2015年英語(yǔ)專八改錯(cuò)練習(xí)題及答案解析(11)

　　下面是2015年英語(yǔ)專八改錯(cuò)練習(xí)題及答案解析(11)，希望考生認(rèn)真訓(xùn)練，獲得不錯(cuò)的復(fù)習(xí)效果。

　　One important outcome of the work on the expression of genes in developing embryos

　　is sure to be knowledge that can help preventing birth defects. Just as promising (26)

　　is the possibility of unraveling the complicated writing (27) of the brain. A mechanic

　　gets valuable insight how an (28) automobile works by rebuilding car engines;

　　similarly, neuroscientists can learn how the brain functions from (29) the way it is

　　put together. The next step pursuing the (30) goal is to find out how the blueprint

　　genes, the home box genes, control the expression of other genes that create the valves

　　and piston of the working cerebral engine.

　　The protein encoded by the latter genes could change the (31) stickiness of the

　　cell surface, the shape of the cell or its metabolism to create the characteristic

　　peculiar to, say, neurons or neural-crest cell. Surface proteins may be the (32)

　　mechanism, whereby similar programmed cells stick together to form specific structures;

　　they might also sense (33)the local environment to help the cell decide what is to do.

　　Clarifying those mechanisms will engage the best talents in (34) embryology and

　　molecular biology for some times to come. (35) What is perhaps the most intriguing

　　question of all is if the brain is powerful enough to solve the puzzle of its own creation.

　　答案與解析：

　　26.preventing改為prevent

　　27.complicated改為complexion

　　28.sight后加into

　　29.neuroscientist改為a neuroscientist

　　30.pursuing后加in

　　31.later改為latter

　　32.similar改為similarly

　　33.去掉is

　　34.times改為time

　　35.if改為whether