问题 选择题

生物多样性不包括(  )

A.物种多样性

B.环境多样性

C.遗传多样性

D.生态系统多样性

答案

生物多样性的内涵通常包括三个方面,即生物种类的多样性、基因(遗传)的多样性和生态系统的多样性.生物种类的多样性是指一定区域内生物种类的丰富性,如我国已知鸟类就有1244种之多,被子植物有3000种;不同物种之间基因组成差别很大,同种生物之间的基因也有差别,每个物种都是一个独特的基因库.基因(遗传)的多样性决定了生物种类的多样性.可见B符合题意.

故选:B

阅读理解

There are some special traditions in Hawaii .People are very friendly and always welcome visitors. They give visitors a lei,a long necklace made of beautiful fresh flowers. Men wear bright flowered shirts and women often wear long flowered dresses. There are traditional Chinese ,Japanese and Fillipino holidays and all the holidays from the United States. They call Hawaii the Aloha State. Aloha means both hello and good-bye. It also means “I love you”.

Usually when people from different countries,races and traditions live together,there are serious problems. There are a few problems in Hawaii ,but,in general,people have learned to live together in peace.

Hawaiians get most of their money from travelers,and most of the travelers come from the mainland and from Japan. There are so many peole living in Hawaii now that there are residential(居住的) areas where there used to be farms. Some of the big sugar and apple companies have moved to the Philippines,where they don't have to pay workers as much money. The families of the first people who came from the US mainland own the important banks and companies. Japanese are also buying or starting business.

1、What might be the best title for this text?

A.Hawaii ,the Aloha State          B.Living Hard Together

C.The Flower of Hawaii             D.The Problems of Hawaii

2、The underlined words “a lei”in the first paragraph here refer to____.

A.a friendly and welcome way

B.a long necklace made of beautiful fresh flowers

C.a bright flowered shirt

D.a long flowered dress

3、The author wants to show that____.

A.we should all go to Hawaii to work

B.it is possible to learn to live together in peace

C.it is not likely to live together in peace

D.Hawaii is the only place where there is peace

多项选择题