Unit 2 Developing ideas & Presenting ideas 课时训练-2021-2022学年高中英语外研版（2019）选择性必修第二册

英语·选择性必修第二册 Unit 2　Section C　Developing ideas & Presenting ideas Ⅰ.单句语法填空 1．________ it is healthier or not may require more research. However, organic consumers argue it is better to be safe than sorry. 2．Most people work because it's unavoidable. ________ contrast, there are some people who actually enjoy work. 3．Raynor Winn and her husband Moth became homeless due to their wrong ________ (invest). 4．A young English teacher saved the lives of 30 students when he took control ________ a bus after its driver suffered a serious heart attack. 5．All riders are equipped ________ reflective vests and safety lights. 6．Age is not a barrier ________ achieving one's goal. 7．Professors are not trained nurses, ________ (finance) aid experts or your best friends. 8．Italy, which has a much weaker tradition of immigration, ________ (witness)a sharp increase in immigration in recent years. 9．________ graduation from high school, I designed a website, www.cuddlebuddies.net to promote the project. 10．