四、阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。
allow popular be if instructor for cheap suggestion give importantly
Physical exercise is good for our body and mind. Today, working out through online videos is becoming very 1. .
As more and more friends chose to work out by following online videos, I decided to 2. it a go too. When I told my plan to my elder sister, a fitness 3. , she reminded me that workout videos could be helpful but might still bring some problems.
"Without 4. with someone in person, you will be less willing(愿意的)to work out. Working out at the gym 5. you to get real-time advice and to push yourself harder," my sister said to me. " Well, 6. you really want to have a try, choose proper programs or videos first. That's very necessary. And then ask your friends 7. advice. Their experiences can give you a clear idea about what you expect. Most 8. , don't be addicted(沉迷的)to it. You should try different ways to work out to keep healthy."
In the end, I followed my sister's 9. and tried an online workout program. I found it very practical and helpful. Compared with going to the gym, it is a much 10. and time-saving choice. But it can be difficult to stick to it when I'm too tired or busy. Anyhow, I will try my best to keep doing it regularly.

1. popular 2. give 3. instructor 4. being 5. allows 6. if 7. for 8. importantly 9. suggestions 10. cheaper

【分析】
做这类选词填空题，首先第一步要通读全文，理清文章主旨：本文围绕线上健身的流行趋势，讲述了作者作为健身新手听从做教练的姐姐的建议尝试线上锻炼的经历，先整体把握语境逻辑。第二步逐个分析空格：先根据空格前后的提示，判断空格所需的词性、时态、固定搭配要求，再从给出的备选词中筛选匹配的词汇，同时按照语法规则进行正确的词形变换，注意每词只能使用一次。最后将所有填好的答案代入全文通读，验证语义通顺、语法正确即可。
【解析】
1. 空格前为系动词become和副词very，此处需要填入形容词作表语，句意为“如今跟着线上视频锻炼正变得非常流行”，备选词popular意为“受欢迎的、流行的”，符合语境，故填popular。
2. 此处为固定搭配decide to do sth.（决定做某事），需要填入动词原形，give sth. a go是固定短语，意为“尝试做某事”，符合语境，故填give。
3. 空格前有不定冠词a和名词fitness修饰，需要填入可数名词单数，句意为“我的姐姐是一名健身教练”，备选词instructor意为“教练、指导者”，fitness instructor即健身教练，符合语境，故填instructor。
4. 空格前为介词without，介词后需要接动名词形式，句意为“没有亲自和他人面对面获得指导，你锻炼的意愿会更低”，be的动名词形式为being，故填being。
5. 本句主语为动名词短语Working out at the gym，谓语动词需要用第三人称单数形式，句意为“在健身房锻炼允许你获得实时建议，推动自己更努力锻炼”，allow的第三人称单数形式为allows，符合语境，故填allows。
6. 此处引导条件状语从句，句意为“如果你真的想试一试，先选择合适的项目或者视频”，备选词if意为“如果”，引导条件状语从句，符合逻辑，故填if。
7. 此处为固定搭配ask sb. for advice，意为“向某人寻求建议”，符合语境，故填介词for。
8. 此处为固定短语most importantly，意为“最重要的是”，用来修饰整个句子起到强调作用，符合语境要求，故填importantly。
9. 句意为“最后，我听从了姐姐的建议，尝试了一个线上锻炼项目”，前文姐姐给出了多条建议，因此可数名词suggestion需要变为复数形式suggestions，故填suggestions。
10. 空格前有程度副词much修饰，后文并列形容词time-saving，此处是将线上健身和去健身房做对比，需要填入形容词比较级，cheap的比较级为cheaper，意为“更便宜的”，符合语境，故填cheaper。
【答案】
1. popular 2. give 3. instructor 4. being 5. allows 6. if 7. for 8. importantly 9. suggestions 10. cheaper
【知识点】
选词填空，固定搭配，词形转换
【点评】
本题结合当下热门的居家线上健身的生活场景命题，既考察学生对备选词汇词义的掌握，也重点考察了介词后接动名词、动名词作主语的谓语形式、名词复数、形容词比较级等语法点，以及大量常见的固定短语搭配。解题时切忌边看边填，一定要先通读全文把握整体语境，避免出现前后逻辑矛盾的问题。
【难度系数】
0.6