Passage Four (中等难度)
Questions 16 ta 20 are bused on the follow ing passage.
The rapid growth of clectric cars is good news for air quality and climate change, but there is some potential risk to be aware of.
There is no such thing as an electric vehicle( EV )battery w aste mountain. .. yet. However, the number of EVs set to be sold in the world this year could one day lead to more than 500,000 tons of battery waste, five times the weight of all portable batteries recycled in the European Union annually.
Those lithium-ion ( 锂离子) car batteries must be recycled or they will cause an environmental and safety risk. "It's a challenge because most current generation batteries aren't designed for recycling, " some expert says.
Most EV batteries should last around 15 to 20 years. While their first decade will probably be in a car, some have already gone on to a second life as solar power storage batterics in homes, and more will follow. Still, eventually they will need to be recycled.
Although dumping electric car batteries in landfill is ilgal in the UK, it is unclear whether recycling facilitis can increase fast enough. Gloria Esposito says recycling capacity is"definitely an issue", because in Europe there are just 18 firms looking at lithium-ion battery recycling, some of which recycle only certain metals.
It will be "environmentally disastrous" if there isn't a strategy for deaing with the batterics.What's more, stockpiling ( 堆放) old batteries causes fre risks. Another concern is batteries being exported to a country like India for a legitimate second use, but where no recycling facilities exist when they are spent. "That could be a growing time bomb, especially if things take off quickly, "says someone.
As well as the environmental benefits of mining lower raw materials, recycling would bring an economic opportunity through recovering metals from batteries. "Car-makers are a bit conflicted because they want a competitive advantage, to make the batteries as cheap and high-performance as they can. That might not always come into agreement with making them in a certain set of standards, " says an expert. That is why regulation will be key to manufacturers' decisions and, in turn, how easily we can tackle that future battery waste mountain.
16. Why is it a challenge to recycle current generation batteries?
A. Recycling is too timc-consuming.
B. Being recyclable isn 't required in design.
C. The cost of recycling is too high
D. The recycling technology is outdated.
17. What does "more" (Para. 4) refer to?
A. More cars.
B. More lives.
C. More lithium-ion car batteries.
D. More solar power storage batteries.
18. The mention of“18 firms", (Para 5) suggests
A. a lack of recycling capacity
B. an increase in recycling facilities
C. a lack of rubbish burial places
D. a decrease in recycling firms
19. What's the author's atude toward exporting batteries to other countries?
20. What could be the conclusion of the passage?
A. Manufacturers are often conflicted when making decisions.
B. Regulation will play a crucial role in tackling battery waste.
C. It's hard for car batteries to meet a certain set of standards.
D. Nobody can imagine how easy it 'll be to tackle battery waste.
Part II Vocabulary and Structure (共40小题，每小题1分，共40分)
Directions: There are 40 incomplete sentences in this part. For each sentence there are 4choices marked A, B, C and D. Choose the ONE that best completes the sentence. Then mark your answer by blackening the corresponding letter on the Answer Sheet.
21.that he wasted too much time, the boy decided to stop play ing games from tomorrow.
B. To be realized
C. To realize
D. Having realized
22. Those who have received the first dose of vaccines to take the second in 20 days.
A. are required
B. will require
C. have required
D. had been required
23. He found every body know what had happened.
A. it ncessary ltting
B. it ncessary to let
C. it's ncessary ltting
D. that necessary 10 ltting
24. I think we buy this one. We're not going to find any thing better.
A. might as well
B. had rather
C. are likely to
D. would as well
25. We finally returned to the camp at the foot of the mountain, hungry and
26. Most of the news in today's newspaper, the extinction of rare wild animals.
A. is concerned
B. are conceming
27. We regret _you that the delivery will be delayed two weeks for rough weather.
B. to inform
C. to be informed
D. being informed<
28. Who is that elderly man you when I ran intoyou in the-shopping malVlast Sunday?
A. were talking to
B. had talkedo
C. are talking to
29. It is so noisy outside that the speaker coulan' inake himself s
30, If the rescue team hadn't responded so quickly, the copsequence much worse.
A. had been
B. have been
C. will have beenl
D. would have been
31. It is encouraging that significant progress in medicine over the past five years.
A. there was
C. there have been
D. there has been
32. The patient's wife was anxious he would pull through the operation.
33. Not until the secretary had read the report the truth.
A. she understood
B. did she understand
C. she has understood
D. has she understood
34. Thcory is valuable_ it can provide a guide for practice.
A. now that
B. in that
C. for which
D. in which
35. These big issues ; as soon as the president of the company returns.
A. are discussed
B. are being discussed
C. will be discussed
D. will be discussing
36. All passengers appreciated hot water and free meals w hen w aiting at the station.
A. to be givens
B. to have been given
C. being given
D. having given
37. Three companies have reached an agreement they should share the costs of shipment.
38. Some students often complain that the poem is it is to forget.
A. as easy to remember as
B. as easily to remember as
C. to remember as easy as
D. to remember as easily as
39. The meeting appeared important, but actually it had to do with his business in the least.
C. every thing
D. any thing
40. This is the matter they have talked so much since two weeks ago.
C. about what
D. about which