首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
According to the World Health Organisation, malaria, a disease spread by mosquitoes, affects millions of people every year. Ever
According to the World Health Organisation, malaria, a disease spread by mosquitoes, affects millions of people every year. Ever
admin
2013-06-03
44
问题
According to the World Health Organisation, malaria, a disease spread by mosquitoes, affects millions of people every year. Every one knows how irritating the【S1】______made by a mosquito, followed by a painful reaction to its bite, can be. It is【S2】______that so little is known about why mosquitoes are drawn to or driven away from people, given the level of distress and disease caused by these【S3】______. We know that the most effective chemical for protecting people against mosquitoes is diethyltoluamide(避蚊胺 , commonly【S4】______to deer. Although deet works well, it has some serious【S5】______: it can damage clothes and some people are allergic(过敏的 to it.
Scientists know that mosquitoes find some people more attractive than others, but they do not know why this should be. They al so know that people vary in their reactions to mosquito bites. One person has a painful swelling while another, who is bitten by the same mosquito, may【S6】______notice. Scientists have not discovered the reason for this, but they have carried out experiments to show that mosquitoes are attracted to, or put off by,【S7】______smells. In the future, scientists hope to develop a smell that mosquitoes cannot【S8】______. This could be used in a trap so that, instead of attacking people, mosquitoes would fly into the trap and be【S9】______. For the time being, however, we have to continue spraying ourselves with【S10】______liquids if we want to avoid getting bitten.
A hardly B nice C certain D insects
E advantages F shortened G drawbacks H destroyed
I unpleasant J astonishing K detect L immediately
M noise N exciting O resist
【S7】
选项
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/Npg7777K
0
大学英语四级
相关试题推荐
A、Heisgoingtodrivetothecountryside.B、Hewantsafewdaystostaysomewhere.C、Hewantstorentaroom.D、Heisgoingto
A、Computerscience.B、Physics.C、Chemistry.D、Mathematics.A根据选项,推测对话的内容与一个人的专业或者学科相关。对话中涉及到四个专业,但是要听清题目问的是男士现在的专业。因此只能在听清问题中的no
Nooneshouldbeforcedtowearauniformunderanycircumstances.Uniformsaredemandingtothehumanspiritandtotallyunnece
SocialmediapresentschallengetouniversitiesUniversitieshaveanewweaponinthebattletoprotecttheirreputations:thef
Forthispart,youareallowed30minutestowriteacompositiononthetopic:ShouldPrivateCarsBeEncouragedinChina?Yous
A、Sheshouldfindaproperjob.B、Shecanfindanysortofjob.C、Sheshouldgotospendavacation.D、Sheshouldn’twritetoth
TheImportanceofJustBeingThere"What’sthemostimportantthingyou’vedoneinyourlife.’?"Thequestionwasputtome
Asa______womanshewasthenamongthefewmotherswhoencouragedtheirdaughterstotakepartinsocialactivities.
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
A、Theyrefusedtoapologizeforhavingfollowedherthroughthetown.B、Theyregrettedhavingwronglyaccusedherofstealing.C
随机试题
肺胀的病理因素有
A、Marquis反应B、绿奎宁反应C、Vitaili反应D、双缩脲反应盐酸吗啡的特征鉴别反应为( )。
A.清晨B.餐前C.餐中D.餐后E.睡前α-糖苷酶抑制剂适宜给药时间是
关于洗钱罪对象的说法,哪些是正确的?
市区某化妆品有限公司为增值税一般纳税人,2019年1月发生以下各项业务:(1)从国外进口一批高档修饰类化妆品,成交价1380000元,货物运抵境内输入地点起卸前的运费、保险费及相关费用20000元,支付货物进口后的保险费用20000元,取得普通发票。因管
小学教学在义务教育中的地位主要表现在()。
公安机关在查处违反治安管理行为时,应当告知当事人应有的权利主要包括()。
A、 B、 C、 D、 B图形中汉字的部分数依次为1、2、3、4、(5),答案为B。
有三个关系R、S和T如下:由关系R和S通过运算得到关系T,则所使用的运算为()。
Cometsdonotgiveofftheirownlightbutreflectlightfromothersources,suchastheSun.Scientistsestimatethemassofco
最新回复
(
0
)