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For months, Solomon and her students have been testing for oxygen, salt levels and chlorophyll (叶绿素) in the river to judge is present state of health, which unfortunately appears to be poor.

To McCall, who was born deaf, Solomon is more than a role model. She's a great teacher, strict but fair. McCall said, "if it weren't for Solomon, I couldn't imagine doing this kind of work."

Solomon was the only deaf person in her family. In school, she was always good at math and science, but her interest in the environment didn't develop until she was a teenager.

"When I was in high school, my dad was a visiting professor at the U. S. Naval Academy," Solomon said. "We rented a house by a small river. We weren't able to swim in the river because it was too polluted. "

Solomon, who won 13 gold medals in swimming in the Deaflympics, would never forget that polluted river near her house. A career in science and environmental studies became her passion. But she also found another passion (热情): "How can I influence other deaf and hard-of-hearing students?"

It was a question based on Solomon's own experience as a college student, first as an undergraduate (本科生) at Harvard, then as a graduate student at the University of Washington.   These were schools where she was usually the only deaf person in the class.

Training the next generation of biologists who happen to be deaf has become Solomon's goal, and for that she has received high praise at Gallaudet. Not because she's an especially gifted teacher, but because she has learned how to get her students to focus on what they're capable of not what they're limited by.

▲ What to Know About Driving on Highway 395

Highway 395 begins in Hesperia, a city about 90 minutes east of Los Angeles. It then continues for 1,300 miles until its end point at the Canadian border (边界). While the entire drive is beautiful, its most famous section runs from the Los Angeles area up to Reno, Nevada.

▲ Where to Stop Along Highway 395

CONVICT LAKE

Convict Lake, one of California's clearest bodies of water, is a beloved destination for photographers. During your drive, you can pull over for a photo, or quickly hop on a boat and cast a fishing line to see what you can catch.

MAMMOTH MOUNTAINM

Just around the corner, you'll find Mammoth Mountain, one of America's best ski destinations. Mammoth is renowned for its extended ski season, often lasting until July, and offers excellent terrain (地形) for all skill levels.

YOSEMITE NATIONAL PARK

During your drive, pay n visit to Yosemite National Park, a UNESCO World Heritage site. Here, you can watch climbers make their way up Half Dome, feel the power of Yosemite Falls, and enjoy the beauty of Tuolumne Meadows.

▲ When to Drive on Highway 395

Because many attractive places along Highway 395 are all-season destinations, there's really no wrong time to depart on this road trip. However, it's important to remember the road can get rather dangerous in winter. Check the highway website before leaving to ensure you're aware of the conditions.

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2. 你的期待。

注意：1. 词数80左右；

2. 可以适当增加细节，以使行文连贯。

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Her performance was outstanding the other contestants, who seemed less prepared.

She joined the debate club the drama club, seeking to improve her speaking ability.

This stone bridge has a long history the 17th century.

In summary, it is of utmost importance to teenagers' mental health.

She's a true friend. She always whenever I was lonely.

The student the project promised everything would be completed on time.

The Abu Simbel temples in Egypt are thousands of years old and it took decades to build them. There is some debate among historians over the exact date the construction of the twin temples began, but it is (general) agreed that they were built in the 13th century BCE. In the mid 20th century, the temples were under serious threat. The government had decided to build the Aswan High Dam on the Nile, would cause water levels to rise and flood the Abu Simbel temples. This sparked global concern, as people were unsure if the temples could be saved from the (rise) waters.

Some experts,, had a feeling that it was possible. UNESCO put together an international team of architects, engineers and heavy equipment operators to save the temples. They finally decided to try to take the temples apart, move (they) parts to a new location and then put them back together. There was no guarantee that it would work. However, the operation (plan) carefully and the team managed to relocate all of the Abu Simbel temples any problems eventually.

This success (prove) the power of international cooperation in times of crisis. It is difficult to forecast what (threat) our heritage sites will face in the future, but we have the belief that we will need this kind of cooperation in heritage preservation.