题目内容

4.Jim decided to leave school for various reasons.

分析 由于不同的原因Jim决定退学.

解答 答案是 various.由reason用了复数推断Jim退学有"不同的"原因,根据首字母的限制,选择形容词various表示"不同的".

点评 单词拼写必须在对语境整体理解的基础上抓住指向答案的关键线索,同时注意所选词的形式变化.

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14.Earth Day has come and gone,but it's a fact of daily life that 1.6billion people around would have no electricity in their homes.Instead,most of them use wood,coal or even animal waste to heat and cook in their homes,which also gives off greenhouse gases,causing indoor air pollution that kills 1.6million people a year,most of whom are children and women.
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Ghana,in West Africa,most of the northern half of the country lives without lights.As a result,three out of four Ghanans in the north are without electricity to refrigerate with and to cook with,to study with and to start businesses with.Like  most others around the world in the same situation,these Ghanans use traditional fuels( wood,coal,animal waste) to meet their cooking needs.
What would electricity for everyone around the world cost?The International Energy Agency,which is made up of 28member countries,figures it would run35billion dollars a year from 2008to 2030to reach 
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C.Working together is a way to develop.
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