Recently, temperatures have dropped dramatically across the country, with cold winds sweeping through both northern and southern regions. With this sudden drop in temperature, it comes as no surprise that more and more people are catching colds. ___1___ To help you stay warm and healthy during the cold season, here are four practical strategies to prevent colds effectively.

Wearing appropriate clothing is crucial to maintaining body temperature. ___2___ This way, you can add or remove clothes according to indoor and outdoor temperature changes, avoiding sweating and subsequent chills. Don’t forget to protect vulnerable parts like your neck, hands and ears, as they lose heat quickly.

A balanced diet plays a fundamental role in strengthening your immune system. Incorporate foods rich in vitamin C, such as oranges and strawberries, into your meals. Additionally, drink sufficient water. Equally important is what you should keep away from. ___3___

Germs spread primarily through hand contact, so frequent handwashing is essential. ___4___ Try to avoid touching your eyes, nose and mouth with unwashed hands, as these are key entry points for cold viruses. Keeping rooms well-ventilated (通风良好) also reduces virus accumulation.

___5___ Aim for 7-8 hours of sleep nightly, as insufficient rest can lower your resistance. While regular exercise is beneficial, avoid strenuous (繁重的) workouts when feeling tired, as this may make you more susceptible to illness. Balancing rest and activity helps maintain a strong physique.

A. Always use soap and running water when washing your hands.

B. Any movement is better than staying still for long stretches of time.

C. Quality sleep is vital for your body to recover and repair.

D. Instead of a single thick coat, opt for multiple layers.

E. Avoid excessive intake of junk food, as it may weaken your body’s defense. 

F. Getting outside is also a good way to boost our levels of vitamin D.

G. Sneezing, coughing, and feeling generally unwell have become common. 

1.1.

A

B

C

D

解析：选G。G 根据前文“more and more people are catching colds”及后文“To help you... prevent colds effectively”可知，此处需填入体现感冒具体症状的句子。选项G“Sneezing, coughing... have become common”既承接了上文“感冒人数增多”的事实，又通过描述具体症状，自然引出了下文关于预防的建议。故选 G。

2.2.

A

B

C

D

解析：选D。D 根据前文“Wearing appropriate clothing...”及后文“This way, you can add or remove clothes...”可知，此处需填入具体的、可灵活增减的穿衣方法。选项D“Instead of a single thick coat, opt for multiple layers”提出了“分层穿衣”的策略，后文的“This way”和“增减衣服”正是对这种策略的直接解释。故选 D。

3.3.

A

B

C

D

解析：选E。E 前文重点论述了均衡饮食和应摄入的食物，并以“Equally important is what you should keep away from”转折。选项E“Avoid excessive intake of junk food...”完美回答了“应避免什么”的问题，与前文构成完整的饮食建议。故选 E。

4.4.

A

B

C

D

解析：选A。A 前文指出“勤洗手至关重要”，此处需填入具体的洗手规范。选项A“Always use soap and running water...”提供了正确洗手的方式，与后文“避免用未洗过的手触摸...”共同构成了完整的卫生建议链条。故选 A。

5.5.

A

B

C

D

解析：选C。C 后文均在论述睡眠时长和不足的后果，因此此处需填入一个点明“睡眠重要性”的主题句。选项C“Quality sleep is vital...”精准地概括了本段主旨，后文内容均为支撑此主旨的细节。故选 C。