問題詳情

請依下文回答第 41 題至第 45 題： Today, many foods are genetically engineered (GE). GE foods are an example of how science is trying to 41nature. Scientists use a special process to put new genetic information into a plant. 42 , the plant’s DNA, orgenetic code, changes. For instance, to protect a plant from a certain virus, scientists can put a gene into the plant tomake it more 43 to the virus. Such development seems positive. Why then has there been a worldwide negativereaction to GE foods? The answer is simple: genetically changed plants are 44 the same as the original ones. Think of somethinglike GE tomatoes. They may be larger and juicier, but they may contain DNA from plants such as nuts or even fromanimals such as fish. Opponents of GE foods say that the great 45 is for people allergic to substances such as nutsor fish. That tasty tomato could cause an allergic reaction—possibly even death for someone with severe allergies. Yeta person with allergies might never know that the tomato contained the substance.
【題組】 41
(A)develop
(B)improve
(C)observe
(D)protect

參考答案

答案：B
難度：適中0.5
統計：A(1),B(4),C(1),D(2),E(0)

用户評論

【stupid kitten】評論

由後方舉例推知，科學家用基因改造食品來改良天然食物For instance, to protect a plant from a certain virus, scientists can put a gene into the plant to make it more 43 to the virus. (基改抗病毒)

【好想上榜】評論

如今，許多食品都是基因工程（GE）。轉基因食品是科學如何嘗試41(改變 improve)自然的一個例子。科學家使用特殊的過程將新的遺傳信息植入植物中。 42(換句話說In other words )，植物的DNA，成因代碼，變化。例如，為了保護植物免受某種病毒的侵害，科學家們可以將一種基因植入植物中，使其對病毒產生更大的43(抵抗resist)。這種發展似乎是積極的為什麼世界範圍內對GE食品的負面反應呢？答案很簡單：轉基因植物與原始植物44(no longer 不再)相同。想想GE西紅柿。它們可能更大，更多汁，但它們可能含有來自植物的DNA，如堅果甚至是魚類等fromanimals。 GE食品的反對者表示，對於對堅果或魚類等物質過敏的人來說，這一點很45(危險danger)。那美味的西紅柿可能引起過敏反應 - 甚至可能導致嚴重過敏的人死亡。然而，過敏的人可能永遠不會知道番茄含有這種物質。

【Verna】評論

(A)develop  發展(B)improve  改良；改進(C)observe  觀察(D)protect  保護