Each year more than 3 million people visit Rocky Mountain National Park, the third most-visited national park in the USA. Many of them arrive there by car, they drive along the Trail Ridge Road, which     1     (build) during the 1930s.

People are attracted by its scenery, hiking trails and wildlife. The hiking trails include    2     (challenge) difficult climbs    3     some of the high mountains and forest hikes     4    lead to one of the park’s waterfalls. They also include trails to blue lakes. The view of Longs Peak from its lakeside is the finest in the whole park. One of the most     5     (adventure) hikes in the park is the Continental Divide Loop. The 86-kilometer path cuts through valleys and past lakes and waterfalls. It takes most hikers at least six days    6     (complete).

Long hikes give visitors a chance to experience Rocky Mountain wildlife. Within the park     7     (be) hundreds of sheep as well as     8     small moose population. The park’s huge number of large animals makes     9     one of the best places in America for wildlife watching.

The     10     (explore) of the park could be enjoyable and unforgettable. You can explore it on foot, you can sleep under the stars, and you can sit by a clear quiet lake.

Nanjing, the capital city of China’s Jiangsu Province and located ( 位于) along the Yangtze River Delta (三角洲),     1     (be) once the capital of the Ming Dynasty and is recognized as one of the Four Great Ancient Capitals of China alongside Beijing, Xi’an     2     Luoyang.

But if you’ll only be visiting for 72 hours, there are a few     3     (experience) that you shouldn’t miss out on.

Any trip to Nanjing, no matter     4     short it is, wouldn’t be complete without some excellent food. Nanjing cuisine is a part of Jiangsu cuisine and often shows the area’s     5     (local) grown produce and fresh seafood.

The city is also considered the birthplace of Peking Duck, but it also prepares a local favorite: Nanjing salted duck,     6     is served cold after being cooked in very salty water.

Nanjing is known for     8     (it) cultural and political importance. Today, travelers can visit numerous temples (寺庙) within the city and walk along Stone City, the remains of the city’s ancient fortifications (防御工事), at a local park.

Nanjing is also home     9     one UNESCO World Heritage Site — the Xiaoling Mausoleum of the Ming Dynasty, located in the Zhongshan Mountain National Park, where many other    10     (importance) sites, such as Dr. Sun Yat-sen Mausoleum, are also located.

The Washington State Department of Agriculture (WSDA) said a large atlas moth (皇蛾)     1    (find) on a garage (车库) was identified as the first atlas moth ever documented in the United States.

The department said     2     university teacher took place photos when he found the large moth resting on the wall of     3    (he) garage on July 7. State officials     4    (careful) examined the photos and     5    (confirm) the insect was an atlas moth, one of the world’s largest species of moth.

Atlas moths are native     6     the tropics (热带地区) and have never been documented in the United States.

“This is an     7    (attract) type of insect because it is so large,” said Sven-Erik Spichiger from the agriculture department. “Even if you don’t keep an eye out for insects, this is one that people will get their phones out and take a picture of — they are that striking.”

    8    (researcher) said they are now trying to find out if the moth is part of a population in Washington. They are asking anyone     9     discover s a similar insect     10    (report) it to pestprogram@agr.wa.gov .

“We hope residents will help us learn if this was a one-off escapee or whether there might be a population in the area,” the department said.

6 . Dutch researchers have discovered that birds living in cities are using metal spikes (尖刺) to build their nests. People put these spikes on buildings in order to keep birds off their balconies, benches, and chimneys, but birds seem to be stealing them and using them to keep people away from their eggs.

The research began when, in the courtyard of a hospital in Antwerp, Belgium, biologist AukeFlorian Hiemstra found a large nest that had been built by a magpie (喜鹊). The nest was made from about 1,500 metal spikes. They were pointing outward to create a protective system around the nest.

“I just stared at it, this strange, beautiful, weird nest,” Hiemstra told BBC News. When he investigated further, he found that magpies had moved away nearly 165 feet of metal spikes that had been glued to the hospital’s roof.

After Hiemstra made this discovery, his team heard about a similar nest created by crows in Rotterdam, in the Netherlands, and another magpie nest in Glasgow, Scotland. The crows had positioned the spikes in a different way, perhaps using the metal to support the nest’s structure.

In their report, the researchers mention many kinds of birds moving spikes off buildings, but they chose to focus their study on corvids(birds from the crow family). The researchers pointed out that there have been previous studies on how corvids use everything from telephone wires to clothes hangers to build their nests. They said the use of anti-bird spikes “hints at a functional use”—meaning the birds seem to know exactly what they’re doing.

Magpies have often been seen nesting in thorny (多刺的) places, where the thorns can prevent people from attacking the small eggs and chicks inside the nest. Thorny hedges aren’t common in cities, however, so the theory is that magpies use the human-made version instead. Hiemstra calls this the birds’ “revenge”. “We’re trying to get rid of birds, but the birds are collecting our metal spikes and actually making more birds in these nests,” he said.

7 . 阅读下面短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出 提示词的空白处用括号内所给词的正确形式填空。

A new study shows rapid decline in insect populations. A growing number of the Earth’s insect population now can     1     (see) only in collections on exhibitions. Nobody’s seen those for 400 years. A new review of over 70 studies of insect populations     2       (suggest) that human pressures are causing insect populations to decrease by as much as a quarter every decade. The loss of species is inevitable (不可避免的) because often we don’t know     3     those species are doing or how other species are depending on them.