1、Answer key:Unit 1TextA. CB.18：B D A B B D D CC.18：A D D A D C D BFast Reading：15：D B D D A 610：A B A A D1115：C B B D CHome Reading：14：D A C D 58：D A A BUnit 2：TextA. BB.18：D D B C D C C A C.19：B A D D A C A A CFast Reading：15：D B B D C610：B D B D B1115：C D D B D Home Reading：19：C B D C C D B B DUnit
2、 3：TextA. DB. 15：B A D A B 610：B D D D C D.15：B D D B A 610：C B C A A Fast Reading：15：C B B B A 610:C C D D A 1115:C C D A D Home Reading:19:D B C B D D B D BUnit 4TextA. CB. 17:D D B C D D C C. 15:A B D B B 610:A D D A D 1112:B C Fast Reading:15:D B C C D 610:B D A D D 1115:B A D C D Home Reading:1
3、8:D A D A C B C DUnit 5 Text A. CB. 19:A B D A A D C B D C. 15:D B A B B 610:D A B C B1112:D A Fast Reading:15:C A A B D 610:C B D D C 1115:C D B A B Home Reading17:B C C D B D C Unit 6 TextA. BB. 19:C B C A B D D A D C. 15:B A D A A 610:C B A A C 1112:A BFast Reading15:C A B C D 610:A A D C B1115:C
4、 C D A B Home Reading18:C C D C D A B C Unit 7TextA. D B. 15:A C B D A 610:D C A A C C.15:A B A A C 610:D A C C D1112:A D Fast Reading15:D B D D A610:C D D B C 1115:C C A C D Home Reading:15:C B A D B 610:C D D B C Unit 8Text A.CB.19:C D D C C D C C B C.18:A B D A C A A A Fast Reading:15:C C A C D 6
5、10:B B D A D 1115:B A B D D Home Reading:19:D B D B C C B C D Unit 9TextA. CB. 19:B C C B C D B B A C. 111:D C B A B D A C B A C Fast Reading:15:D C B C A 610:B C C B C 1115:B C D D D Home Reading17:D C D C A B D Unit 10TextA. CB. 15:C D C C D 610:B A C A C C.15:D C D B C 610:A C A D C 1112:B D Fast
6、 Reading:15:D B D C C 610:D C C D B 1115:B D D C A Home Reading19:C A D C B A C B B Unit11TextA. DB. 18:A D A C C D C B C. 15:A B A C B 613:A B A C B D C A A B A D C Fast Reading15:D C D A B610:C C B D A 1115:C C B C A Home Reading15：B C A D B 610:B C D D D Unit12TextA. B B. 18:B B B D D C C C C. 15
7、:C D C C D 613:A C D B A D C A Fast Reading15:B B D D C 610:D B D B C 1115:C D C D D Home Reading15：B C D C C 611:B A D B B C Unit 13 TextA. AB. 18：C D C A D B A B C. 15：C B A D A 610：C A B D B Fast Reading15：CDACC610：CACCD1115：BDBDBHome Reading18：BDBCCBDDUnit 14TextA. CB. 18：DDCA DDABC. 15：DACAD 61
8、1：BABADBFast Reading15：DDABB610：BDDCA1115：DCCCBHome Reading17：CDCDADDUnit15TextA.CB.111：ABBACBCCDBBC.15：BABCC612：AAACDBBFast Reading15：CACCB610：ACCDC1115：DDADAHome Reading18：CDAC DDDCBook FourUnit 1TextA. DB. 18：CCBD CBBAC. 15:ABCDB 610:D D B A A Fast Reading:15:AADCC610:DCABC1115：CBCDAHome reading1
9、5：DCADC610：DBBCAUnit 2TextA.AB.15：BDDCA611：ACADADC.15：ABADC610：BDACB1114：BADBFast Reading15：DDDCD610：DDDAC1115：CDCCCHome reading14：BAAAUnit 3TextA.CB.19：BABCD BABBC.15：AADBA614：CCADB CCADFast reading15：CBBAB610：BADBB1115：BBDADHome Reading15：CACAD610：BABACUnit 4TextA.BB.15：CDBDB611：CADBDCC.15：DBAAB61
10、0：DBABDFast reading15：DBCCD610：BDCBD1115：CACCDHome Reading18：DDCC ADBAUnit5TextA.AB.17：BCADB CAC.15：DCDAB613：ABDADBCAFast reading15：BCACD610：ACBDC1115：ACCCCHome reading15：CBADA610：DBCCAUnit 6TextA.AB.15：DBCBB613：ABCCACBDC.15：ABAAB613：ABCCA CBDFast reading15：BBBDC610：CCCDB1115：DADABHome reading19：BCB
11、DB BBDCUnit7TextA. CB. 18:CAAB DABCC. 15:ADCDA 610:ABBCD 1113:ABCFast Reading:15:ADCBA 610:DBDCB 1115:DBBCDHome Reading:15:DDBDC 610:ABABCUnit 8Text:A. CB. 18: DCBB ACACC. 15:CDACA 610:BDCBB 1112:DAFast Reading:15:DCAAD 610:BCDDC 1115:DDDCDHome Reading:18:ADDD BCDBUnit9Text:A. BB. 18:BADC DABCC. 15:
12、ACBAC 610:DABCA 1115:CABCA 1619:CDBAFast Reading15:ACCDB 610:ABCCD 1115:CBCADHome Reading15:BCDAC 610:BDADDUnit 9TextA.C B.15:CBBCB 610:CBBCCC.15:BACBA 610:DDACA 1114:CBBAFast Reading15:ABBDA 610:CBBDA 1115:DCDDBHome Reading15:CCCAD 610:BDDBCUnit 11TextA.BB.18:BAAC DCBCC.15:DAADB 610:CBACAFast Readi
13、ng15:CABDD 610:ACCDA 1115:CCDDBHome reading19:BDADC DDCAUnit12TextABB.19:DABDD BCDCC.15BAABB 610:CABCB 1115:BACBAFast reading15:DDBBB 610:DDCBC 1115:CBCDAHome reading17:DCCBDBCUnit 13A.BB.19:ABBDC ACCCC.15:ABBAB 610:DACCC 1114:DBDAFast reading:15:DADDD 610:CBCAA 1115:CBBDDHome Reading15:BCDCC 611:BCAABDUnit 14TextA.CB.15:CDBBD 610:DCDDD C.15:CDBAD 610:DAABA 1114:CAADFast Reading15:ACBAD 610:DDBCC 1115:DBCDBHome Reading18:CCCA ACCDUnit15TextA.BB.19:ADCCA CDBBC.15:ABCCA 610:BAADBFast reading15:ACDBA 610:BCCDC 1115:CBADDHome Reading15:ABCCD 610:BBDCA
