Ⅵ.任务型阅读
阅读并根据下面的短文,在表格中的空格里填入一个最恰当的单词。
Do you know about space vegetables? Have you ever eaten them? Some people worry about eating space vegetables. They think that they may be bad for us. In fact, there's no need to worry about space vegetables. Here are some facts that we should know about space vegetables.
In space, plants can grow faster and bigger without the influence of Earth's gravity(引力). People take the seeds to space and then get them back. Then space vegetables grow fast from these stronger seeds and become bigger and healthier.
Scientists believe that the vegetables will be safe to eat after they bring back these seeds. And there is no radiation(辐射) in them.
Space vegetables are different from genetically modified(转基因的) food. The genes(基因) of them don't change. This means that no new genes are put into the space vegetables, so they are much safer.
Space vegetables are better for us than normal vegetables. For example, space tomatoes will be fine for twenty days. That's one week longer than normal tomatoes.
Also, space vegetables have much higher yield(产量) than Earth vegetables. That means, space vegetables can help us solve the problem of future food supply and help build a healthier diet.
In a word, space vegetables are a great way to help us meet our needs in the future.
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