阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
People
eat rice all over the world
Rice is believed to have been first grown in China or possibly
somewhere else in eastern Asia around 10,000 years ago. The earliest evidence of
rice farming comes from a 7,000-year-old site near the lower Yangtze River village
of Hemudu in Zhejiang province in China.
Rice is a kind of food which requires much labor. In developed
countries, the planting and harvesting is done {#blank#}1{#/blank#} (most) with machines.{#blank#}2{#/blank#},
in much of the world, these things are still largely done by hand. It takes one
farmer 1,000 to 2,000 working hours {#blank#}3{#/blank#} (raise) a rice crop on 2.5 acres of land.
The fact that rice {#blank#}4{#/blank#} (need) so much labor means {#blank#}5{#/blank#} (keep) a lot of the population
on the land.
Rice is also a crop{#blank#}6{#/blank#} need of lots of water. The wet rice
{#blank#}7{#/blank#} (grow) in most of Asia needs hot weather after a period of rain and conditions
provided by the Asian {#blank#}8{#/blank#} (rain) seasons affect many places {#blank#}9{#/blank#} rice is grown.
Rice straws (稻杆) {#blank#}10{#/blank#} (leave)in the fields add nutrients
(营养物) to the soil after rice is harvested. For
the next crop, rice farmers can often enjoy a good harvest by adding little or no
fertilizer (肥料).