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1、Unit 5 Into the WildThe Monarchs JourneyMany animals move from one place to another at certain times of the year. This annual movement is called migration. They migrate to find food, seek a partner, or in search of warmer weather. One of the most wonderful migrations in nature is that of the North A
2、merican monarch butterfly.Every autumn, millions of these beautiful insects with fine black and orange wings begin a long and difficult journey. Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico. However, until recently no one knew how they did th
3、is.A team of scientists led by Professor Eli Shlizerman at the University of Washington has now found the answer. They have found out that the monarch is able to tell the time of day. It uses its eyes to measure the position of the sun. These two pieces of information the time of day and the point w
4、here the sun is in the sky allow the butterfly to determine the way to go. Eventually, it manages to reach the places where it will spend the winter.The solution to the mystery of the monarchs amazing ability comes at a time when it is in serious trouble. Its population has crashed by as much as 90
5、per cent in the last few years. Sadly, human activity is the main reason why the number of monarch butterflies is falling. In many of the places where the butterfly can be found, people are destroying the natural environment. They cut down trees and use chemicals that kill the plants that monarch ca
6、terpillars eat.The research on the monarchs behaviour has however led to a greater awareness of this creature. People have been working together to record its migration and make sure that there are enough plants for it to feed on. If this works, there may come a time when the number of monarch butte
7、rflies increases once again. The more we know about this lovely creature, the greater the chance it will survive and keep its place in the natural world for a long time to come.An Encounter with NatureAs a nature photographer, I have to brave the elements. But despite the wind and the rain, I still
8、enjoy working outside in the wild. One of the best things about this job is that you can observe animals in their natural environment.My favourite place to take photos is Yellowstone National Park. As the worlds first national park, Yellowstone is famous for the variety of its wildlife, but it is pr
9、obably best known for its bears. These huge, strong animals can live for 30 years. Despite a weight of up to 300 kilograms, they can run at a speed of around 64 kilometres per hour and are also excellent swimmers.Last spring in Yellowstone, I followed a path that took me through a dark forest. When
10、I finally stepped out of the trees, the view was breathtaking. An eagle flew over the snow-capped mountains, which were reflected in the still lake below. While I was concentrating on photographing this amazing scene, I suddenly had a feeling that I was being watched. Slowly, and with the camera sti
11、ll held to my eye, I turned. and froze. Only meters away from me was a bear. With water falling off its thick, brown hair, the bear stared back at me. Time stood still as the bear and I both waited to see who would move first. My legs started shaking. Somehow, I forced my finger to press the button.
12、 A second later, the bear turned and ran back into the forest. When I recovered from the shock, I looked at my camera. My most frightening but magical experience was now captured forever in a single image.From time to time I look at the photo as a reminder to show respect to all animals. It is after
13、 all we who are the visitors to their world.A DAY IN THE CLOUDSThe air is thin and we have to rest several times on the short hike from camp. To our left, snow-covered mountains disappear into clouds that seem almost close enough to touch. On the plain in front of us, we can just make out a herd of
14、graceful animals. This is why were here一to observe Tibetan antelopes.Tibetan antelopes live on the plains of Tibet, Xinjiang, and Qinghai. Watching them move slowly across the green grass. Tm struck by their beauty. Tm also reminded of the danger they are in. They are being hunted, illegally, for th
15、eir valuable fur.My guide is Zhaxi, a village from Changtang. He works at the Changtang National Nature Reserve. The reserve is a shelter for the animals and plants of northwestern Tibet. To Zhaxi, the land is sacred and protecting the wildlife is a way of life. Wee not trying to save the animals/9
16、he says. Actually, were trying to save ourselves.The 1980s and 1990s were bad times for the Tibetan antelope. The population dropped by more than 50 percent. Hunters were shooting antelopes to make profits. Their habitats were becoming smaller as new roads and railways were built.In order to save th
17、is species from extinction, the Chinese government placed it under national protection. Zhaxi and other volunteers watched over the antelopes day and night to keep them safe from attacks. Bridges and gates were added to let the antelopes move easily and keep them safe from cars and trains.The measur
18、es were effective. The antelope population has recovered and in June 2015, the Tibetan antelope was removed from the endangered species list. The government, however, does not intend to stop the protection programmes, since the threats to the Tibetan antelope have not yet disappeared.In the evening,
19、 I drink a cup of tea and watch the stars. I think about the antelopes and what Zhaxi told me. Much is being done to protect wildlife, but if we really want to save the planet, we must change our way of life. Only when we learn to exist in harmony with nature can we stop being a threat to wildlife a
20、nd to our planet.Give Ugly a Chance!When it comes to wildlife protection, all species-the good, the bad, and the ugly-should be treated equally. Pandas, dolphins, and other cute wildlife are important, but we must pay attention to less cute animals, too. The world needs all kindswithout variety, our planet cannot survive. So if you want the future to be beautiful, you have to give ugly a chance.写作假设你是李华，你校国际部所有交换生将开展主题为“野生动物保护”的交流会，你将 作为学生代表发言，请写一篇发言稿，内容包括：1 .保护野生动物的重要性；2 .保护措施；3 .其他。注意：1 .写作词数应为80左右；2,可以适当增加细节，以使行文连贯。Dear fellow students,Thank you for your attention!