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必修二Unit2WILDLIFEPROTECTION语法专项练习
现在进行时的被动语态
PresentContinuousPassiveVoice
一、根据提示，用正确的时态和语态完成句子
1.Illegalhunting_______________（investigate，正在被调查）bytheauthoritiestoprotectendangeredspecies.
2.Somewildanimalshavebecomeendangeredandtheirhabitats_______________（threaten，正在受到威胁),too.
3.Somewildanimalsareendangeredandtheirhabitats_______________（threaten，已经受到了威胁）.
4.Wildanimals_______________（illegallyhunt，正在被非法猎杀）bysomehunters，leadingtoamassextinctionofthem.
5.Effectivemeasures_______________（take，正在被采取）bytheauthoritiestoprotectthesecreatures.
6.AccordingtoWWF,anaverageofmorethan150species_______________（become，正在变得）extincteverydayintheworld.
7.Thisproblemhasconcernedpeopleverymuch,andemotionsofalarm_______________（stirup，正在被激发）.
8.Underpressure,ways_______________（find，正在被寻找）byhunterstomakealiving.
9.Huntingwildanimals_______________（stop，必须被停止）immediately.
10.Posters_______________（putup，正在被张贴）inthenaturereservethatread：Stophuntingimmediately！
11.Thisnaturereserve_______________（intend，被准备）forgiantpandas；itwill
12.Inthehabitats,thedailyactivitiesofwildanimals_______________(observe,正在受到观察)dayandnight.
13.Ontheplaininfrontofus,wecanjustmakeoutthataherdofsheep_______________（drive，正在被追赶）byawolf.
14.Whalesareverylargemammalsinthesea.They_______________（hunt，正在被猎杀)byfishermen.
15.Beautyisthestateorqualityofbeingbeautiful,andit_______________（find，可以被发现）inourdailylife.betheirhabitat.
16.Whyonearth______theseanimals_______________（shoot，正在被射杀）byhunters？
17.Thesetraps_______________（remove，正在被拆除）byvolunteerstoprotectanimalsfrombeingattacked.
18.Humanbeings_______________（force，正在被迫使）tobeawareoftheimportanceofharmonybetweenmanandnature.
19.Thisnetisdangeroustoinsects.It_______________（remove，必须拆除）immediately.
20.Nowtheirnumbers______________