题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式Martin Strel swims with a knife （fasten） to his right leg—in case he meets sharks and other （dead） sea life in the world' wildest waters. 61-year-old marathon swimmer has announced the （tough） challenge of his life: a 10.000-mile-around-the-world journey on water （draw） public attention to the increasing water （pollute）. He aims to circle the globe in about 450 days, passing through oceans, rivers,  （canal） and other bodies of water in more than 100 countries. He will swim about 5 to 12 hours each day, depending on the weather. A boat will go  him and offer emergency support and space for small breaks.Since 2000, Strel （swim） the entire length of five rivers in China, America, etc. Strel will not be alone in the water. He says he welcomes  is interested in joining him for parts of the route. 答案：【1】fastened【2】deadly【3】The【4】toughest【5】to draw【6】pollution【7】canals【8】with/behind【9】has swum【10】whoever

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