Unit 4 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 4 History and Traditions 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．My brother rushed out of home with the door (unlock) when his friend called him. 2．Prices of daily goods (buy) through a computer can be lower than store prices. 3．We should pay attention to the physical and mental health problems (cause) by a lack of sleep. 4．Back from his two­year medical service in Africa, Dr.Lee was very happy to see his mother (take) good care of at home. 5．The manager was satisfied to see many new products (develop) after great effort. 6．The teaching buildings (build) in 1960 need repairing. 7．James had some flowers (send) to Sarah on her birthday. 8．Don't worry. It's quite safe skating on the (freeze) lake. 9．When she returned home, she found the window open and something (steal)． 10．When day broke, they found themselves (surround) by their enemies. 维度二　语法与写作 1．他们正