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2025-01-24 09:57本頁面
【正文】 mp instead of treesB. Hemp is useful for fuelC. Hemp has been cultivated throughout historyD. Hemp is essential for building large ships 4. The main idea of paragraph four is:A. Hemp is used to produce drugsB. Many famous people used to grow hempC. It is illegal to grow hempD. Hemp is useful for producing many things 5. The main idea of paragraph five is:A. Hemp should be illegal because it is dangerousB. Recently, many people have been working to legalize hempC. Hemp was made illegal in 1938D. Marijuana is not a dangerous drug Scanning ExerciseThis exercise practices scanning that means reading very fast to find specific pieces of information. (2 m)QuestionsSelect the answer you think is correct.1. How many species of salmon have bee extinct in BC?A. 27B. 31C. 137D. 142 2. How much of the world39。However, there is a problem: hemp is illegal in many countries of the world. This plant, so useful for fibre, rope, oil, fuel and textiles, is a species of cannabis, related to the plant from which marijuana is produced. In the late 1930s, a movement to ban the drug marijuana began to gather force, resulting in the eventual banning of the cultivation not only of the plant used to produce the drug, but also of the mercial fibreproducing hemp plant. Although both George Washington and Thomas Jefferson grew hemp in large quantities on their own land, any American growing the plant today would soon find himself in prison despite the fact that marijuana cannot be produced from the hemp plant, since it contains almost no THC (the active ingredient in the drug). cables are usually made from wire or synthetic fibres, but scientists are now suggesting that the cultivation of hemp should be revived for the production of paper and pulp. According to its proponents, four times as much paper can be produced from land using hemp rather than trees, and many environmentalists believe that the largescale cultivation of hemp could reduce the pressure on Canada39。Hemp has been cultivated by many cultures for thousands of years. It produces fibre which can be made into paper, fuel, oils, textiles, food, and rope. For centuries, it was essential to the economies of many countries because it was used to make the ropes and cables used on sailing ships。s forestry production goes towards making pulp and paper. According to the Canadian Pulp and Paper Association, Canada supplies 34% of the world39。 scientists estimate, for example, that 137 species of plant, insect or animal bee extinct every day due to logging. In British Columbia, where, since 1990, thirteen rainforest valleys have been clearcut, 142 species of salmon have already bee extinct, and the habitats of grizzly bears, wolves and many other creatures are threatened. Logging, however, provides jobs, profits, taxes for the government and cheap products of all kinds for consumers, so the government is reluctant to restrict or control it.s rainforest is destroyed. That39。閱讀層次訓(xùn)練Michael Wolf Pulp FrictionEvery second, 1 hectare of the world39。s equivalent to two football fields. An area the size of New York City is lost every day. In a year, that adds up to 31 million hectares more than the land area of Poland. This alarming rate of destruction has serious consequences for the environment。Much of Canada39。s wood pulp and 49% of its newsprint paper. If these paper products could be produced in some other way, Canadian forests could be preserved. Recently, a possible alternative way of producing paper has been suggested by agriculturalists and environmentalists: a plant call
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