B. He parked the truck under the tree.
C. He put the ladder up against the tree.
D. He climbed onto the tree to catch him.
7. What is the best title for the text?
A. Like Father, Like Son B. Once Bitten, Twice Shy
C. A Young Explorer’s Lesson D. A Painful Childhood Memory
C
West Nile isa tropical disease that begins in birds, whichpass iton tomosquitoes that then go
on to infect human begins with a bite. Most people who catch West Nile don’t experience any
symptoms at all,but, if they do, symptoms typically develop between 3to 14 days after a mosquito
bite. About 1 in 150 experiences high fever, shakes and unconsciousness. Some — especially the
elderly and those with weak immune systems — die. That is what made the major outbreaks of
West Nile in the U.S. in the summer of 2012 so terrifying.
The situation wasparticularly bad in Dallas,Texas, where the west Nile virus killed 10 people
andsickened more than 200. The city announced a stage of emergency and began aerial
spraying(空中喷洒)ofachemical to killthe mosquitoes, even though localpeople argued that the
chemical could be moredangerous than the disease.
Why was the summer of 2012 so welcoming tothe West Nile virus and the mosquitoes that
carry it?Blame the weather. An extremely mild winter allowedmore mosquitoes than usual to
survive, while theunusually high temperatures in that burning summerfurther increasedtheir
number by speeding up theirlife cycle. The economic crisis may havealso played a role:
Homeowners who were not able topay their bank debts were forced to give up theirpossessions,
sometimes leaving behind swimmingpools that made excellent mosquito breedinggrounds. The
severity of tropical diseases is alsomatter of whether governments are able — andwilling — to
defend their populations againstinfections. Dallas County was not doing some of the key things to
slow the spread of West Nile, such astesting dead birds and setting mosquito traps to test forthe
presence of the disease.
8. What do we learn about West Nile?
A. Its symptoms usually appear within two weeks.
B. It spreads through air and water in tropicalareas.
C. Over 20% of infected people will suffer severesymptoms.
D. It comes from humans’ touching birds infectedwith the virus.
9. What did Dallas County do to fight off West Nile?
A. They sprayed mosquito killers from the air.
B. They emptied the swimming pools in the country.
C. They encouraged citizens to take antiviral drugs.
D. They asked citizens to stay away from deadbirds.
10. What’s the main reason for the 2012 West Nileoutbreak?
A. The increasing population. B. The government inaction.
C. The economic crisis. D. The weather.
11. How is Paragraph 3 mainly developed?
A. By using figures. B. By giving examples.
C. By offering analyses. D. By making comparisons.
D
Fungi(菌类) are a group of organisms that have no leaves or flowers. In fact, fungi do not
even share the green color that most other plants display. Scientists say that there are over 1.5
million different species of fungi in the world. One interesting thing is that they often interact with
other organisms in order to survive. These relationships are at times beneficial to both organisms.
Other times, the fungus benefits without causing harm to the other organism.
At first, many gardeners would be concerned to know that their plants were colonized (聚居)
by a fungus. This is because some fungi can cause plants to die. In fact, the Irish Potato Famine
was caused by a fungus that killed entire crops of potatoes. However, many plants actually depend
on certain types of fungi to stay fit. The reason for this has to do with how fungi gain food. Unlike
green plants, fungi cannot make their own food. They must absorb minerals from the soil, and
when they do this, they draw the nutrients closer to the roots of the plant, so the plant is able to use
them as well. The fungus also benefits from this relationship. Using the minerals from the soil, as
well as sunlight, the plant is able to produce sugar and other nutrients: Then the fungus absorbs the
nutrients from plant roots and uses them to survive.
Still, for some fungus species, contact with other organisms is essential. And though the fungi
do not provide any benefits for the other organism, they do not harm it either. One example of this
is a species called pilobolus. This fungus relies on other animals to help it reproduce. The
pilobolus grows in animal waste. When it becomes mature ( 成熟的), it shoots its spores (孢子)
away from the waste pile. The spores land in the grass where there are cows. The spores are eaten
by the animal but do not grow while inside the stomach. They travel through the body of the
animal until they are passed in another area, where they continue to grow.
12. What does the underlined word “they” in Paragraph 1 refer to?
A. Organisms. B. Scientists. C. Species. D. Fungi.
13. What can we conclude from Paragraph 2?
A. Fungi can make their own food.
B. Fungi can’t survive without plants.
C. Fungi neither benefit nor harm plants.
D. Fungi are sometimes dangerous for crops.
14. Why does the author mention cows in the last paragraph?
A. To show how fungi can be harmful.
B. To prove that fungi can be found anywhere.
C. To explain how a type of fungus reproduces.
D. To give an example of animals that eat fungi.
15. From which is the text probably taken?
A. A biology textbook. B. An animal magazine.
C. A research paper. D. A finance report.
第二节(共 5小题,每小题 2分,满分 10 分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选