1 . 阅读下面小短文，根据上下文语境，选择合适的单词填入空白处，每个单词只使用一次，每个语篇有一个是多余的选项。

Mankind has been exploring space to find out the secret of the     1     and has    2     a lot of satellites into space, which can transmit     3     to scientists on earth. However, exploring space is dangerous and challenging. These disasters made everyone     4    , but the     5     to explore the universe never ends.

Li Ning was disappointed because he didn’t perform well in the 1988 Seoul Olympics. But it was this sense of failure     1     made him determined to succeed in his new life. A year after   his    2     (retire), Li Ning began a new career—as a       businessman. But he didn’t forget his sporting background. He decided to launch a new brand of sportswear,     3     (compete) with global giants like   Nike   and Adidas. He made the unusual    4     (choose), for a Chinese person, of choosing    5     own name as the brand mark. The bright red logo    6     (make) up of the first two pinyin letters of Li Ning’s name, L and N.   Li Ning’s sports clothes came onto the market at just the right time. The number of young people with money to spend was on the increase—and sport had never been so popular. Li Ning’s designs were    7     (attract), and they   had a major   advantage     8     their better-known rivals – they were     9     (cheap).     10     pair of Nike trainers( 运 动 鞋 ), for example, could cost up to five times as much as a similar Li Ning product. Success for Li Ning came quickly.