Unit 20 New Frontiers（同步讲义）-【创新方案·高中同步创新课堂】2020-2021学年高中英语选修7（北师大版 新课改省市专用）

,+-$#."& !%&" /&#$ (-!-32@G?/2</!A-/:50IG3:6&/:50IG3:6>/25! U-/RM02:382&/RM029 "-3>>34105382&3>>34105/ )-!-7356!A-82!U-@81'58!"-5605 '-285&I?5!V-58 !01" #$23 !-#82'?M82!$?29/156/32@G?/2</8@ A-#0:!$98205324'60T32498205/9 %H53:?23T/1:0GGN'739/GN0<P287G/94/95605 U-#H20993538258!$43T324 4567 !-#;0:35561//N/01:0485605 $H570:285?253G&5605 %;60570:355605 A-#G3P/:!$:68?G97/103:/>82/N !>?@ABC" DEFGCH (-!-:M/0P:!A-5/GG324'60T32458G9 U-82'?M82!"-32 )-!-98/:56/:?243T/?:G3465 A-H570:285?253GH4855856/:5053825605 U-H2099353825856/20>/:8256/G3:5 "-H53:739/GN0<P287G/94/95605 ,+-$#."' NO:=PQ(R) 1STUVW (!)"$&#&$&%!(A)�� XYZK[\ ����! (!)"768/T/1!#5605!$;6/1/!%;6/2 &B605!';6/56/1 (A)"H53:</150325605!#;6/27/73GG:5015 8@@!$;6/56/1:6/<8>/:81285 %;68/T/1939563:Q8I ����A "7605!#76/56/1'3@!$76/1/!%76/2 &7605!'5605!*76/56/1!+7605 ,(:68?G9)48!-(:68?G9)I/50P/2 ����U "5605!#7605!$7605!%7605 &76/1/!'76/2!*;6/56/1!+76/56/1 ,5605!-76N!/015605!/02(:68?G9):5015 ����" "5605!#76/56/1!$(:68?G9)32@81> %76N!&76/56/1 ����' "5605!#5605!$5605!%7605 &76/56/1 ]^_`ab (-!-5605!A-76/56/1!U-687!"-7605 '-76N!V-;605&5605!J-5605!(-7605 W-763<6/T/1!!K-76/1/ )-!-H53::0395605 A-;68/T/1I1/0P:56/G07 U-56057/XGG60T/0561//O90N8@@ "-5605S01N609M18I0IGN@0GG/23GG '-;6/56/16/73GG055/2956/>//5324 V-76/56/1HXGG48I0<P68>/ J-:6/(:68?G9)@323:66/1781P0G82/ (-5605H60T/G8:563:0991/:: NO:=PQ(c) 1STUVW (!)#%*&"$&'+,!(A)"&+ (U)$', XYZK[\ ���� "58>8T/&Y/8MG/:0N5605 #5860T/I//2011/:5/9 $58I/:5?9N324 ]^_`ab (-!-5860T/:5?93/9!A-58I/:5?9N324 U-(:68?G9)I/>09/!"-5843T/ '-60T/I//2:/5!V-(:68?G9)I/:/25 )-!-5860T/I//218II/9 A-H53:M1/93<5/95605!U-H53:7/GGOP28725605 "-$:3:/RM/<5/9 '->/93<32/(:68?G9)I/P/M5I/N82956/1/0<6 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " 8@<63G91/2 !"#$/0!1+234."$#+45 ,+-$#."! !!"" #$%& !!'!#+,$&!V!!K!%)*̂H !!!!A!._ '()* "<01:!#\8I85:!$701!%:501T05382 &?M58!'G3T/ +,-. (-!-":8>/M8::3I3G353/:8@56/@?5?1/781G9 #@?5?18G843:5&>//5324&M1/93<5382& MG025856/>//5324&̂83235 A-"