chris二次精读仅供参考欢迎讨论有问题的知识点-p5

1、Lightning is（下定义）abrilliant flashoflightproduced by（因果逻辑）anelectricaldischarge fromstorm cloud（后面闪电定义可跳）. The electrical discharge takes place when the attractive naregiones so t（因果逻辑）the ddenly Lightning is（下定义）abrilliant flashoflightproduced by（因果逻辑）anelectricaldischarge fromstorm cloud（后面闪电定义可跳）.

2、 The electrical discharge takes place when the attractive naregiones so t（因果逻辑）the ddenly （新概念）. The coming together of the iy charged whichwe seeas lightning. （新概念（ofitivelyandnegativelychargedtakesplaceduringthedevelopmentofthestorm1. 排除题According to paragraph 1. all of the following take lightnin

3、ghe development of a flash greatntwoiychargedanincreaseinnegativelychargedparticlesositivelychargedparticles iychargedparticlescomingthereleaseofelectricalheformofvisible2. 词汇题 Thewordhepassageiseaninghuge 巨大的Theseparationofchargedtformsin a stormcloud has（ itivelychargedparticlesdevelopatthetopand（

4、并列逻辑）bottomesnegativelycharged.Recentmeasurementshe field together with laboratory simulations offer a promising explanation of how this of charged particles forms. ppens t small (millimeter-to centimeter-size) pellets of he cold upper（top）regions of the cloud. When these ice pellets fall, some of t

5、hem P P5 文章精读讲解：科技类 (TPO18-R3 ) itively charged negativelychargedmuchsmaller（比较逻辑）ice he center of the cloud. The temperature at the center of ntheicepelletsand（并列逻辑）theicecrystalscauses（因果逻辑）electricalchargestoshiftt（果逻辑）the ice pellets acquire a negative charge and（并列逻辑）the ice crystals charged. T

6、hen muchsmaller（比较逻辑）ice he center of the cloud. The temperature at the center of ntheicepelletsand（并列逻辑）theicecrystalscauses（因果逻辑）electricalchargestoshiftt（果逻辑）the ice pellets acquire a negative charge and（并列逻辑）the ice crystals charged. Then updraft wind currents carry the itively charged ice cryst

7、als up to the top thecloud. The heavier（比较逻辑）negativelychargedicepelletsareleftto he This（指代逻辑s explains why（因果逻辑）the top of the itively while（转折逻辑）the es negatively charged. The negatively charged region is dredmetersthickand（并列逻辑）severalmeter.Belowthislarge, negatively charged region, the cloud is

8、 warmer（比较逻辑n -15, and（并列逻辑因果逻辑these temperatures, s n ice crystals and（并列逻辑）falling ice pellets produce（tthenpopulateasmallregionatthe baseoftheitivelychargedice逻辑3. Accordingtoparagraph2.whatcausesicecrystalseitivelyswithice原文处swithnegativelychargedicecrystalsatthebaseofthecloudABipinghecentralreg

9、ionoftheFormingemperaturen -4. 词汇题 ThewordhepassageiseaningitivelychargedicepelletsartoftheAndA.snicecrystalsandicepelletsincreaseinheartoftheB.TheartofthecloudisntheregionaboveC.Moreicenicecrystalsreachtheartofthe D.heartofthecloudaren -6. 排除题According to paragraph 2, the middle region of a to（因果逻辑

10、）allofthefollowinges negatively charged A. ashiftofelectricalchargesnicepelletsandicenegativelychargedicet heatemperatureD.heartofthecloudaren -6. 排除题According to paragraph 2, the middle region of a to（因果逻辑）allofthefollowinges negatively charged A. ashiftofelectricalchargesnicepelletsandicenegativel

11、ychargedicet heatemperatureof15Corless 温度、因果duethedevelopmentofitivecharge atthebaseofthecloud Most lightning takes place within a cloud when the charge separation he cloud However, as the storm cloud develops, the ground beneath the cloud heformofanelectricaldischargeitively ntheitivelychargedgroun

12、d.tstrikestheisthemostlikelytobedestructiveso（因果逻辑结果）eventhough（转折逻辑）itrepresentsonlypercentofalllightning,sreceiveda lotofscientificncloudand7目的题 The author t t strikes the ground is the most likely to destructiveinordertoexplainwhy（因果逻辑考结果A.thisformoflightninghasbeeninvestigatedsoalotofscientificB

13、.thisformoflightningisnotascommonaslightningwithinaC.scientificunderstandingofthisformoflightningisD. the buildup itive charge on the ground beneath a can have Usinghigh-speedphotography,scientistshavetthereoccurrenceoflightningfromacloudtothe（顺序逻辑）tpathfromthecloudtotheground,and（并列逻辑）itt tillumina

14、testhechannelasthelightningwe8. A. Thewordhepassageiseaningwithincurrentofchannel/twochannel,tworgefromthecloudbasethe ground. When a stream of these negatively charged electrons comes within 100 meters of ground it is met by a stream thergefromthecloudbasethe ground. When a stream of these negative

15、ly charged electrons comes within 100 meters of ground it is met by a stream the negatively and（并列逻辑itively charged t comes up from the ground. itively charged streams meet, a complete channel connecting cloudand（并列逻辑）thegroundisformed.Thechannelisonlyafew（转折逻辑t is wide enough for electrons to follo

16、w the channel to the he visible of a flash of lightning. The stream itive t meets the surge of electrons from cloudoftenarisesfromatalloftenstrikesatallstructure.tfollowsthecompleted9. 细节题Accordingtoparagraph5.which ofthefollowingistrueofthestreamofchargedfromtheItpreventsstreamsofelectronsfromthecl

17、oudfromstrikingtheItcompletesatconnectsthestormcloudwiththeIt astreamofelectronsfromtheItwidensthepathmadebytheinitialstreamofelectronsfromthe10. 推断题Whichofthefollowingclaimsaboutlightningstrikescanbeinferredfromparagraph5During a lightning strike the diameter of the channel the electrons follow is

18、afewAbuildingisunlikelytobehitbylightningunlessiteast100metersAbuildingishitbyalightningstrike becausethebuildingitselfpaththelightningthentakestoso The light of a lightning itiveparticlesappears at the where the streams of negative 11. 推断题It can be inferred from paragraph t part of the reason（因果逻辑t

19、 the top of stormitivelychargedtA.thetopofthecloudis nthemiddleof thecloud channel/B.themiddleofthecloudisalreadyoccupieditivelychargedparticles 中间是-C. the negatively charged ice pellets are too heavy to be carried by the t move D. IP太重，+ics nice hetopofthecloudproduceitivelychargedB.themiddleofthec

20、loudisalreadyoccupieditivelychargedparticles 中间是-C. the negatively charged ice pellets are too heavy to be carried by the t move D. IP太重，+ics nice hetopofthecloudproduceitivelycharged12. Theword“initiated”iseaningstarted 开始=Once a channel has been formed, it is usually used by several lightning disc

21、harges, each of consisting of a stream of electrons from the cloud meeting a stream itive particles along established path. Sometimes, however（转折逻辑可提至最前）a stream of electrons following established channel is met byitive stream making athup from theground. The （因果逻辑后为结果）isaforkedtstrikesthewo. 13. 题L

22、ook at the four squaresthet indicate where the following sentence could be added Thedescendingstreamofelectronsdividesatthepo ersects（交叉、贯穿）the established path.Wherewouldthesentencebest14. wheretheitive-streamLightning takes place when a separation developinastormcloudsuddenlyitive and negative electrical tA storm develops itively charged layer at the top then a negatively middlelayerandfinally,itivelychargedlayeratthestorm、+-