Unit7TheUnknownWorld单词讲解课件沪教牛津版英语八年级下册.pptx

沪教八下英语单词讲解课件unit7TheUnknownWorld

unknown[?n?n??n]adj.未知的例句：Theunknowncanbebothexcitingandterrifying.拓展：well-known著名的；众所周知的e.g.Heisawell-knownscientistinthefieldofphysics.变形：→knowv.知道；了解

alien[e?li?n]n.外星人可数名词例句：Doyoubelievetherearealiensintheuniverse?

astronaut[??str?n??t]n.宇航员；航天员可数名词例句：Manychildrendreamofbecomingastronautswhentheygrowup.

receive[r??si?v]v.收到例句：Ireceivedabeautifulgiftfrommyfriend.用法：receivesth.收到某物receivealetterfromsb.收到某人的来信=hearfromsb.

hill[h?l]n.山丘；小山可数名词例句：Thereisasmallhouseonthetopofthehill.用法：hill指低矮的山丘。mountain通常指比hill大或陡峭的高山。

loud[la?d]adj.响亮的；大声的例句：Themusicistooloud.Pleaseturnitdown.用法：loudadj.响亮的；大声的adv.喧闹地；大声地与loudly同义，一般与speak，laugh，sing等动词连用，且放在这些动词之后。aloudadv.出声地；大声地，aloud没有比较级，通常与read,cry,laugh,shout等动词连用。loudlyadv.大声地，常用来之人声，敲门声或其他各种声音，强调声音高，吵闹；不悦耳等。

explore[?k?spl??(r)]v.探索例句：Scientistsareexploringthedeepsea.变形：→explorationn.探索；探究；勘探e.g.Theexplorationofspaceisveryimportantforhumanbeings.→explorern.探险家；探索者e.g.ChristopherColumbusisafamousexplorer.

bush[b??]n.灌木例句：Therabbithidinthebush.

quiet[kwa??t]adj.安静的例句：Thelibraryisalwaysquiet.搭配：keepquiet保持安静e.g.Keepquiet!Classbegins!变形：→quietlyadv.安静地e.g.Helefttheroomquietly.

round[ra?nd]adj.圆形的；球形的例句：Theearthisround.用法：roundn.一轮；一回合；一场e.g.Theboxerwonthefirstround.

damage[d?m?d?]v.毁坏；破坏例句：Smokingcandamageyourhealth.用法：damagen.损害；损失通常指对人、物或抽象事物造成的破坏或伤害，使其失去原有的价值、功能或美观等。e.g.Thestormcausedalotofdamagetothecrops.

crash[kr??]n.碰撞；相撞例句：Thenewsreportedaseriousplanecrash.用法：crashv.e.g.Thetwocarscrashedintoeachotheratthecrossroads.搭配：crashinto撞上；撞到carcrash车祸

frightened[fra?tnd]adj.惊吓的；害怕的例句：IwasfrightenedwhenIheardthestrangenoise.搭配：befrightenedofsth./sb.害怕某物/某人e.g.Sheisfrightenedofsnakes.befrightenedtodosth.害怕做某事e.g.Hewasfrightenedtogooutaloneatnight