Unit 3 Period 2 Discovering Useful Structures -2022-2023学年高一英语上学期课后培优分级练（人教版2019必修第二册）

Unit 3 The Internet Period 2 Discovering Useful Structures 培优层级一 基础多维巩固 维度一　单句语法填空 1．A great many machines (produce) by the factory since the technological revolution. 2．Professor Yang (invite) to the film festival twice so far. 3．Up to now, a lot of high­rise buildings (build) in our city. 4．The English song (sing) for many years, but we still like it. 5．More than 50，000 yuan (raise) for the poor family since the group was founded. 6．China's space program (develop) greatly since it sent its first astronaut to space. 7．Over the past three years, more than $10 million (spend) carrying out the project. 8．X­rays (confirm) that he has not broken any bones. 9．In the last few years, thousands of films (make) all over the world. 10．The robots (use) to help humans do some dangerous work since the late 1990s. 维度二　语法与写作 1．虽然我们不知道讨论了什么，但是我们可以感觉到主题已经被改变了。