题目内容
19.Th 115 m Christmas Bird Count is officially underway.The count is an annual investigation of local and migratory(迁徙的)birds and it's orgnized by the National Audubon Society.From December 14to January 5,volunteers will gather in more than 2,000locations in North,Central and South America to count the birds in their area.Each count takes place in a circle about 24kilometers wide.The volunteers follow specific routes within the circle and record the number of individual birds and the different species they see there in a single day.The results are sent to the National Audubon Society and later published on Audubon's Christmas Bird Count website.The data collected during the bird count is a key source Of information for ornithologists,scientists who study birds.
This information is used to develop conservation programs to protect bird habitats and the environment/n general.Data frm the bird count was also used to determine that three species-the Western screech owl,the rusty blackbird and the Newfoundland red crossbill-should be added to Canada's list of species at risk.
The annual bird count was created to protest another Christmas tradition at the very beginning.in the United States in the 19th century,people would often hold"side hunts"on Christmas Day.
Teams of hunters would compete to see who could kill the most birds or other animals that day.In December 1900,Frank Chapman,an American ornithologist,suggested that instead of hunting birds,people should count them.
Twenty-seven people in 25locations joined in the first Christmas bird count Last year,more than 70,000volunteers took part.This year,counts are scheduled to take place in 17countries,ranging from the Arctic to the Antarctic,with most located in Canada and the United States.instead of taking place only on Christmas day,counts are now held on different days for different areas.
25.How long will the 115th Christmas Bird Count last?A
A.About 3weeks. B A single day. C.About a month. D.About 2weeks.
26.What can we know about the Christmas Bird Count from the passage?C
A.It was organized monthly by the National Audubon Society.
B.It was launched by Frank Chapman,a Canadian ornithologist.
C.Its results can be seen on Audubon's Christmas Bird Count website.
D.Only 25people in 27locations took part in the first Christmas Bird Count.
27.Why was the Christmas Bird Count established at first?B
A.To help the scientists who study birds carry out their study.
B To protest the Christmas tradition"side hunts"on Christmas Day.
C.To determine whether the rusty blackbirds are endangered animals.
D To protect bird habitats and the environment from being destroyed
28.What is mainly talked about in Paragraph 5?D
A.The brief introduction to the Christmas Bird Count
B.The origin of the Christmas Bird Count.
C.The purpose of the Christmas Bird Count.
D.The rapid development of the Christmas Bird Count.
分析 本文是一篇说明文阅读,主要讲述了圣诞节鸟类计数活动的由来和发展,以及计数的数据的用途.科学家们根据收集到的数据信息来制定保护方案,保护鸟类的栖息地和环境.而且这个计划正日益扩张,好多国家都参与其中.
解答 25.A 细节理解题.根据第一段From December 14 to January 5,可知从12月14日到1月5日,有23天左右,差不多是3周.故选A.
26.C 细节理解题.根据第二段The results are sent to the National Audubon Society and later publishedon Audubon's Christmas Bird Count website.可知结果将会被送至全国奥杜邦学会,并且之后将会在奥杜邦圣诞节鸟类计数网站发布.故选C.
27.B 细节理解题.根据第四段The annual bird count was created to protest another Christmas tradition at the very beginning.可知年度的鸟类计数最初被创立是为了保护另一个圣诞传统.故选B.
28.D 主旨大意题.根据最后一段Twenty-seven people in 25locations joined in the first Christmas bird count Last year,more than 70,000volunteers took part.This year,counts are scheduled to take place in 17countries,ranging from the Arctic to the Antarctic,with most located in Canada and the United States.instead of taking place only on Christmas day,counts are now held on different days for different areas.可知今年的鸟类计数活动比去年的更盛大,以前鸟类计数活动仅仅在圣诞节举行,而现在可以在不同地区的不同日子举办.由此得出该段主要讲述了圣诞节鸟类计数活动的快速发展.故选D.
点评 本文考察学生的理解推断能力以及细心程度,只要抓住文章的关键词,采用寻读的方法查找细节,就能找到正确答案.
Currently,the world is facing an epidemic (流行病) due to what is considered to be among the most dangerous viruses that humanity has ever faced-the Ebola bleeding virus.Though there were announcements about experimental treatments that were reported to be successful in terms of treating the virus,people around the world continue to die from Ebola.
Ebola was first discovered in 1976in Africa,on the banks of the Ebola River,after which the virus has been named.Back then,there were two major outbreaks of the virus,and this is how people learned about it.There exist several strains of the Ebola virus,some of them are deadly to people,and some are not.
The main symptoms of Ebola can appear in a period between the second and the 21st days of infection,but usually it happens on the eighth through 10th day.Among the symptoms that appear in the first turn,one should mention fever and chills,strong headaches,pain in joints and muscles,and general weakness.These symptoms are not too different from those that people usually experience when catching a severe cold,or flu,so victims may even ignore these symptoms,or try to treat them as a common sickness.However,as the virus keeps progressing,a patient develops nausea(呕吐) with vomiting,diarrhea,chest and stomach pains,red eyes and rash over the body,severe weight loss,and bleeding from almost all bodily openings.
The virus is usually transmitted either through blood,or through waste.Infection through blood usually takes place if a person consumes infested meat,or even touches it (for example,butchering can also lead to infection).Also,there were cases when people got infected after stepping in waste of infected mammals,mostly bats.The other ways of getting infected is through skin by receiving bodily liquids via tiny openings.
Even though there is no specific cure for Ebola,doctors still try to treat it.In order to diagnose Ebola,doctors usually take tests on such diseases as cholera or malaria,because it is difficult to diagnose Ebola based only on symptoms.After the diagnosis has been made,doctors start treating the symptoms,which includes killing infected cells,electrolytes,blood pressure medication,blood transfusions,oxygen treatment,and so on.
Though Ebola is a highly dangerous disease,it is not likely that it will spread globally.It is most deadly in anti-sanitary(不卫生的) conditions,which many African countries have an extremely bad reputation for.As for first world countries,even though there is still no universal cure,they are at much lesser risk than African countries.Though the symptoms of Ebola are severe and getting infected is not difficult,with the correct handling of an outbreak,the virus should not be able to spread.
(71)Introduction | ●Ebola,a dangerous virus,was named after the Ebola River,on whose banks it was first discovered. ●Despite the (72)announced/reported success in the virus treatment,people across the world continue to die from the virus. |
Symptoms | ●In the first turn,the symptoms are (73)similar to those that people experience when they are (74)suffering from a severe cold or flu. ●If not (75)taken seriously,the virus will keep progressing,and things will change for the worse. |
Ways of getting infected | ●People (76)consuming infested meat or touching it can get infected. ●People who step in waste of infected mammals,mostly bats,are (77)likely to get infected. ●People who receive bodily liquids via tiny openings can also get infected. |
Treatment and (78)prevention | ●After making correct diagnosis,doctors start treating the symptoms in many ways,(79)including killing infected cells,blood pressure medication,oxygen therapy,and so on. ●Sanitary living conditions play a significant (80)part/role in preventing the outbreak of the Ebola virus. |