Unit 1 Weve been hit课后练习答案One. VocabularyI.Phrase1.in flames:burning着火,失火2.a matter of geography:a problem or situation that depends on ones location.事关的问题3.off and on:in an intermittent manner不时地,断断续续地4.give you a hand:help you.帮助II.1.scoffed; 2. dilemma; 3. collapsed; 4. pandemonium; 5. reassuring; 6. rumble; 7. glancing at; 8. meet up with.III.omittedIV.1.A2.D3.C4.B5.D6.C7.A8.