Eyes play an important role in daily life. However, some habits may be bad for your eyes. Healthy vision (视力) starts with you! ____41____

◆ Do exercise.

Kids who exercise often have a healthier body weight than kids who don’t. If you are too heavy, it is easy to get into some health problems such as diabetes. These problems might lead to poor vision. ____42____

◆ Eat right.

Keep your eyes healthy by eating right food. Try to have different kinds of fruits and green vegetables. Fish has been shown to help your eyes, too.

◆____43____

Don’t spend too much time on a computer, mobile phone, or TV screen. Looking at any one thing for too long can tire your eyes. Give your eyes a rest with the 20-20-20 rule: Every 20 minutes, look about 20 feet away for 20 seconds.

◆ Wear the right protection.

____44____ When you do sports on the playground or use chemicals (化学品) in a science lab, protective glasses are helpful to prevent your eyes from getting hurt. When walking in the sun, you’d better wear sunglasses to protect your eyes.

◆ Speak up if your vision changes.

Do you have trouble seeing anything at school? Do you squint (眯着眼看) a lot? ____45____ If you notice any changes in your vision, tell your parents or teachers. They can help you find ways to keep your eyes healthy.

A. Are your eyes black?

B. Give your eyes a rest.

C. Is your vision as clear as before?

D. Here are some ways to help take care of your eyes.

E. So do exercise to have a healthy weight from now on.

F. Be sure to wash your hands before touching your eyes.

G. You should choose the right protection for eyes in different situations.

1.41.

A

B

C

D

解析：选D。主旨过渡句。前文引出眼睛重要、坏习惯伤眼，下文分点列举护眼办法。D“下面是一些保护眼睛的方法” 总起下文，起到承上启下作用。

2.42.

A

B

C

D

解析：选E。细节逻辑句。本段讲运动，前文说体重过重会引发影响视力的疾病。E“所以从现在开始锻炼，保持健康体重” 承接上文因果逻辑。

3.43.

A

B

C

D

解析：选B。小标题。该段核心是不要长时间看屏幕，用 202020 法则让眼睛休息。B “让眼睛得到休息” 概括整段主旨，适合做小标题。

4.44.

A

B

C

D

解析：选G。段首主旨句。本段小标题为佩戴合适防护装备，后文列举运动、做实验、晒太阳不同场景的护眼工具。G “在不同场景下要选择合适的眼部防护用品” 统领全段。

5.45.

A

B

C

D

解析：选C。问句衔接句。前后都是问句，围绕视力异常提问。C“你的视力还和以前一样清晰吗？”承接看东西费劲、眯眼的视力异常现象，与上下文句式、话题一致；A 话题无关排除。