高中英語module6animalsindanger第一課時introductionreading課后作業(yè)外研版必修5-資料下載頁
2024-12-05 06:07本頁面
【導讀】孩子不受有害網(wǎng)站的影響?！白柚鼓橙俗瞿呈隆?；defend表示“保衛(wèi)”。putoff“推遲”；puton“穿上”；putup“支起；張貼”。onthespot是固定搭配，意為“在現(xiàn)場”。在這期間，我們干什么呢？表示“在??期間”；however“然而”；therefore“因此”；then“那么”。situation指“情形”；translation“翻譯”；expression“表達；表情”；condition“狀
【正文】 Friday quoted scientists as saying. The number of the river dolphins, which are found mostly in the middle and lower reaches of the Yangtze has bee smaller sharply since 1990, with fewer than 100 of them remaining. The serious and difficult condition of the Yangtze dolphins was among the topics discussed at a conference this week in Shanghai. In the 195039。s, there were thousands of river dolphins in the Yangtze, China39。s longest river， but environmental pollution, overfishing, boat propellers(螺旋槳 )and the buildings of dams and sluice(水閘 )gates became a threat to them as well as other species, including bottle173。nosed and white dolphins in China39。s rivers and the South China Sea. The number of bottle173。nosed dolphins in the Yangtze has reduced since 1992 to 700 from about 2,000 and the number of white dolphins in the South China Sea is only about 1,000, the newspaper said. According to scientists, there are more than 40 species of dolphins and whales in Chinese waters. The Chinese government plans to build additional areas along the Yangtze for the threatened species. 1． Since 1992, the number of bottle173。nosed dolphins has reduced about________. A． 700 B． 1,000 C． 1,300 D． 2,00 答案： C 根據(jù)文章第五段可知， bottle173。nosed dolphins 的數(shù)減少了 2021－ 700＝ 1300。reduce to 意為 “ 減少到 ” 。 2． What does the underlined word“threat”mean? A． A possible danger. B． A good help. C． A possible barrier (障礙 )． D． A useful thing. 答案： A 根據(jù)本句的主語 “environmental pollution, overfishing, boat propellers (螺旋槳 )and the buildings of dams and sluice(水閘 )gates” 可知， threat 不可能是有幫助或有用的東西。 3． When people learn the present conditions of river dolphins in the Yangtze River, they will feel ________. A． interested B． angry C． disappointed D． anxious 答案： D 通過文章第三段可以推斷人們的反應。 4． ________is/are a most serious warning to the Yangtze River dolphins. A． Environmental dangers B． Overfishing C． The building of dams and sluice gates D． The shortage of water 答案： A 通過文中第一段中 “...measures are taken to protect them from environmental dangers...” 可知，自然環(huán)境的危險是最嚴重的警告。
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