Unit3 The world of Science综合检测 2022-2023学年高中英语外研版（2019）必修第三册

必修三Unit3综合检测 一、阅读理解 (要求划出答案依据并分析题型) Chocolate is a kind of food. But do you know it came as a drink at first? It was made from the seeds of cacao (可可) trees. The seeds were first found to be useful about 2,000 years ago. Early Central Americans and Mexicans used the seeds of cacao trees to make a drink that tasted bitter, not sweet. Later on, this drink was made into a sweet drink, known as hot chocolate today. Why does chocolate taste sweet? That’s because a lot of sugar is added. This means that chocolate can be bad for your teeth and health. But it’s proved that chocolate is safe to eat unless you have too much of it. There are mainly three types of chocolate: white chocolate, milk chocolate and dark chocolate. Among the three, white chocolate tastes the sweetest. Milk chocolate is sweet, but not as sweet as white chocolate. Dark chocolate is the least sweet and has the strongest chocolate flavor. Today chocolate is often used in cakes, ice creams, puddings, candies and so on. It is popular with people, especially the young. However, according to a report, chocolate could not be seen any more in the year of 2050. It may disappear because of higher temperatures and drier weather conditions. Some scientists have begun to work hard to save the cacao trees. 26. Chocolate is ________. A. a kind of sport B. a kind of animal C. a kind of music D. a kind of food 27. When were the seeds of cacao trees first found to be useful? A. About 1,500 years ago. B. About 2,000 years ago. C. About 2,500 years ago. D. About 3,000 years ago. 28. Why does chocolate taste sweet? A. Because a lot of sugar is added. B. Because a lot of tea is added. C. Because a lot of oil is added. D. Because a lot of salt is added. 29. What is Paragraph 3 mainly about? A. Types of chocolate. B. Prices of chocolate. C. Sizes of chocolate. D. Shapes of chocolate. 30 What does the underlined word “It” in Paragraph 4 refer to? A. Meat. B. Bread. C. Chocolate. D. Water. 二、翻译句子 1. 我们班将举行一个关于技术和生活的活动。（hold