雅思閱讀模擬試題學(xué)術(shù)類（12）

雅思閱讀模擬試題學(xué)術(shù)類（12） 關(guān)于這個(gè)問(wèn)題下面小編就來(lái)為各個(gè)考生解答下。

雅思閱讀模擬試題學(xué)術(shù)類（12）

Questions 36–40

Complete the summary below.

Choose NO MORE THAN TWO WORDS from the passage for each answer.

Write your answers in boxes 36–40 on your answer sheet.

Sobotka argues that big business and users of helium need to help look after helium

stocks because 36 ……………….. will not be encouraged through buying and selling

alone. Richardson believes that the 37 ……………….. needs to be withdrawn, as the

U.S. provides most of the world’s helium. He argues that higher costs would mean

people have

38 ……………….. to use the resource many times over.

People should need a 39 ……………….. to access helium that we still have.

Furthermore, a 40 ……………….. should ensure that helium is used carefully.

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