Unit 2期末单元复习练习-2022-2023学年高中英语期末复习练习题（上外版2020必修第三册）

期末单元复习练习1CU2 I. Grammar and Vocabulary Section A 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. People are being lured(引诱) onto Facebook with the promise of a fun, free service, ____1____ realizing that they're paying for it by giving up plenty of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send___2___ (target) messages. Most Facebook users don’t realize this is happening. Even if they know what the company is up to, they still have no idea ___3___ they’re paying for Facebook, because people don’t really know what their personal details are worth. The biggest problem, however, is that the company keeps changing the rules. Early on, you could keep everything private. That was the great thing about