You may not use any of the words more than once.A commercial F genetic K skepticalB deficiency G miracle L soaredC devotion H nurture M tendedD eradicate I offspring N traitsE focused J priority O yieldsOn a hot summer day in 1961 when he was inspecting a test field in Hunan, Yuan Longping came across a single rice plant bearing 230 grains. He carefully collected all the grains and planted them the following spring, hoping to find a way to increase rice 1) ___. The resulting new plants showed a variety of useful 2) ___, but to his disappointment, none was as productive as the parent plant.At that time, some people were 3) ___ about hybridizing rice. However, Yuan Longping, with his knowledge of 4) ___ engineering, was confident about hybrid rice. He believed that crossbreeding was universal and that it would always lead to stronger 5) ___.Then Yuan Longping 6) ___ on developing hybrid rice. The first breakthrough (突破) came in 1970, when his team found a male-sterile wild rice plant in Hainan. Having carefully 7) ___ the plant, Yuan Longping successfully developed a good quality hybrid-rice strain in 1973.Thanks to his efforts, about eight million hectares of hybrid rice have since been grown in more than 60 countries. Yuan Longping's 8) ___ to developing hybrid rice has helped 9) ___ poverty and solve the problem of food 10) ___ in both China and the world.

Banked cloze 5 Fill in the blanks by selecting suitable words from the word bank. You may not use any of the words more than once. A commercial F genetic K skeptical B deficiency G miracle L soared C devotion H nurture M tended D eradicate I offspring N traits E focused J priority O yields On a hot summer day in 1961 when he was inspecting a test field in Hunan, Yuan Longping came across a single rice plant bearing 230 grains. He carefully collected all the grains and planted them the following spring, hoping to find a way to increase rice 1) ___. The resulting new plants showed a variety of useful 2) ___, but to his disappointment, none was as productive as the parent plant. At that time, some people were 3) ___ about hybridizing rice. However, Yuan Longping, with his knowledge of 4) ___ engineering, was confident about hybrid rice. He believed that crossbreeding was universal and that it would always lead to stronger 5) ___. Then Yuan Longping 6) ___ on developing hybrid rice. The first breakthrough (突破) came in 1970, when his team found a male-sterile wild rice plant in Hainan. Having carefully 7) ___ the plant, Yuan Longping successfully developed a good quality hybrid-rice strain in 1973. Thanks to his efforts, about eight million hectares of hybrid rice have since been grown in more than 60 countries. Yuan Longping's 8) ___ to developing hybrid rice has helped 9) ___ poverty and solve the problem of food 10) ___ in both China and the world.