Xiechi Lake, also known as Yuncheng Salt Lake in China’s Shanxi Province,
Now, China wants to transform that online
In an effort
2 . Four Unique U.S. National Parks
Bryce Canyon National Park, Utah
If you’re looking for interesting red and pink rocks, you can’t do better than Bryce Canyon. The national park is known for its attractive rock formations and hoodoos (石林). Some of the best places to visit in the park are the Natural Bridge, Fairyland Canyon, or any of the scenic viewpoints throughout the park.
Death Valley National Park, California and Nevada
It’s the hottest and driest national park in the country, but it’s also a place of beautiful desert sights and interesting natural phenomena, like the sailing stones on the Racetrack Playa. Depending on where you are in the park the climate can be extreme—it's home to snowy mountains, dry desert, colorful flower fields, and cool lakes. You might also recognize it as the planet of Tatooine from the original Star Wars movies.
Petrified Forest National Park, Arizona
Arizona offers way more than just the Grand Canyon. This ancient forest in the middle of the desert isn’t what you’d typically expect-it’s way more interesting. The forest became fossilized (石化) over time as minerals like quartz slowly replaced the wood remains. The result is multi-colored stone logs (原木) that are too amazing to pass up. Just don’t take home any free souvenirs-many visitors are fined by taking rocks.
Great Basin National Park, Nevada
Great Basin National Park might be one of the best parks in the state of Nevada. Just a visit to the Lehman Caves or the Lexington Arch (a rare, giant, above-ground limestone arch) will have you convinced. It’s also known for having some of the darkest skies in the continental U.S., so astronomy lovers will jump at the chance to see the night sky when they visit.
1. What is Bryce Canyon National Park famous for?| A．Rock formations and hoodoos. | B．Beautiful desert sights. |
| C．Multi-colored stone logs. | D．The darkest night sky. |
| A．In Utah. | B．In California and Nevada. |
| C．In Arizona. | D．In Nevada. |
| A．Bryce Canyon National Park. | B．Death Valley National Park. |
| C．Petrified Forest National Park | D．Great Basin National Park. |
I have been in Taiyuan, the provincial capital of Shanxi, for two years since I
Over the two years, I found myself
The city has
I hope more international students come to study in Shanxi University and to live and work in China
1. Where are the speakers?
| A．On a hill. | B．On a snow mountain. | C．On a volcano. |
| A．10 years ago. | B．50 years ago. | C．100 years ago. |
5 . It is always said that China is the homeland of tea, which has a very long history of tea.
➢Color
➢Flavor(味道)
New tea is extremely clear and transparent with strong aroma(芳香), while old tea is characterized by brown color and weak fragrance. Take green tea and black tea for example, new green tea tastes a little bitter first, and then the fresh sweet taste begins to surface gradually, leaving a long and memorable after taste in mouth.
➢Place of origin
There is great gap of quality among various places of origin.
| A．Every tea leaf has its own shape. |
| B．Some varieties are identified by tightness of the leaves. |
| C．It is always advised to select tea from its main producing areas. |
| D．While you’re selecting tea, you should pay attention to following aspects. |
| E．For foreigners in China, drinking tea may seem like simple refreshment(提神). |
| F．Generally, new tea leaves look fresh and pleasing, with light green or dark green. |
| G．On the contrary, if bitter taste takes the lead and fresh sweet taste subsides(减弱), it is black tea. |
6 . By the end of the century, if not sooner, the world’s oceans will be bluer and greener thanks to a warming climate, according to a new study.
At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物) called phytoplankton. Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean’s appearance.
Phytoplankton live at the ocean surface, where they pull carbon dioxide(二氧化碳) into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean’s warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients.
Stephanie Dutkiewicz, a scientist in MIT’s Center for Global Change Science, built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃, it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will turn greener. “Not only are the quantities of phytoplankton in the ocean changing. ” she said, “but the type of phytoplankton is changing.”
And why does that matter? Phytoplankton are the base of the food web. If certain kinds begin to disappear from the ocean, Dutkiewicz said, “it will change the type of fish that will be able to survive.” Those kinds of changes could affect the food chain.
Whatever colour changes the ocean experiences in the coming decades will probably be too gradual and unnoticeable, but they could mean significant changes. “It’ll be a while before we can statistically show that the changes are happening because of climate change,” Dutkiewicz said, “but the change in the colour of the ocean will be one of the early warning signals that we really have changed our planet.”
1. What are the first two paragraphs mainly about?| A．The various patterns at the ocean surface. |
| B．The cause of the changes in ocean colour. |
| C．The way light reflects off marine organisms. |
| D．The efforts to fuel the growth of phytoplankton. |
| A．Sensitive. | B．Beneficial. | C．Significant. | D．Unnoticeable. |
| A．Phytoplankton play a declining role in the marine ecosystem. |
| B．Dutkiewicz’s model aims to project phytoplankton changes. |
| C．Phytoplankton have been used to control global climate. |
| D．Oceans with more phytoplankton may appear greener. |
| A．To assess the consequences of ocean colour changes. |
| B．To analyse the composition of the ocean food chain. |
| C．To explain the effects of climate change on oceans. |
| D．To introduce a new method to study phytoplankton. |
