题干

生物分类就是依据某一标准将生物分门别类,即把具有相同特征的生物或生物结构归为一类,这是一种重要的思想方法。如图是将7种生物或结构分为A,B,C三类的示意图。下列几位同学的说法,不正确的是(  )

A:C类中,六种生物都具有的结构是细胞膜、细胞质和细胞核

B:将除病毒外的其他6项归为C类的依据是都具有细胞结构

C:将衣藻和叶肉细胞归为B类的依据是细胞内含有叶绿体

D:将细菌、酵母菌、衣藻、草履虫归为A类,其依据是它们都是单细胞生物

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A

同类题5

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    Today we eat on the go, at our desks and even in front of computers. We eat takeout, delivered and packaged meals, ____

    “Over the past three decades, people have started eating out more than ever before and purchasing more prepared foods at the grocery store, which tend to contain more fat, salt and sugar than their home-made foods,” noted US healthy living website SparkPeople.

    ____ It encourages us to value the time we spend preparing, sharing and consuming food, as a recent USA Today article put it. It all started in 1986 with the efforts of Slow Food's founding father, Italian activist Carlo Petrini, who wanted to bring back food varieties and flavors that had gone dark in the face of industrialization. ____ Now, his idea is almost the mainstream.

    Starting at the table, the movement promotes an unhurried way of life founded on the idea that everyone has a right to cooking pleasure, and that everyone must also take responsibility to “protect the heritage (遗产) of food, tradition and culture that make this celebration of the senses possible”, wrote The Phnom Penh Post.

    “____ It means turning down the speed at which we eat and increasing the amount of time we spend dining together with other people,” Althea Zanecosky, spokeswoman for the American Dietetic Association, told The Huffington Post.“ ____ Dinner table conversations keep families together,” noted the Belgian non-profit organization Greenfudge.

A. It is a way to bring back the social togetherness of yesterday.

B. It seems that we have adapted our foods to our fast-paced lives.

C. So, the Slow Food Movement has occurred against this fast-food trend.

D. Slow Food doesn't necessarily mean food that takes a long time to cook.

E. It is based on the idea that we should spend as much time as possible on cooking.

F. It's not only the food itself but also the time we spend dining together that matters.

G. At that time, he asked people to follow a more sustainable (可持续的) living model.