熊佳參考答案：一、1. 8000906000 八十億零九十萬零六千 800091萬 2. 4 5 3. 公頃 平方千米 平方米 4. 鈍 2 2 5. 1 無數(shù) 6. 30 7. 5cm 8. 100 9.> < < = 10. 125° 55° 35° 11. 90千米/時 90千米每時二、1. × 2. × 3. √ 4. × 5. √ 三、1. A 2. A 3. B 4. B 5. A 四、1. 5 72000 0 64 60 10000 60 2

1. — ________ do you go for a trip with your family？—About once a year.A. How often B. How soon C. How much D. How long2. —______will it take you from your school to the library？—About half an hour. So Ill be there by 9 oclock.A.