2019年三年级英语上册 Unit6 Lesson21（1）一课一练 北京版.doc

2019年三年级英语上册 Unit6 Lesson21（1）一课一练 北京版一、给下列单词选择合适的翻译。( )1. number A. 和 B. 数字 C. 铅笔( )2. hundred A. 百 B. 千 C. 万( )3. thirty A. 二十 B. 三十 C. 十三( )4. seventy A. 十七 B. 七十 C. 第七( )5. guess A. 想 B. 喜欢 C. 猜测二、根据图意做计算, 并写出结果。1. 2. 3. 4. 5. 三、根据单词,选择正确的图片,将其序号填入括号里。( )1. seventy A. B. ( )2. number A. B. ( )3. ninety A. B. ( )4. hundred A. B. ( )5. eighty A. B. 四、算一算,选择正确的选项,将其序号填在橫线上。A. sixty B. eighty C. fifty D. ninety五、相一想,写出所缺的单词。1. Fifty plus _ is sixty. 2. One hundred minus _ is eighty. 3. Thirty plus forty is _. 参考答案一、1. B 2. A 3. B 4. B 5. C二、1. twenty 2. sixty 3. eighty 4. thirty 5. ninety三、1A 2A 3B 4A 5B四、1C 2B 3D 4A五、1ten 2twenty 3seventy附送：2019年三年级英语上册 Unit6 Lesson21（2）一课一练 北京版一、拍拍手,读读下面的歌谣。A plus B is 100. A minus B is 20. A is 60, B is 40. A plus B is 90. A minus B is 50. A is 70, B is 20. A plus B is 70. A minus B is 10. A is 40, B is 30. 二、读读写写。三、选择填空。( )1. Look _ the numbers on the blackboard.A. on B. in C. at( )2. _ can guess the missing numbers?A. What B. When C. Who( )3. Fifty _ ten is forty.A. minus B. plus C. and( )4. Forty _ twenty is sixty.A. minu B. plus C. and( )5. The missing numbers _ eighty and seventy.A. is B. are C. am四、照样子, 计算。例: Eighty minus twenty is sixty.1. _2. _3. _4. _5. _五、从方框中选出合适的词填空。minus fifty markers plus erasers1. I have many _. I can draw pictures with them.2. He has three _.3. My friend Jim has _ books.4. Ten _ twenty is thirty.5. Ninety _ thirty is sixty.参考答案一、略二、略三、1. C 2. C 3. A 4. B 5. B四、1. One hundred minus forty is sixty.2. Seventy minus twenty is fifty.3. Ninety plus ten is one hundred.4. Thirty plus forty is seventy.5. Forty plus forty is eighty.五、1. markers 2. erasers 3. fifty 4. plus 5. minus