2021-2022英语周报八年级新目标AHW安徽专版答案

1.C【必备知识】细胞中的元素和化合物【解题思路】细胞中的B、Fe、Cu等微量元素的含量很少，但必不可少，A正确；生物大分子的基本骨架都是碳链，B正确；胰岛素的化学本质为蛋白质，但性激素属于固醇类激素，C错误；糖类是主要的能源物质，其组成元素为C、H、O,D正确。

书面表达One possible versionDear PeterI'm writing to invite you to see the Chinese Painting Exhibition to be held in our city.The exhibition will start at 8: 30 am on Saturday and last till 5: 00 pm on Sunday in the city museum It'ssaid that a large number of Chinese paintings, some of which are original works by famous painters like ZhangDaqian and Qi Baishi, will be on display. Besides, there will be various souvenirs to be sold. I know you re veryinterested in traditional Chinese culture, so I can t wait to tell you the news and hope we can go together.Looking forward to your reply.You

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