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新托福阅读词汇150题(65):afford&offer

2015-08-13 10:46:09来源:网络

  【新托福阅读词汇150题(65):afford&offer新托福TPO阅读中,词汇题是重要托福阅读题型。托福阅读词汇题做题需要考生掌握一定的词汇量和做题技巧。本文中新东方在线托福网汇总了新托福阅读词汇150题:afford&offer。

  Paragraph 5: Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal. A survey of known hyperaccumulators identified that 75 percent of them amassed nickel, cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice. Hyperaccumulators run the entire range of the plant world. They may be herbs, shrubs, or trees. Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens. 【TPO5- Minerals and Plants】

  9. The word “afford” in the passage is closest in meaning to (1)

  ○ offer

  ○ prevent

  ○ increase

  ○ remove

  答案见下一页:

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