2022yce英语周报七年级答案

第四部分写作第一节Dear Jack,Welcome to our school to study as an exchange studentAs for how to borrow books from the school libraryyou need to have your student ID card and present it to thelibrarian, who can register for you. Then you can go to thebookshelves to look for what you need. You can borrow 2books once and keep them for a week in order that you canhave enough time to finish reading them. If you haventread the book through, you can renew it. You' ll have topay for it if you get the book damaged or lost.hope all this can be of help to you. For morenformation, don,t hesitate to ask meLi Hua

36.(15分,除标注外每空2分)1)同位素示踪法(1分2)碳碳双键(1分)、醚键〈1分C(1分)2(1分(3)加成反应(1分)CH-C=0+ CH3CHOH-CH3,CH3[答CH2=C=O+CHCH2OH→CH=C(OH)oCH2CH2也给分4)大于(1分氧原子半径较碳原子小,C=O键长更短,键能更大(合理答案均可)N或合理答案均可,不标注13C也给分)40

以上就是2022yce英语周报七年级答案，更多英语周报答案请关注本网站。