Unit2 高频词汇课件（五).pptxVIP

;设计说明;Unit2高频词汇一览;导入;导入;词源;语义网络图;精准释义;underattack受到攻击

Whenaleafyplantisunderattack,itdoesntsitquietly.(2017全国II)当叶子植物受到攻击时,它不会静静地坐着。

Inthe1960s,scientistsproposedthatpredators(捕食者)atthetopofafoodwebhadasurprisingamountofcontroloverthesizeofpopulationsofotherspecies---includingspeciestheydidnotdirectlyattack.(2019天津)在20世纪60年代,科学家们提出,处于食物链顶端的捕食者对其他物种的数量有着惊人的控制——包括那些它们没有直接攻击的物种。这是一个明确的基于行动的目标,你可以很容易地衡量你的成功。;词汇拓展;词根词缀：at(去,在)+tack(大头钉,钉住)：用钉子扎某人——攻击,袭击;Istarteverysummerwiththebestofintentions:toattackonebigbookfromthepast,aclassicthatIwassupposedtohavereadwhenyoungandambitious.(高考浙江卷11月2018阅读)

Assoonassheopenedthedoor,RileydashedintotheboysroomwhereAnnfoundJacksufferingfromaheartattack.(高考山东卷2014阅读);一、写出下列句子中attack的汉语释义。

1.Sosuddenwastheattackthattheenemyhadnotimetoescape.(2009山东)攻击；袭击

2.Herheartbegantobeatwildly,asifshewerehavingapanic(恐慌)attack.侵袭

3.Plantsgrowmoreslowlyinacidic(酸性的)soil,andalsobecomeeasilyattackedbydiseases.(2009江苏)侵袭

4.Thepolicehavebeenstronglyattackedfornottakingimmediateaction.抨击

5.Thatnight,HurricaneSandyattackedtheEastCoast,andRockawaywashitespeciallyhard.(2016北京)袭击;二、在空白处填入1个适当的单词或括号内单词的正确形式。

1.Thecompanyhas________attackforitsdecisiontocutdownitsstaff.

2.HetoldmethatI’dprobablyhave________heartattackunlesslstartedeatingless.

3.Thetravelermayfireatawildbeasttoprotecthimselfincaseheis________(attack).(2014江西)

4.Millessmostfamousplay,DeathofaSalesman,isapowerfulattack____________theAmericansystem.(2011山东);导入;recover[r?k?v?]v.;词源;词源;精准释义;