Mobile phones are useful, but you should use them wisely. To protect your eyes, every 20 minutes, you should rest your ____1____ and look at something far away. What’s more, you could make your screen brighter or ____2____ to match your environment. Of course, you shouldn’t look at your phone just before you go to bed, ____3____ you certainly shouldn’t look at it when you cross the ____4____ for traffic safety! In fact, you should avoid using your phone too often. You could listen to music instead of watching videos. You could also ____5____ your friends face to face instead of sending them messages.

1.1.

A eyes

B ears

C hands

D

解析：选A。名词词义辨析。前文To protect your eyes（为了保护你的眼睛）点明本段核心目的是保护眼睛。选项：A. eyes 眼睛；B. ears 耳朵；C. hands 手句意：每 20 分钟，你应该让你的眼睛休息，看向远处的东西。逻辑：保护眼睛→让眼睛休息，前后内容呼应，故选 A。

2.2.

A wider

B darker

C bigger

D

解析：选B。形容词比较级词义辨析。brighter or ____，or 表示选择关系，连接两种屏幕状态。brighter 是 bright 的比较级，意为 “更亮的”。根据生活常识，屏幕可以调亮，也可以调暗来适应周围环境。选项：A. wider 更宽的；B. darker 更暗的；C. bigger 更大的wider、bigger 用来描述物体尺寸大小，不能形容屏幕亮度。darker 是 dark 比较级 “更暗的”，和 brighter（更亮）对应。句意：你可以把屏幕调亮或者调暗来适应你的环境。故选 B。

3.3.

A so

B and

C but

D

解析：选B。并列连词辨析。前半句：you shouldn’t look at your phone just before you go to bed（睡前不应该看手机）；后半句：you certainly shouldn’t look at it when you cross the street（过马路绝对不能看手机）。这是两条独立、同向的劝告，属于顺承并列关系。选项：A. so 所以，表因果结果；B. and 和、并且，表并列顺承；C. but 但是，表转折。本句没有因果、转折含义，是连续给出两条建议，用 and 连接两个并列的否定句，故选 B。

4.4.

A room

B street

C river

D

解析：选B。名词词义辨析。后文线索for traffic safety为了交通安全。和交通安全相关的场景就是过马路。选项：A. room 房间；B. street 街道；C. river 河流固定搭配cross the street过马路；cross the room 穿过房间；cross the river 过河。只有过马路和交通安全有关，句意：当你过马路的时候千万不要看手机，故选 B。

5.5.

A talk to

B call up

C write to

D

解析：选A。动词短语辨析。关键提示词face to face面对面。选项：A. talk to 与…… 交谈；B. call up 打电话；C. write to 写信给……B 选项打电话、C 选项写信都是线上交流，和 facetoface（面对面）矛盾。talk to your friends face to face和朋友面对面交谈，和后文sending them messages发消息形成对比，故选 A。