2022-2023学年江西省吉安市吉州区部分学校联考高二下学期期末英语试题
As the summer travel season rolls in, prices at the gas pump are usually going in the wrong direction for our wallets. That’s when drivers become more concerned about how to squeeze the most miles from their fuel dollars and keep their cars running their best. To help you stay in the know, here are some common questions that our auto-experts often get asked about gas mileage and related topics:
What if I need to carry stuff on my car’s roof?
Carrying things on the roof hurts fuel economy. When tested a 2013 Honda Accord at a steady 65 mph①, it got 42 mpg② with nothing on the roof. Adding even an empty bike rack（架子）dropped the mileage by 5 mpg. And with two bikes on the roof, gas mileage dropped to 27mpg.
Does running the A/C① hurt fuel economy compared with opening the windows?
It depends on-how hard the air-conditioning system has to work. When we measured the fuel-
economy difference, we found that fuel use with the A/C running went up with higher outside temperatures. At 55℃ F, there were unnoticeable differences. But when we measured again on days when the temperature was in the low 70s and high 80s, we got fewer miles per gallon with the A/C on.
How far can I go when my low-fuel warning light comes on?
There is no set rule, but most cars have a reserve of between 1 and 2 gallons of gas when the light goes on, or enough to travel about 40 miles or so at a moderate speed. To maximize those last couple of gallons, we suggest slowing down and maintaining a steady pace.
Can I improve gas mileage by installing a special air filter（过滤器）?
With modern cars, changing your air filter probably won’t improve your fuel economy. When we tested a car to see whether a dirty air filter hurt its gas mileage because of reduced air intake, we found that the car’s fuel economy wasn’t hurt. The engine’s computer automatic
ally made up for the restricted airflow by reducing fuel use to maintain the right air/fuel proportion. We expect similar results from any air-filter change.
①mph: mile per hour
②mpg: mile per gallon
③A/C: air-conditioning
1. The passage is intended to give answers to questions related to _____.
A．how to save fuel
B．what fuel drivers can use
C．how to keep cars working well
D．what mileage is most suitable for a car
2. It is suggested in the passage that ______.
A．a special air filter be installed to improve air intake
B．the engine’s computer be updated as often as possible
C．drivers carry an empty bike rack on the roof just in case
D．cars move at a fixed low speed with a warning of low fuel
3. At which temperature is there a most noticeable difference in fuel economy between running A/C and opening the window?
A．40° F
B．51° F
C．55° F
D．73° F
Volunteers make sweaters for elephants in India
It isn’t often that zookeepers call on craftspeople for help. But cold weather at the Wildlife SOS Elephant Conservation and Care Center in northern India was putting elephants at risk. So the center’s staff joined forces with locals to find a creative way to keep the animals warm. Now the elephants are stepping out in style, thanks to volunteers who take advantage of their crafting talents to knit (编织) enormous sweaters to protect the animals.
Wildlife SOS is a conservation group that has been taking action against animal cruelty and saving wildlife in pain since 1995. Their Elephant Conservation and Care Center is dedicated (致力于) to rescuing the gentle giants from abuse and exploitation (剥削) in circu
ses, illegal hunting, and other circumstances where they have been neglected or treated with extreme cruelty. There are currently 20 elephants living at the center, and the staff hopes to take in 50 more of the creatures this year.
Because most of the elephants housed at the center are recovering from injuries or are elderly and weak, they are particularly vulnerable to cold temperatures. When staff reported near-freezing nighttime temperatures this winter, volunteers from surrounding villages began knitting enormous sweaters to keep the elephants warm. The sweaters are large enough to cover the elephants’ backs, bellies, and legs.
Making the sweaters is a big undertaking-each one takes approximately four weeks to create, with volunteers working together on the huge garments. Still, the volunteers make sure that the knits arc not only warm and comfortable, but they are also colorful, and even fashionable. Centered on a common, compassionate goal, the project helps promote a sense of community in all who participate.
4. Why do people make sweaters for the elephants?
A．To dress the elephants up for performances.
B．To help the elephants keep warm.
C．To make the elephants step out in style.
D．To show off their outstanding knitting talents.
5. How many elephants are expected to live at the center at the end of this year?
A．70.
B．50.
C．30.
D．20.
6. The underlined part “vulnerable to” probably means “________”.
A．easy to be harmed by.
B．connected with.
scullC．getting used to.
D．able to deal with.
7. What can we learn from the passage?

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