07 Unit 3 Healthy Lifestyle 单元测试-2022-2023学年高中英语教学必备资料（上外版2020必修第三册）

单元测试 一、用单词的适当形式完成短文 Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. Sure, chocolate is a delicious treat, and it’s a main part of some of our favourite desserts. But it’s not exactly a health food, so it should be enjoyed in moderation—right? Well, it turns out that ____1____ (eat) chocolate might actually have a pretty significant health benefit. According to a recent research ____2____ (conduct) by five scientists in Italy, compounds found in chocolate, called flavanols (黄烷醇), can help improve cognitive (认知) performance. Yes, chocolate’s good for your brain. The scientists, studying at the Universities of Rome and L’Aquila, ____3____ (record) research from 10 different studies. The studies assessed people’s performance on cognitive tests before and after eating cocoa or chocolate. The results ____4____ (tell): in nine out of the ten studies, there was a noticeable improvement after the subjects had eaten the chocolate. The scientists found improvements in “general cognition, attention, processing speed, and working memory.” Sounds pretty good to us! And that’s not all. In subjects, especially women, ____5____ performed the tests while sleep-deprived, the flavanols helped fight the negative effects of lack of sleep. And there’s even better news. ____6____ (take) daily over periods ranging from five days to three months, chocolate can produce noticeable long-term improvements in cognition. Older adults, ____7____ memories were already declining, saw an especially great improvement. In fact, the scientists themselves ____8____ (claim) that, after doing this research, they’ve started eating chocolate every day! Now, we’re not saying ____9____ you should start eating chocolate for breakfast, lunch, and dinner—it’s still high in sugar and low i