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