参考答案
3l D mirror和retie(：non都有“反映”的意思。reflection的动词是reflect，在第一段中出现了两次。vehicle是“交通工具”，device是“装置”， company是“公司”。
32 A 该题问的是：Bruce Hardy为Althouse公交公司工作了多少年了?第四段的第二句话是这么说的：今年，他要庆祝为Althouse公交公司工作30年。
33 c 该题问的是：下面的哪一种说法不符合Bruce Hardy的实际情况?A和B可见于第三段第二行。D可见于第四段的后半部分。c说的是：Bruce Hardy不耐心。第三段说到了Bruce Hardy是一个很好的听众，他总是听着你要说的话。可见，说Bruce.Hardy不耐心不符合实际情况。
34 B 该题问的是：谁创立了Althouse公交公司?A说的是：Larry Althouse.Larry.Althouse是公司的总裁。B说的是：Althouse的祖父。倒数第二段有这样一句话：我(A1th01.1se)的祖父开始经营时只有一辆公共汽车。可见，B是正确答案。
35 D 该题问的是：Althouse公交公司追求的目标是什么?A说的是：尽量多挣钱。B说的是：出名。c：开发业务。D：为社区提供高质量的服务。D可见于倒数第二段。
Don’t Count on Dung
Conservationists(自然保护主义者)may be miscalculating the numbers of the threatened animals such as elephants.say African and American researchers.The error occurs because of a flaw in the way they estimate animal numbers from the piles of dung(粪)the creatures leave behind.
The mistake could 1ead researchers to think that there are twice as many elephants as there really are in some regions according to Andrew Plumptre of the Wildlife Conservation Society(wcs) in New York
Biologist Katy Payne of Cornell University in Ithaca，New York，agrees.‘‘We really need to know elephant numbers and the evidence that we have is quite indirect，”says Payne，who electronically tracks elephants
Counting elephants from planes is impossible in the vast rainforests of Central Africa.So researchers often estimate elephant numbers by counting dung piles in a given area.They also need to know the rate at which dung decays Because it’s extremely difficult to determine these rates.however，researchers counting elephants in one region tend to rely on standard decay rates established elsewhere
But researchers at the WCS have found that this decay rate varies from region to region depending on the climate and environment Using the wrong values can lead the census astray(离开正道)，says Plumptre
He and his colleague Anthony Chifu Nchanji studied decaying elephant dung in the forests of Cameroon They found that the dung decayed between 55 and 65 per cent more slowly than the dung in the rainforests of neighbouring Gabon.If researchers use decay rates from Gabon to count elephants in Cameroon，they would probably find more elephants than are actually around.This could mean estimates in Cameroon are at least twice as high as those derived from decay rates calculated locally，says Plumptre“However accurate your dung density estimate might be.the decay rate can severely affect the result”
Plumptre also says that the dung—pile census should be carried out over a region similar in size to an elephant’s natural range The usual technique of monitoring only small，protected areas distorts numbers because elephants move in and out of these regions，he says“If the elephant population increases within the protected area，you can not determine whether 1t is a real increase or whether it is due to elephants moving in because they are being poached(入侵偷猎)outside.”
Plumptre says that similar problems may also affect other animal census studies that rely on indirect evidence such as nests，tracks or burrows(地洞)
36 The word“threatened”in the first sentence of the first paragraph could be best replaced by
A “endangered”
B “frightened”
C “killed”
D “angered”
37 Why do researchers estimate elephant numbers in an area by counting dung piles?
A Because elephants are difficult to catch
B Because it is not possible to count elephants from a plane.
C Because it is not possible to keep track of elephants.
D Because elephants are shy animals
38 Piles of dung can’t be relied upon when it comes to estimating elephant numbers because
A they are different in size
B they scatter an over the region.
C they are different in decay rate.
D they are different in quality.
39 According to Plumptre，the region over which a dung—pile census is carried out should be
A small enough
B well protected.
C carefully monitored.
D large enough
40 The first word“He”in paragraph 6 refers to
A Andrew Plumptre
B Katy Payne.
C Anthony Chifu Nchanji.
D the writer of the article.