问题 填空题

请运用你所学的知识,完成下列一组填空:

(1)生活中的碘酒、琼脂都是从______植物中提取出来的,煤是由______的遗体埋藏在地下,经过漫长的年代变成的.

(2)种子植物包括______植物和______植物,果实由______和______组成.

(3)根的尖的结构从下至上依次是根冠、______、______、成熟区.

(4)叶片的结构包括表皮、______、______三部分.

答案

(1)、有的藻类植物是鱼类的饵料,有的可以食用,碘酒、琼脂、褐藻胶等物质也是从藻类植物中提取出来的,同时藻类植物进行光合作用释放大量的氧气,是空气中氧的重要来源.蕨类植物也有很重要的意义,可以食用、药用,做饲料、饵料等,古代的蕨类植物埋藏在地下,经过漫长的年代变成了煤.

(2)、种子植物包括裸子植物和被子植物,其中裸子植物的种子无果皮包被着,种子裸露,无果实.被子植物有果实,果实有种子及包在外面的果皮构成.

(3)、根尖包括四部分,从下到上依次是根冠、分生区、伸长区、成熟区.根冠在根尖的最顶端,有保护作用,分生区具有分裂能力,伸长区的细胞开始伸长,是根生长最快的区域,成熟区生有大量的根毛,是根吸水的主要区域.

(4)、叶片的结构包括表皮、叶肉、叶脉三部分,表皮有上表皮和下表皮,有保护作用,叶肉的叶肉细胞含有大量的叶绿体是光合作用的场所,叶脉里的导管和筛管有运输物质的作用.

故答案为:(1)、藻类;蕨类植物.

(2)、被子;裸子;果皮;种子.

(3)、分生区;伸长区.

(4)、叶肉;叶脉.

选择题
阅读理解

For millions of Chinese Internet users, the penguin is more than a flightless bird from the Antarctic. To them it is the symbol of QQ, the instant-messaging service marking its 10th anniversary.

QQ’s creator, Ma Huateng, 38, is a lover of stargazing, and describes himself as a combination of idealist and realist. “ I’m introverted. My friends believed I was too shy to find a girlfriend,” Ma said. He found a girlfriend, now his wife, through chatting online on QQ. Born in Hainan province, Ma loved watching stars and dreamed of becoming an astronomer. He moved to Shenzhen, along with his parents, in southern Guangdong province when he was in his teens. Ma was impressed by the slogan “ Time is money, efficiency is life” found all over the city. It was the most famous slogan born in Shenzhen, representing China’s reform and opening. The pioneering city provided chances for Ma to watch burgeoning reforms. He saw people carry big bags of cash to buy stocks after China launched a capital market in Shenzhen and Shanghai in the late 1980s. When he graduated from Shenzhen University in 1993, Ma designed a stock exchange software system and sold it for 50,000 yuan ($ 7,3000). He then worked as an IT engineer for five years.

It was in 1998 that Ma realized Internet would transform China and the world, and launched his own company, Shenzhen Tencent Inc. A unit of Tencent, Tencent Holdings Ltd, went public on the main board of the Hong Kong Stock Exchange in 2004. “ China’s reform and opening provided me with a chance to grow the company,” Ma said. The country had only 3 million Internet users when QQ made its debut in 1999, but now China has around 300 million Internet users, Ma said. Hu Qiheng, chairwomen of the Internet Society of China(ISC), said reform and opening not only improved people’s living standards, but also gave them a chance to explore the outside world and a chance for the Internet to boom in the country.

It was in the late 1990s that China’s major Web portals mushroomed, including Sina, Sohu, 163, Tencent and Alibaba. That boom came to sa sudden halt when the internet bubble burst in 2000. “We were under great pressure when the Internet bubble burst. Things have only recovered since 2005,” Ma said. The IT sector was among the first batch of industries in China to experience zero-tariff treatment, meaning that the nation’s Internet sector had to face challenges from international peers.

QQ, with around 450 million users, provides services such as chatting, music, games and QQ currency-an indispensable currency in china’s virtual community. “ Chinese websites have survived the competition with foreign peers over the past ten years, but it will be the next ten years that decide Chinese Internet enterprises’ fate,” Ma said. Domestic enterprises have to compete with international companies on services, innovation and core technology, he said. One of Ma’s favorite films is March of the Penguins-a French documentary directed by Luc Jacquet. He said: “Penguin is a lovely animal to me. It is a combination of love, courage and adventurism.”

1.Which of the following is true about the founder of QQ?

A.Creating an IT company of his own had always been his dream since childhood.

B.He constantly moved from place to place when he was in his teens.

C.The instant-messaging service he created brought him not only money but also a family.

D.He worked for the Shenzhen Stock Exchange after graduation.

2.China’s reform and opening led to the following results EXCEPT_________.

A.a rise in the living standards of Chinese people

B.an opportunity for IT companies to grow

C.potential industrial competition from other countries

D.a chance for people to invest in overseas stock market

3.Which of the following events did actually take place?

A.QQ suffered from a sudden decrease in  the number of users when the Internet bubble burst in 2000.

B.QQ heped China’s Internet take flight.

C.QQ was equipped with the most advanced technology in the world when it made its debut in 1999.

D.QQ went public on the main board of the Shenzhen Stock Exchange in the late 1980s.

4.What can be inferred from the passage?

A.Sina and Sohu will develop services like chatting, music and games in order to survive the future international competition.

B.For the sake of domestic enterprises, the tariff needs to be adjusted to a higher value.

C.Ma Huateng views penguin as a lovely animal because it processes the characteristics that he does not.

D.The 50,000 yuan Ma earned from selling the stock exchange software system might be a part of his initial investment in Tencent.