问题
选择题
如图所示，小胖做出这种错误判断的原因是
A．光只有在空气中才沿直线传播，而在水中不能沿直线传播
B．光射到水面上发生反射缘故
C．光由水进入空气中发生折射的缘故
D．光由空气中进入水中发生折射的缘故
答案
C
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如图所示，小胖做出这种错误判断的原因是
A．光只有在空气中才沿直线传播，而在水中不能沿直线传播
B．光射到水面上发生反射缘故
C．光由水进入空气中发生折射的缘故
D．光由空气中进入水中发生折射的缘故
C
| 阅读理解。 | |
| |
| 1. On Sunday the zoo opens at ______. | |
[ ] | |
| A．10:00 in the morning B．8:00 in the morning C．6:00 in the afternoon D．8:00 in the afternoon | |
| 2. If you are 13, how much do you pay to go into the zoo? | |
[ ] | |
| A．3 dollars. B．6 dollars. C．8 dollars. D．Nothing. | |
| 3. Which of the following statements is true? | |
[ ] | |
| A．The zoo opens longer on Saturday and Sunday than on other days. B．Children under 8 can go into the zoo at any time without paying anything. C．Adults have to pay 17 dollars to go into the zoo. D．You can't take a train to the zoo on weekdays. | |
| 4. If Lucy is 14 and her brother is 7, how much do they pay for the train ride? | |
[ ] | |
| A．2 dollars. B．4 dollars. C．6 dollars. D．8 dollars. |