【推荐1】A survey of university students shows that those who place more online orders for food seem more likely to feel depressed. The Panel Study of Chinese University Students released by the Chinese Academy of Social Sciences surveyed students at 18 universities.

The survey found that time spent online in general had a significant impact on students' mental health. The longer a student spent online each day, the worse was the self-evaluation and the higher the likelihood of depression. For sleep quality, about 45 percent of student respondents gave themselves a score of 6 points out of 10. Data showed that 6.4 percent of university students order takeaway food online almost every day, followed by 16 percent who place orders 3 to 5 times a week and 21 percent who use the services 1 to 2 times weekly. Dr. Zhang Zhenyu, who participated in the research, said students on average had a self-assessment that rated their physical and mental health at 8.45 points. Over 36 percent scored more than 10 points on the CESD-10 depression scale. Zhang also found that 29.9 percent of students thought themselves "fat" or "very fat" and 54.3 percent said their appearance scored 6 out of 10.

According to the survey, 2.5 percent have had facial plastic surgery(整形手术) and 5.8 percent have plans to improve their appearance through surgery in the next three years. Among students who want plastic surgery and those willing to do it, girls take up to 64 percent and 79.8 percent respectively(依次).

The survey also showed that 22.6 percent of students were left-behind children when they were kids, which research defines as children separated from their parents for six months in a row who had to be looked after by others. Zhang said the early experience of separation from parents had a negative impact on students’ mental health and self-assessment scores. They also had higher depression scores than those who lived with parents.

The research team also found that students with good family economic conditions scored higher in all dimensions than students from poor families. Students with a good physical and mental status had strong time management and self-management abilities.

1. According to the surveyed students, how many of them make online orders for daily food?

A．6.4%.

B．16%.

C．21%.

D．45%.

2. How is the second paragraph developed?

A．By making comparisons.	B．By giving clear explanation.
C．By giving data.	D．By following time order.

3. If a student spent a lot of time online, he (or she) would be ___________.

A．better in the self-evaluation

B．more likely to feel depressed

C．in high spirits in daily life

D．mentally and physically healthy

4. What can be inferred from the passage?

A．Nine out of ten students regard themselves as fat or very fat people.

B．Many a girl shows no interest in facial plastic surgery.

C．Students who lived with their parents longer had lower depression scores.

D．A student with a strong body usually comes from a well off family.

【推荐2】It could be the return of “The Blob (变形怪体),” and scientists are worried. A mass of warm water extending from Baja California in Mexico all the way to Alaska and the Bering Sea could result in death for many sea lions and salmon, as well as poisonous algae (藻) blooms that can poison mussels (贻贝), crabs and other sea life. When it happened in 2014 it was known as “The Blob” and disturbed sea life between Southern California and Alaska. Now it’s back. The ocean heat wave began to form in June.

The surface temperatures in the affected areas are 5 to 7 degrees above the long-term average. The so-called blob (团)covers an area of 4 million square miles, or three times the size of Alaska. It’s 165 to 325 feet deep. The warming comes from some high pressure that keeps winds calm.

Whether it will last as long as the 2014 heat wave is impossible to know. “If the weather patterns that led to its development change all of the sudden and we get some cold weather and storms, then it could disappear pretty quickly,” said Stephanie Moore.

The heat waves are unprecedented. Satellite records go back about 40 years and ship observations 100 years, but nothing in the historical record has matched either of these two events.

Along the California coast, the blob-like warm areas are still about 1,000 miles away from shore.

In Washington state, the warm area has reached the shore, where it is causing a poisonous algae bloom that has prompted health officials to warn against eating mussels from state beaches.

Mussels have been collected on Washington shores that contained more than 10 times the regulatory limit of the toxin for human consumption. The warm area that continued to exist off the West Coast in 2014 and 2015 wasn’t something scientists had seen before.

1. What do we know about “The Blob”？

A．It occurred frequently in the USA.	B．It made sea products unfit to eat.
C．It was the most severe pollution.	D．It struck the Bering Sea per summer.

2. What resulted in “The Blob”？

A．Ocean surface.	B．Warm wind.
C．High air pressure.	D．Alaskan’s climate.

3. What does the underlined word “prompted” in Para. 6 mean?

A．Caused.

B．Intended.

C．Banned.

D．Expected.

4. In which column may the text appear in a paper?

A．Entertainment.

B．Culture.

C．Science.

D．Environment.

【推荐3】Some caterpillars’ warning signals (信号) may have evolved (进化) from walking. A team, writing in the journal Nature Communications, reported that the hair-like structures the living things use to make sounds evolved from legs.

The team studied caterpillars which use these structures to communicate their ownership of leaves. This means the caterpillars are able to “tell” strangers to go away without risking injury in fighting. “These are really interesting caterpillars,” said Dr. Jayne Yack from Carleton University in Ottawa, Canada, who led the research. “They make signals using hair-like structures which are on their back ends.”

The caterpillars drag these structures across the leaf to make scraping (刺耳的) sounds when strangers enter the area of their leaves. “When they make this signal, the strangers leave,” explained Dr. Yack. “It’s like saying ‘I’m here, get out of here — I already own this leaf’.”

The scientists looked at other species (物种) within the same group of caterpillars and created their “family tree”. They used chemical markers (标记物) to work out the relationship between the animals, showing which in the group were the more ancient species and which species evolved more recently. “Those more ancient species actually don’t have these sound-producing structures. They have legs that they use to walk towards strangers,” said Dr. Yack. These more ancient species, she explained, walk towards strangers and try to fight against them. “They can kill each other in the fighting,” Dr. Yack added. She said that the evolution of the scraping show had allowed the caterpillars to solve their fighting without injury. “So our idea is that these signals actually avoid harm to both sides — they solve fighting in a more ‘friendly’ way.”

The study also provides a map of an evolutionary process that many other biologists are researching.

1. What can we learn about caterpillars’ warning structures from the text?

A．They have the same use as hair.

B．They are found in caterpillars’ heads.

C．They are used to fight against strangers.

D．They may have evolved from caterpillars’ legs.

2. According to the text, Dr. Yack’s team did NOT ________.

A．draw a family tree of caterpillars

B．create a map to show how caterpillars evolve

C．study species within the same group of caterpillars

D．make clear the relationship between different species of caterpillars

3. What does the underlined word “They” in the fifth paragraph refer to?

A．The ancient species.	B．The chemical markers.
C．The sound-producing structures.	D．The more recently evolved species.

4. What is the main idea of the text?

A．How caterpillars evolved.

B．How caterpillars warn strangers.

C．Communication between caterpillars.

D．Caterpillars’ warning signals evolved from walking.

【推荐1】Being highly successful in any field is pretty rare. It takes a combination of natural talent, luck, determination, and plenty of outside support for someone to make it big in sports, entertainment, or business. But what if competing is all that matters to you, whether you are likely to succeed or not? This was the goal of Michael Edwards, better known as Eddie “The Eagle” Edwards, and his reaching that goal was an amazing achievement.

Born in the UK in 1963, Edwards was a passionate downhill skier whose dream was to compete for Britain in world-class competitions. He would have liked to represent his country in the 1984 Winter Olympics, but there were a large number of downhill competitors, and Edwards didn’t qualify. Seeing his chance elsewhere, he switched to ski jumping. Ski jumping didn’t cost as much as downhill skiing, and there was almost no competition for a place on the British team.

But a number of hurdles could have meant the end of Edwards’ dream. He weighed more than most competitors. He had no financial support for his training. Poor eyesight meant that he had to wear glasses under his goggles—not a good thing when they steamed up at high altitudes. But he couldn’t let any of these discourage him. He saw himself as a true lover of the sport who simply wanted the chance to compete. Winning wasn’t the point. Having the opportunity to try was all he cared about. And nothing could stop him from trying.

In the end, Edwards took 55th place at the 1987 World Championships. He then went on to the

1988 Winter Olympics where he finished last. Many athletes would have been embarrassed about this result, but he is proud of his achievements to this day. His determination to fight against all the odds made him a global hero, and in 2016, the inspiring film Eddie the Eagle was made about his life.
1. What is the purpose of the first paragraph?

A．To add some background information.	B．To uncover the secret of success.
C．To expect an answer from readers.	D．To introduce the topic.

2. Why did Michael Edwards choose ski jumping?

A．It was more popular.	B．It needed fewer skills.
C．There was little competition.	D．There was free equipment.

3. What does the underlined word “hurdles” mean in paragraph3?

A．Doubts.

B．Obstacles.

C．Changes.

D．Options.

4. What made Michael Edwards outstanding?

A．His passion for the sport.	B．His determination to win.
C．His attitude towards the Olympics.	D．His ability to overcome physical disabilities.