九年級英語全冊unit6whenwasitinvented自我復(fù)習(xí)與檢測課件新人教版-文庫吧資料
2025-06-24 14:47本頁面
【正文】 A 自我復(fù)習(xí)與檢測 (六 ) ( ) of the following is TRUE according to the passage? A． The scientists never use DNA technology to keep the special chickens healthy. B． It may take scientists more time to make the drugs perfect. C． Until now, scientists have made three kinds of drugs. B 自我復(fù)習(xí)與檢測 (六 ) ( ) is the passage mainly about? A． It39。 結(jié)合下文 “First, they are cheaper to raise. Second, they need less room and grow faster.” 可推斷 ， 這些特殊的雞比起羊和牛更有優(yōu)勢 ， 故答案為 B。 本文介紹了已經(jīng)研發(fā)的藥品的類型 、 存在的位置以及這種藥品在雞體內(nèi)相較于牛羊體內(nèi)的優(yōu)勢等 ， 并預(yù)測再過五到十年 ，科學(xué)家們會讓這種藥品更加完善 。 skin, hair, milk and meat. The scientists also use DNA technology to make sure that the drugs are only inside the egg whites. In this way, the chickens can stay healthy. 自我復(fù)習(xí)與檢測 (六 ) Besides egg whites, drugs made of proteins e in milk of cows and sheep. Compared with cows and sheep, the special chickens have ascendancy over them. First, they are cheaper to raise. Second, they need less room and grow faster. 自我復(fù)習(xí)與檢測 (六 ) These special chickens can pass on their drugproducing ability to their children. So far, five generations(代 ) of the special chickens have appeared. But scientists may need more time to make the drugs perfect. It39。 自我復(fù)習(xí)與檢測 (六 ) ( ). slow B． healthy C． harmful D． sudden ( ). rule B． plan C． report D． suggestion ( ). search B． worry C． preparation D． love ( ). choosing B． pushing C． repairing D． locking ( ). end B． start C． control D． fall B C D A
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