E
At Munich Zoo you can watch many different kinks of animals, including the Indian elephants, who help keep the lights on with electricity generated(产生) from their waste. It works like this: The zoo has built three large containers(容器), each able to hold about 100 cubic meters of animal waste — that’s around a week’s worth of waste collected form all the vegetarian animals in the zoo.
Once inside the containers, it’s mixed with warm water, and the bacteria(细菌) in it are left to be broken down in an oxygen-free(无氧) environment for 30 days. The resulting bio-gas rises naturally through holes in the ceiling to a small room on the roof where it’s collected in a “big balloon”. The bio-gas is then fed into a gas-powered engine that’s used to generate electricity. The balloon can store enough bio-gas to meet 5% of the zoo’s energy needs.
“When you turn the bio-gas into electricity, it creates heat which we also store, but could be used to heat about 25 homes,” says park supervisor Dominik Fortster. “The remaining solid matter, or ‘digestate’ is used as an organic fertilizer for crops that will later be used as feed for the animals.” He also says that his is the only zoo in Germany to generate electricity in this way.
The problem is that waste alone does not produce all that much energy relative to its size, says Geraint Evans, a bio-fuels expert. “By the time the food has been digested(消化) by the animal, a lot of the energy in it has been used up,” he said. “It’s more efficient(有效率) to just put the feed directly into the biogas generator.”
Even if the returns are small at this stage, Evans says this project and others similar are still worth it.
71. The underlined word “it” in Paragraph 2 refers to __________.
A. the container B. the warm water C. the animal waste D. the “big balloon”
72. What can we learn about the “big balloon”?
A. It gathers the biogas. B. It collects pure oxygen.
C. It is the symbol of the zoo. D. It makes the engine work fast.
73. We can learn from the third paragraph that ____________.
A. 25 homes are powered by the project B. Munich Zoo is the first zoo to generate electricity
C. the “digestate” is used as the animals’ feed D. the project creates a complete ecosystem
74. In Evans’ opinion, the weak point of the project is that _____________.
A. storing the waste needs too much space
B. it can only use vegetarian animals’ waste
C. the whole process takes as long as 30 days
D. it wastes much energy in generating power
75. It can be inferred form the passage that _________________.
A. “digestate” is a good heating resource
B. only a little energy is left in the waste
C. the containers are made up of animal waste
D. the lights in the zoo are all powered by the project
第Ⅱ卷（非选择题共35分）
第四部分 写作（共两节，满分35分）
第一节 短文填词（共10小题；每小题1分，满分10分）
阅读下面短文，根据以下提示：1）汉语提示，2)首字母提示，3）语境提示，在每个空格内填入一个适当的
英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。
China’s first manned spaceship lifted off at 9 a.m. on Wednesday, October 15th, 2003 in Jiuquan, Gansu (76)
. The spaceship, (77)c
Shenzhou V, was carrying China’s first (78)
(宇航员), Yang Liwei.
The launch was very (79)s
. During the 21-hour space flight, the Shenzhou V circled the earth 14 times. When the spaceship was doing its seventh circle, Yang Liwei showed the flags of China and the United Nations, (80)
(表达) the wishes of the Chinese people to explore and use space (81)p
.
At 6:23 a.m. on October 16th, Yang Liwei landed in Inner Mongolia safely. He told reporters later, “The surface of the spaceship was glowing red when it came back into the earth’s atmosphere. When Shenzhou V let (82)
its parachute, I felt the ship was shaking.” As Yang Liwei returned into the earth’s atmosphere, helicopters were flying to (83)
he would land, ready to (84) _____(接) him.
(85)M
of people all over China were watching TV at that time. When Yang Liwei climbed out of the spaceship, he smiled and waved to the crowds waiting for him. Yang Liwei was happy to be home but he said, “I thought 21 hours was too short to stay in space.”
第二节 书面表达（满分25分）
(详见答题纸)
英语学习 http://www.yggk.net/english/
