阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
As we all know, Columbus was a great
explorer. He left Spain in September 1492,{#blank#}1{#/blank#} (look) for gold. Native Americans greeted him, offering
gifts of corn. Columbus found little gold on that trip, but he collected many {#blank#}2{#/blank#} (plant), including corn, to bring back to Spain.
Columbus didn't know it, but the corn
was much {#blank#}3{#/blank#} (valuable) than gold. Farmers from
Europe to Asia accepted it {#blank#}4{#/blank#} (immediate). They grew it on cold
mountainsides and in rainforests. So it {#blank#}5{#/blank#} (feed) millions of people all over the world today.
On his second trip, Columbus brought
back a few chocolate beans to make chocolate. Europeans and Asians loved this
new drink, and soon they were paying a great deal of money for the beans.
Chocolate beans became so valuable in Central America {#blank#}6{#/blank#}
they {#blank#}7{#/blank#} (use)as cash for 200 years.
Tomatoes and potatoes took some time to
become popular. Eventually, {#blank#}8{#/blank#}, they became the basis of a lot of
popular foods. {#blank#}9{#/blank#} is hard to imagine life without fried
potatoes or chocolate. Thanks{#blank#}10{#/blank#} native American culture, many people
are able to enjoy lots of tasty food.