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Boys and girls, welcome to Teen Talk. Du you often make friends on the Internet? Do you have difficulties when you are chatting with your net friends（网友）? What problems make you puzzled? Today, Professor （教授） David will give us some advice.
Problems | Advice |
Peter: If a net friend wants to know my phone number. What should I do? | You’d better not tell him/her your phone number. Knowing your phone number, he/she might know where you live, and they can call you or your parents often. Sometimes this will bring you much trouble. |
John: I meet some adults. I have nothing to chat with them. | If you don’t like to talk with them. skip it. And look for some information you like. But sometimes, some adults may give you some useful advice. |
George: If a net friend wants to visit my home or invite me to his/hers. | If you want to see him/her, make sure that at least one of your parents can go with you. |
Victor:What else should we pay attention to（注意）? | If someone asks you not to tell your parents about him/her, you must tell your parents at once. If they don’t tell you much about themselves, maybe they are not who they say they are. |
1．This passage is a ________.
| A．talk show | B．game show | C．sports show |
| A．They don’t know how to talk to the professor. |
| B．They don’t know what to do on the Internet. |
| C．They don’t know what they should do when their net friends ask them to do something. |
| A．忍受它 | B．不用理它 | C．安静地听它 |
| A．be friendly to him/her |
| B．meet him/her alone at once |
| C．make sure one of your parents goes along with you |
| A．Don’t tell much about yourselves to strangers on the Internet. |
| B．Don’t make friends on the Internet. |
| C．You should believe what your net friends say. |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
