题目

下列物质中属于纯净物的是（ ） A．溶液            B．合金             C．石油            D．高锰酸钾 答案：【解答】解：A、溶液中有溶质和溶剂，属于混合物；故选项错误； B、合金中有两种或两种以上的物质，属于混合物；故选项错误； C、石油中有汽油、煤油、柴油等，属于混合物；故选项错误； D、高锰酸钾是一种物质，属于纯净物；故选项正确； 故选：D。 【点评】本考点考查了物质的分类，要加强完形填空阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。When Amy wrote her first novel in secondary school, she never imagined that she would become a writer one day. Like many _________ writers on the Internet, the _________ woman got into this online world accidentally (偶然地).Three years ago, Amy worked in a medical industry. Her job kept her busy for six months and left her almost ________ to do for the rest of the year. To fill the time, she started writing ___________ on the Internet. Her first novel was about her neighbours and their life _________ she is familiar with.Amy has been interested in writing ________ she was a child. At first, she just wanted to share her novels ___________ people she knew. Then one day an editor (编辑) of a famous website emailed her, asking her __________ she would like to sell the electronic copyright (授权) of one of her novels. She ________ immediately and the novel was moved to the VIP section of the website. She got $ 1,500 for that.Now Amy is a full-time __________. So far her eight novels have come out online, and five of them ________. “The Internet made me famous and brought me __________,” she said. “I earn much more money now—about $60,000 a year. I am __________ with my career, but there is one problem—that my talent might run out after five years and I’ll have to __________ to work in the medical industry.”“Before that day comes, I’ll keep _________ for the readers with my light and close-to-everyday-life writing style,” said Amy with a smile.【1】A. other B. others C. another D. the other【2】A. 28-year-old B. 28-years-old C. 28 years old D. 28-year old【3】A. something B. anything C. everything D. nothing【4】A. reports B. novels C. diaries D. plays【5】A. who B. what C. that D. whom【6】A. when B. while C. since D. until【7】A. about B. of C. to D. with【8】A. that B. if C. why D. how often【9】A. agreed B. disagreed C. refused D. left【10】A. housewife B. editor C. saleswoman D. writer【11】A. will print B. were printing C. printed D. were printed【12】A. success B. succeed C. successful D. successfully【13】A. unhappy B. angry C. pleased D. proud【14】A. come B. go C. return D. get【15】A. to write B. writing C. write D. written