问题 解答题

根据图形回答

(1)按能否产生种子,将它们分为______和______两类,其中属于前者的是______,属于后者的是______.

(2)在上述植物中,亲缘关系最近的两种植物是______.

(3)上述植物中属于珍稀植物的是______.

答案

(1)自然界中的植物多种多样,根据植物种子的有无和繁殖方式的不同一般把植物分成种子植物和孢子植物,种子植物用种子繁殖后代,孢子植物不结种子,用孢子繁殖后代.其中属于前者的是君子兰、银杏、油菜,属于后者的是葫芦藓、肾蕨、海带.

(2)在上述植物中,君子兰和油菜都属于被子植物,而银杏属于裸子植物,所以亲缘关系最近的两种植物是君子兰和油菜.

(3)银杏为落叶乔木,4月开花,10月成熟,种子为橙黄色的 核果状.银杏是现存种子植物中最古老的孑遗植物.和它同纲的所有其他植物皆已灭绝,号称活化石.

故答案为:(1)种子植物、孢子植物、君子兰、银杏、油菜、

 葫芦藓、肾蕨、海带;

(2)君子兰、油菜;

(3)银杏.

阅读理解

“Who needs a shopping mall (购物中心)if you have Taobao?” says Wang Lin, 28, a writer in Beijing.

Taobao, China’s largest online shopping site (网上风物网站),has become an important part of Wang Lin’s life. She spends lots of money on Taobao.

A growing number of Chinese Internet users like Wang have found the joys of online shopping. Most online shoppers are students or young workers. More women shop on line than men. Clothing and home-use products (产品) are the most popular on line.

It was reported that more than 250 billion (十亿) yuan was spent on online shopping last year, 80% through Taobao.

Taobao means “looking for treasure” in Chinese. People can find almost everything they need on Taobao, from clothes to books, from candies to DVD players.

You may question the security of online shopping, Wang Lin said, “It’s very safe and convenient (便利的). Unless you receive the products from the sellers and are satisfied with them, the shop owner will not get the money. You can also get your money back if you want to return the products.”

根据短文内容,判断句子正(T)误(F)。(共5小题,每小题1分,满分5分)

小题1:Taobao is China’s largest shopping mall.(   )

小题2:The number of Chinese Internet users is growing.(   )

小题3:Taobao is another way of saying “looking for pleasure.”(   )

小题4:The underlined word “security” means “safe”.(   )

小题5:From the passage we know, we can’t return the products if we don’t   like.(   )

问答题