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longtx2018
2 năm trước
1. Underline the cause a highlight its effect in each of the following sentences. Her computer stopped working due to a virus. Environmental pollution mainly affects animal by causing harm to their living environment, making it toxic for them to live. The water is polluted, so the fish are dead. As for animals, plants, and especially trees, can be destroyed by acid rains. She set fire to the curtain first before the whole house burnt down. Human activities have a negative effect on the ecosystem, destroying crucial layers of it and causing an even more negative effect on the upper layers. We can’t see the stars at night because of too much light. The fumes from motorbike, cars make people cough.
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Bài 1 : "Trời cuối đông,vàng úa nhuộm màu buồn vô hạn. Một làn gió lạnh thổi qua : mấy chiếc lá rụng. Mỗi chiếc lá rụng có một linh hồn riêng, một tâm tình riêng, một cảm giác riêng. Có chiếc tựa mũi tên nhọn, từ cành cây rơi cắm phập xuống đất như cho xong chuyện, cho xong một đời lạnh lùng thản nhiên, không thương tiếc, không do dự vẩn vơ. Có chiếc lá như con chim bị lảo đảo mấy vòng trên không, rồi cố gượng ngoi đầu lên, hay giữ thăng bằng cho chậm tới cái giây nằm phơi trên mặt đất. Có chiếc lá nhẹ nhàng, khoan khoái đùa bỡn, múa may với làn gió thoảng, như thầm bảo rằng sự đẹp của vạn vật chỉ ở hiện tại: cả một thời quá khứ dài dằng dặc của chiếc lá trên cành cây không bằng một vài giây bay lượn, nếu sự bay lượn ấy có vẻ đẹp nên thơ. Có chiếc lá như sợ hãi ngần ngại rụt rè, rồi như gần tới mặt đất còn cất mình muốn bay trở lên cành. Có chiếc lá đầy âu yếm rơi bám vào một bông hoa thơm, hay đến mơn trớn một ngọn cỏ xanh mềm mại" A, Đoạn văn miêu tả trên tái hiện lại điều gì ? B, Em hãy chỉ ra những đặc điểm sử vật đã miêu tả trong đoạn văn trên.

CLIMATE CHANGE AND GLOBAL WARMING Climate change Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems, including rising sea levels, severe weather events, and droughts that render landscapes more susceptible to wildfires. The greenhouse effect While other planets in Earth's solar system are either scorching hot or bitterly old, Earth's surface has relatively mild, stable temperatures. Earth enjoys these temperatures because of its atmosphere, which is the thin layer of gases that cloak and protect the planet. However, 97 percent of climate scientists agree that humans have changed Earth's atmosphere in dramatic ways over the past two centuries, resulting in global warming The exchange of incoming and outgoing radiation that warms the Earth is often referred to as the greenhouse effect because a greenhouse works in much the same way. Incoming UV radiation easily passes through the glass walls of a greenhouse and is absorbed by the plants and hard surfaces inside. Weaker IR radiation, however, has difficulty passing through the glass walls and is trapped inside, thus warming the greenhouse. This effect lets tropical plants thrive inside a greenhouse, even during a cold winter. Consequences of global warming There are two major effects of global warming: the increase of temperature on the earth by about 30 to 50C (5.40 to 90 Fahrenheit) by the year 2100 are Rise of sea levels by at least 25 meters (82 feet) by the year 2100. Other consequences are listed below: Sea levels are rising due to thermal expansion of the ocean, in addition to melting of land ice. Amounts and patterns of precipitation are changing. The total annual power of hurricanes has already increased markedly since 1975 because their average intensity and average duration have increased. Changes in temperature and precipitation patterns increase the frequency, duration, and intensity of other extreme weather events, such as floods, droughts heat waves, and tornadoes. Higher or lower agricultural yields, further glacial retreat, reduced summer stream flows, species extinctions. Diseases like malaria are returning into areas where they have been extinguished earlier Sources: Wikipedia | Time for change Circle the correct answers. 1.Climate change is the rise in average surface temperatures on Earth. a. true b. false 2. Climate change observed in the last decades is natural. a. true b. false 3. Fossil fuels are burnt which releases carbon dioxide and other greenhouse gases into the air. a. true b. false 4. Greenhouse effects have no impacts on our health. a. true. b. false 5. Earth's surface has relatively mild, stable temperatures while the others are not. a. true b. false. 6.UV radiation and IR radiation easily passes through the glass walls of a greenhouse and is trapped inside causing greenhouse effect. a. true b. false 7. Sea levels are rising because of ice melt and thermal pollution. a. true b. false. 8. Global warming causes the increase of temperature on the earth and the rise of sea levels. a. true b. false 9. Humans have changed Earth's atmosphere in dramatic ways over the past twenty centuries. a. true b. false 10. Global warming can cause some diseases like malaria. a. true b. false GIÚP EMMM

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