Unit 5 Safety Lesson 3（作业）人教版（SL一年级起点）四年级英语上册

Unit 5 Safety Lesson 3 课后作业 班级：___________ 姓名：___________ 一、给下列单词选择正确的字母组合。 ( )1. u___e (使用) A. s B. z C. i ( )2. s___fe (安全的) A. e B. a C. i ( )3. f___ ___e (火) A. er B. or C. ir ( )4. cl___mb (爬) A. a B. i C. e ( )5. d___ ___gerous (危险的) A. on B. en C. an ( )6. sidew___ ___k (人行道) A. pr B. al C. ao 二、单项选择。 ( )1. The light is ___________. Please stop. A. red B. blue C. green ( )2. Please use the sidewalk. It's ____________. A. Dangerous B. good C. safe ( )3. Don't ___________ down the stairs. A. play B. run C. use ( )4. Don't climb ___________ the window ledge. A. on B. in C. with ( )5. Please ___________ for the green light. It's safe. A. look B. wait C. do 三、连词成句。 1. window, climb, the, Don't, ledge,on(.) 2. tree, climb, the, Don't (.) 3. Please, green, the, wait, light, for (.) 【参考答案】 一、1-6 A B C B C B 二、1-5. A C B A B 三、1. Don't climb on the window ledge. 2. Don't climb the tree. 3. Please wait for the green light. $$