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blame for the tomato's poor taste?But even when allowed to ripen (before they are harvested and shipped with great care,modern tomatoesare still tasteless.When researchers looked into this tomato matter,they uncovered a fascinating genetic cause forthe fruit's dullness.What to blame is a gene mutation (discovered accidentally around 70 years ago,ontowhich tomato growers quickly relied.In fact,now the mutation has been deliberately grown into nearly all moderntomatoes.Why?It makes them a uniform and attractively red when ripe.Unfortunately for tomato lovers far and wide,thered-making mutation stops the activeness of an important gene responsible for producing the sugar and smell that areessential for a good smelling and flavorful tomato,as reported in the paper,which was published in the journalScience.When the researchers"turned on"the gene that had stopped working,the fruit had 20%more sugar and 20一30%more carotenoids(胡萝卜素)when ripe.Yet the fruit'snon-uniform greenish color suggest that mainstreamgrowers will not be following suit anytime soon.However,for anyone with a nearby farmer's market,a supermarket that offers traditional produce,or a gardenin the back,there is another choice instead of cardboard-flavored tomatoes.Traditional tomatoes and wild specieshave not had the essence of tomatoes sucked out of them by selective growing-so shop for those or grow them yourself.They may not look like the Disney version of a perfect fruit,but they actually taste like tomatoes.32.Why is a question raised at the end of paragraph 1?A.To introduce the topic.B.To draw a conclusion from comparison.C.To encourage readers to take actionD.To express disappointment at supermarket tomatoes.33.Why are modern tomatoes tasteless?A.They have ripened when pickedB.They are affected by gene mutation.C.They are kept on the shelf for too long.D.They are treated with chemicals for shipping34.What's a disadvantage of the tomatoes the researchers grew according to paragraph 4?A.Taste.B.Color.C.Size.D.Production.35.What's the author's attitude towards traditional tomatoes?A.CriticalB.Unconcerned.C.Curious.D.Favorable.第二节（共5小题；每小题2.5分，满分12.5分）