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项。
During summer days, warmer
temperatures bring pests like mosquitoes. Mosquitoes can cause lots of trouble for
people.. They even can spread many
serious diseases.
An easy way to protect yourself
against mosquitoes is using repellents (驱虫剂). Joseph Conlon, an advisor
of the American Mosquito Control Association, recommends using repellents that are
registered with the Environmental Protection Agency, which ensures that they actually
do no harm to humans. . But some repellents can provide
4-6 hours of protection if the quality of them is excellent.
Mosquitoes are also very
weak. A slight wind from a fan can help keep them away from you. It turns out that
many mosquitoes are not very good fliers..
Another way is to clear all
the standing water (积水) every five days. Conlon explains
that mosquitoes can produce young in water collected in areas as small as bottle
caps. But they have a limited flight range, which means they can't travel far. "The
best way to avoid them is to not have them around in the first place." he says.
If you've got them in your backyard, it's because you're raising them in your backyard.. "If you can't avoid the standing
water around your house, I suggest raising fish that will eat mosquito larvae (幼虫)."
. They've experimented with
male mosquitoes containing some materials that stop females from producing larvae.
"There are not a lot of companies producing new chemicals
or treatments that we can use," a researcher of the experiment
adds. "We need new technologies and
products to get rid of mosquitoes."
A. They usually provide two hours
of protection.
B. Do remember to keep children
away from them.
C. So try to make sure your house
doesn't have standing water.
D. You can wear protective clothing
and keep your windows closed.
E. You can set up a fan in your
house so that mosquitoes can't bite you.
F. Many people hardly sleep well
at night with mosquitoes flying around.
G. The researchers also try to
find high-tech solutions to mosquito population.
答案:【1】F【2】A【3】E【4】C【5】G