Whatmanyscientistsbelieveisthatthecontinuedpresenceofw...

問題詳情：

  What many scientists believe is that the continued presence of water allowed the earth to dissolve  46   gases and acids into the oceans and seas. This produces a  47  reaction, which made   48  possible for life to develop.

  That afternoon aboard the train, the cousins   49  down in their seats. Earlier that day, when they crossed the Rocky Mountains, they   50   to catch sight of some mountain goats and even a grizzly bear and an eagle.

  Cowboys from all over the world come to compete in the Stampede. Many of them have a  51  for riding wild horses and can win thousands of dollars in prizes.

  Nobody before Jane fully understood chimp  52  . She spent years  53   and recording their daily activities. Since her   54  she had wanted to work with animals in their own  55.

【回答】

46. harmful   47. chain   48 it   49 settled   50 managed

51  gift   52 behaviour   53 observing   54childhood    55environment

短文改錯

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