问题 解答题

请在下列序号后的横线上填上恰当的内容,将右边的光合作用概念图补充完善.

①______

②______

③______

④______

⑤______.

答案

光合作用的公式如图:二氧化碳+水

有机物(储存能量)+氧气

可见植物的光合作用是在叶绿体里利用光能把二氧化碳和水合成有机物,释放氧气,同时把光能转变成化学能储存在合成的有机物中的过程.其中原料是二氧化碳和水,产物是有机物和氧气. 条件是在光下,场所是细胞的叶绿体.意义:一是完成了自然界规模巨大的物质转变.它把无机物转变成有机物,不仅用来构成植物体的本身,同时也为其它生物以及人类制造了食物和其他生活资料.二是光合作用消耗二氧化碳,释放氧气,从根本上改变了地面上的生活环境,维持了大气中氧气和二氧化碳的相对平衡.

故答案为:

①二氧化碳(或CO2

②氧气(或O2

③光

④叶绿体

⑤平衡

问答题 简答题
阅读理解

Foods from Around the World

Foods that are well known to you may not be familiar to people from other countries. Here are four people’s experiences with foreign food.

Shao Wong is a student in France. He comes from China. “I’d never tasted cheese or even milk before I came here. Cattle are rare in my part of China, so there are no dairy products. I tried milk when I first arrived in France. I hated it! I sampled cheese too, but couldn’t manage more than one bite. I love ice cream, though, and that’s made from milk.”

Birgit is from Sweden. She traveled to Australia on vacation. “I was in a restaurant that specialized in fish, and I heard some other customers order flake. So I ordered some too and it was delicious. Later, I found out that flake is an Australian term for shark. After that pleasant experience, whenever I see a new food I try it out on purpose. You know why? I remember how much I enjoyed flake.”

Chandra is a dentist in Texas. She originates from India. “I’m frightened of eating new foods because they might be made from beef. I’m a Hindu, and my religion forbids me to eat meat from the cow. It’s a sacred animal to Hindus, so that’s the reason I can’t eat hamburgers or spaghetti with meatballs.”

Nathan is American. He taught for a year in China. “My friends gave me some 100-year-old eggs to eat. I didn’t like the look of them at all. The insides were green, but my friends said the color was normal. The Chinese put chemicals on fresh eggs. Then they bury them in the earth for three months. So the eggs weren’t really very old. Even so, I absolutely refused to touch them.”

Life in a new country can be scary, but it also can be fun. Would you sample a 100-year-old egg? Would you order shark in a restaurant?

56. Which of the following sentences is true about Shao Wong?

A. He is a French – Chinese.

B. Cattle are seldom raised in his hometown.

C. He doesn’t like any diary products.

D. He didn’t taste cheese because he hated it.

57. What kind of girl is Birgit?

A. Religious.     B. Brave. C. Confident.   D. Open- minded.

58. Chandra is frightened of eating food made from beef, because _________.

A. It’s against Hindus’ religion.

B. She is a doctor and she thinks beef is not easy to chew and digest.

C. She is an Indian.

D. Hindus think beef is not tasty.

59. The underlined word “Sacred” in paragraph 4 means _________.

A. frightening  B. large    C. man – eating        D.greatly respected

60. What can you infer from this passage?

A. Foods that are well known to you may not be familiar to people from other countries.

B. Despite (虽然) cultural differences in food, have a try and maybe you’ll get used to it.

C. A vacation is a good way to learn about new foods. Be sure to go on vacation more   often.

D. People dislike eating new foods only because their religion forbids it.