondering whether it really happened or if it was just a dream. He then realized that his years of effort had paid off, and he instantly called his wife with the news, bursting into tears.

That could be considered an achievement in itself, but this was his fifth attempt. About four decades, he lost his lower legs to frostbite trying to conquer the 8,848.86-meter-high peak on his first attempt. He is the first Chinese climber without legs to conquer the mountain. He reached the summit at the age of 69.

"When I finally made it to the peak, I was not as excited as I imagined. I was absolutely knackered, both cold and lacking oxygen, sitting in the snow. I was too tired to speak or move," Xia says with an lovely touch of modesty.

As well as the physical challenge of any attempt on the summit, there are also financial considerations. It costs about 500,000 yuan to climb Qomolangma. When he resolved to challenge the summit again in 2008, he sold his apartment in Beijing to cover the expenses.

He is grateful for the unconditional support from his wife and son, "My wife always understood my dream. All these years, I've devoted myself to my dream and had less time to deal with family affairs." Xia says.

His wife, Ma Yi, says in an interview: "His thought process is a simple one, and he has a preoccupation (执着) with climbing. He's doing his best to fulfill an ideal. How could I prevent him from doing it?"

1. How did Xia Boyu feel as he finally reached the summit?

A．Shocked.

B．Relieved.

C．Curious.

D．Incredible.

2. What does the underlined word "knackered" mean in paragraph 4?

A．Disappointed.

B．Exhausted.

C．Depressed.

D．Frightened.

3. What does Xia owe his own success to?

A．His physical disabilities.	B．His financial conditions.
C．His family's support.	D．His climbing experience

4. Which of the following is a suitable title for the text?

A．A Couple in Love	B．The Height of Courage
C．The Unconquerable Summit	D．An Adventure to Qomolangma

3 . Noise pollution has a long-term effect on tree populations that may persist even after the sources of noise are removed, according to research published Wednesday.

Man-made noise from industry and the building of infrastructure such as roads and pipelines has increased greatly since the middle of last century. While previous research has documented the short-term effect noise has on tree populations as it scares off pollinators (传粉者) such as insects and animals, few studies have covered the long-term effect.

Researchers in the United States looked at tree populations in New Mexico that had been “hearing”a high level of man-made noise for 15 years. They found 75 percent fewer pinyon pine seedlings (矮松苗) in noisy places than quiet ones.

Then they looked at other places in New Mexico, where sources of noise had recently been added and then removed, and examined how populations recovered. The team assumed that populations of the trees — in this case pinyon seedlings — would recover as the pollinators would return to the places once the noise had disappeared. Instead, they found a long-term drop in seedling numbers as the birds refused to revisit the places.

“The effects of human noise pollution are growing into these woodland communities,” said Clinton Francis, lead researcher from California Polytechnic State University. “What we’re seeing is that removal of the noise doesn’t necessarily immediately result in a recovery of ecological function.”

Jennifer Phillips, co-author of the research, said the findings showed how the effect of noise pollution could put pollinators off even after the noise is removed. “Animals like the birds that are sensitive to noise learn to avoid particular areas.” said Phillips. “It may take time for animals to come back to pollinate trees in these previously noisy areas, and we don’t know how long that might take.”

As governments continue to face growing evidence of the damage to nature caused by urbanization (城市化), Phillips held that the influence of noise pollution should also be factored into planning decisions.

1. What does the underlined word “persist” mean in paragraph 1?

A．Recover.

B．Decrease.

C．Last.

D．Disappear.

2. How did Clinton Franci’s team carry out the research?

A．By studying cases in New Mexico.

B．By challenging the previous research.

C．By recording the routines of pollinators.

D．By following the sources of noise pollution.

3. Which of the following would Phillips most probably agree with?

A．Noise pollution kills large numbers of birds.

B．Governments should take measures to remove noise.

C．Ecological recovery contributes to the removal of noise.

D．It’s hard to tell when birds will revisit previously noisy places.

4. What does the text mainly talk about?

A．Removing noise enables plants to grow better.

B．Pollinators play a role in increasing plant population.

C．Noise pollution has long-term effects on plant populations.

D．Man-made noise does great harm to woodland communities.