Unit 4 单元测试题

第一节（共15小题；每小题2分，满分30分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A

Philadelphia (CNN) — Hazel Donnelly was taking her husband to the doctor when they got a call that their building was on fire.

Her first thought was about Kramer. “I don’t have children of my own, so my cat is like my child. I became very sad,” said Donnelly, 50. “What if he didn’t make it?”

Once she arrived home, Donnelly asked firefighters (消防员) to get her cat, but they were busy trying to control the fire. Then Red Paw Emergency Relief Team arrived. The organization helps pets and their owners for free when disaster strikes. Jen Leary, who set up the group, helped find the animals once the fire was out.

“Everyone who received their pets started to cry,” said Donnelly.

No one was hurt, but the Donnellys’ building was badly damaged, and they weren’t sure where they were going to stay. Donnelly was excited to learn that Red Paw could provide free short-term care for Kramer, her 17-year-old cat.

“When someone loses everything in a fire, they shouldn’t then be forced to lose their pets — their family members — as well,” Leary said. “Letting them know, ‘We’ll take care of your animal like it is our own’ means the world to people.”

After a big fire in 2011, Leary formed her organization. Since then, Leary and her group have provided help to nearly 1,000 animals and their families throughout southeastern Pennsylvania. Like the Red Cross, but for animals.

Red Paw cared for the Donnellys’ cat for more than three weeks. “I cried when we were reunited,” said Donnelly. “They went above and beyond the call of duty. I am so thankful.”

For Leary, helping families and their pets is what her work is all about. “My hope is that it’s a start, and they can move forward together,” she said. “After going through such a sad thing, it’s so good to have a happy ending.”

21. We can infer from the text that Kramer is _____. A. Donnelly’s husband

B. Donnelly’s child C. a firefighter D. a cat

22. What do we know about Red Paw? A. It offers help to pets and their families. B. It was set up by Hazel Donnelly. C. It belongs to the Red Cross. D. It saves people in disasters.

23. The fire in the Donnellys’ building _____. A. took many people’s lives

B. caused great damage to the building C. left Donnelly seriously hurt D. led to the loss of a family member

24. Who looked after Kramer for a long time after the fire? A. A doctor. B. Jen Leary. C. Red Paw. D. The Red Cross

B

Welcome to Death Valley. The very name of this national park in eastern California might fill some people with dread, but you’re not afraid. You’re just out desert sunshine. Besides, there’s nothing out here but some

Some of the rocks in Death Valley weigh hundreds of in the ground behind each rock is a mysterious trail (痕迹), as had been pushed along in the dirt.

So who is moving the rocks? Nobody. It was nearly 100 years ago when these unusual “sailing stones” were first reported. People have been trying to find out the stones’ secret ever since. One early explanation was that winds were moving the stones. Other explanations have included animals, and, of course, aliens (外星人).

Until the 1990s, one widely held theory was that the rocks were stuck in sheets (片) of ice that were being blown across the desert. (Death Valley does get cold enough for ice to form on some

enjoying the rocks. pounds. And if the rock

winter nights.) However, research later showed that to move such large ice sheets, the wind would have to blow at hundreds of miles per hour. There are strong winds in Death Valley — but not that strong.

Then, in 2006, a scientist named Ralph Lorenz came up with a new theory. He suggested that in the winter, thick ice forms around the rocks. When the ground begins to thaw (解冻), the rocks, wearing ice, sail along, leaving trails behind them. Lorenz put his theory to the test in his own kitchen. He dropped a rock into a dish, added a little water, and stuck the dish in his fridge. Later, he took out the rock and placed it in a dish of water with sand at the bottom. Sure enough, with just a breath, Lorenz was able to send the rock moving across the water — leaving a trail in the sand as it moved.

Has Lorenz solved the mystery of the sailing stones at last? the other hand, neither Lorenz nor anyone else has ever actually stones move. Maybe aliens are responsible after all. 25. The underlined word “dread” in Paragraph 1 probably “_____”.

A. fear B. anger C. surprise D. excitement

26. According to the theory in the late 20th century, the rocks were probably moved by _____. A. the ice B. the wind C. aliens D. animals 27. What did Ralph Lorenz find?

A. The wind in Death Valley could reach a speed of 100 mph. B. The rocks in Death Valley couldn’t move by themselves. C. Death Valley could get cold enough for ice to form. D. Water helped the rocks in Death Valley move.

C

Dear friends and colleagues (同事) of Tom Blumenthal,

We are organizing a celebration honoring Tom’s research career (生涯). As you may know, his research lab in Boulder, Colorado will soon be closing, and he will be changing to a new stage of his career, focusing on (关注) the Linda Crnic Institute for Down Syndrome. In order to mark this

means Perhaps. On seen the

important moment, and to celebrate his many years as a great researcher, we invite you to a celebration on June 20-21, 2014 at the University of Boulder, Colorado. The program includes both scientific and social events. And there is no cost for the event.

Sincerely,

Members of the Organizing Committee

Dear colleagues,

It is my pleasure to invite you to join in the IFCC Worldlab 2014 Congress in Istanbul on June 22-26, 2014.

Excellent colleagues throughout the world will come together in what promises to be a very interesting and fruitful event. We believe that this Congress will provide a cutting-edge educational and scientific experience for you. The scientific program focuses on how important laboratory medicine services are to clinical (临床的) medicine and the health of patients and the public.

With the support of the industry, we hope to achieve a successful organization, both scientifically and socially. A social program will provide an opportunity to travel around the attractive city of Istanbul and other interesting places of Turkey.

Looking forward to meeting you in Istanbul.

Nazmi Ozer

President, IFCC WorldLab 2014 Congress

28. There’s a special event on June 20-21, 2014 _____. A. celebrating the opening of a research lab B. celebrating Tom Blumenthal’s birthday C. for the success of an organization D. for a researcher’s excellent work

29. What do we know about the IFCC Worldlab 2014 A. It offers a valuable scientific experience to people. B. It shows how the best labs in the world work. C. It is designed for scientists in Turkey. D. It discusses the importance of health. 30. Both of the two letters are letters of _____.

Congress?