Unit 1 Part II Using language（课时作业）-【状元桥·优质课堂】2022-2023学年新教材高中英语必修第二册 （外研版2019）

课时作业（二）Unit1 答案精解P11 Part I Using language(限时：4o分钟) 层级一课时语用巩固 I.选词填空（建议用时：4分钟） 9.You will wash your own clothes 1. I hand in my paper now?(be able when you go to college.(must/have to) to/need) 10.You to the meeting this 2.At last,they escape from the afternoon if you have something important to fire.(could/be able to) do.(don't need come/needn't come) 3.The little girl Ⅱ.补全句子（建议用时：3分钟） there alone.(dare 1.It's still early;you not go/dare not to go) 天还早，你没有必要匆忙。 4.I have no bike,so I go to the 2.Since the bus is too crowded,we office on foot.(must/have to) 5.You buy a gift,but you can if 既然公交车太拥挤，我们最好步行回家。 you want to.(mustn't/needn't) 3.You unless you'd like to. 6.You come here on time,or you'll 除非你愿意，否则你不需要见他。 be fined next time.(must/can) 4.She by herself at night. 7.You smoke in this part of the 她不敢在晚上独自一人外出。 hospital.(mustn't/don't have to) 5.The coach should 8.You go to see the doctor as soon other people. as possible.(had better/need) 教练员必须有能力与其他人保持良好关系。 层级二 综合素养提升 Ⅲ.阅读（建议用时：7分钟） royal family to wear it.Purple's unique position There are 195 countries in the world today comes from the rarity and high cost of the dye used and actually none of them have purple on their to produce it.The dye was from a small sea snail national flags.Throughout history,purple was that was only found in the Tyre area of the never used to represent a kingdom. Mediterranean.Over 10,000 snails were needed to So what's wrong with purple?It's such a create just one gram of Tyrian purple;not to popular color today.The answer is really quite mention lots of work went into producing the dye, simple.Purple was just far too expensive. which made purple dye so expensive even for some The color purple has been related to royal royal families.Third century Roman Emperor power and wealth for centuries.Queen Elizabeth I Aurelio famously wouldn't allow his wife to buy a didn't allow anyone except close members of the scarf made from purple silk because it cost three 136 times its weight in gold.