英検２級長文語句補充問題

英検２級長文語句補充問題をやってみましょう。

New Banana

   Although there are many varieties of bananas, most bananas sold around the world are one type-the Cavendish. However, this was not always true. Until the l960s, a much larger and better tasting banana called the Gros Michel was the most popular. (  21  ), a fungus called Panama disease began killing Gros Michel bananas. Soon, the disease had spread so much that fruit companies could no longer produce enough Gros Michel bananas. They started growing Cavendish bananas instead.

   At that time, the Cavendish was not affected by Panama disease. However, recently, a new type of the disease has begun killing Cavendish bananas in parts of Asia, Australia, and Africa. Luckily, it has not yet reached Central America, where most Cavendish bananas are grown. Nevertheless, experts believe (  22  ) there. In response, scientists are looking for a banana to replace the Cavendish, just as the Cavendish replaced the Gros Miche1.   

   To do this, some scientists are trying to change the Cavendish's DNA so that it cannot get sick. However, many people worry that eating foods that have been changed in this way will have negative effects on their health. Therefore, other scientists are trying to use natural methods to create new banana varieties. One such scientist is Juan Aguilar, who helped produce a banana called the Goldfinger, which is not affected by Panama disease. However, because it tastes similar to an apple, it probably (  23  ) the Cavendish. Aguilar is confident he will one day be able to create a new banana that tastes similar to the Cavendish and is safe from disease.

(21)

  1 In contrast

  2 For instance

  3 Unfortunately

  4 Additionally

(22)

  1 the bananas will be safe

  2 the disease will soon arrive

  3 people will get sick

  4 production will quickly increase

(23)

  1 has a better flavor than

  2 has more vitamins than

  3 cannot protect

  4 will not replace