课时提升作业(二十一) 选修7 Unit 2 (建议用时40分钟) . 单项填空 1. If the injuries are second or third degree burns, it is ________ to get the victim to the doctor or the hospital at once. A. valid B. vital C. various D. vast 【解析】选B。考查形近词辨析。句意: 如果是二度或者三度烧伤, 至关重要的是把伤者立刻送去看医生或送往医院。valid有效的; vital极其重要的; various各种各样的; vast广阔的, 巨大的。根据句意选B。 2. (2017·淮阴中学模拟)Mr. Johnson gave us a report last night, which ________ what he did to what he said. A. related B. joined C. agreed D. satisfied 【解析】选A。句意: 约翰森先生昨天晚上给了我们一份报告, 将他所做的和所说的联系在一起。relate . . . to. . . “将……与……联系起来”符合语境。join . . . with. . . “把……与……连接起来”; agree“同意”; satisfy“使满意”。 3. (2017·南京模拟)We need parental ________ before allowing students to go on field trips. A. enjoyment B. acceptation C. certification D. approval 【解析】选D。句意: 在允许学生实地考察之前, 我们需要得到父母的同意。approval“同意, 赞成”, 符合句意。enjoyment“乐趣”; acceptation“通用意义”; certification“证明”。 |