C
A smile shows that a person is happy. For example, a person may smile when he or she is
1. p with some progress in studies. Or a person may smile if a friend tells a funny
joke. There are other good 2. r to smile often.
First, it is 3. e to smile than to show unhappiness. In fact, it only takes 17
muscles to smile. On the other hand, it takes 43 muscles to show unhappiness. So give
the muscles in your 4. f a rest and smile!
Second, smiles are nice. People may try to 5. l nice by exercising or wearing nice
clothes. However, people often say a smile is the best thing a person can wear. That is because
it is easy to be 6. a someone who is smiling and happy. Almost no one wants to stay
with someone who is always unhappy.
Third, smiles have power. Both smiling and laughing can easily and quickly
7. s from one person to another. If one person smiles, people around him or her want
to smile, too. Similarly, when a person laughs, people tend to laugh with him or her.
If a person is 8. s, the best thing to do is to share a smile or a laugh. It is the easiest
way to cheer someone up.
9. F, smiling and laughing are very good for the body. Even though you are sad,
try smiling. You'll find that it will be difficult to 10. s sad for very long!

1. pleased 2. reasons 3. easier 4. face 5. look 6. around 7. spread
8. sad 9. Finally 10. stay

【分析】
这是一篇主题为介绍微笑的诸多益处的短文首字母填空题，解题思路如下：第一步先通读全文，理清文章整体围绕“微笑的好处”展开的核心主旨，明确行文是按分点罗列优势的逻辑推进；第二步逐句分析每个空格的句子语义、空格所需的词性，结合前后文的搭配提示、已给出的首字母线索，同时兼顾语法规则（比如比较级标志、名词单复数、固定搭配要求）推导对应单词；第三步把初步得到的答案代入全文通读，验证语义通顺、逻辑连贯，排查不符合语境的错误答案。
【解析】
1. 此处表达“当一个人在学习上取得一些进步时会微笑”，结合固定搭配be pleased with（对……感到满意）、首字母p提示，填pleased。
2. 前文提到微笑的其中一个动因是开心，后文开始罗列多个应该常微笑的原因，other后接可数名词复数，结合首字母r提示，填reasons。
3. 空格后有than表示比较级，后文提到微笑仅需动用17块肌肉，比展露负面情绪更省力，结合首字母e提示，填easier。
4. 前文提到微笑用到的肌肉，对应的是脸部的肌肉，结合首字母f提示，填face。
5. 句意为“人们可能通过锻炼或者穿好看的衣服努力让自己看起来好看”，try to后接动词原形，look nice表示“看起来好看”，结合首字母l提示，填look。
6. 后文提到几乎没人愿意一直和总是不开心的人待在一起，对应此处表达“待在面带微笑、情绪愉悦的人身边是很舒服的事”，be around sb表示“在某人身边”，结合首字母a提示，填around。
7. 后文提到一个人微笑，周围的人也会跟着想笑，说明微笑和大笑会在人与人之间传递，spread from...to...表示“从……传播到……”，结合首字母s提示，填spread。
8. 后文提到这是让别人振作起来的最简单方法，对应此处表达“如果一个人难过，最好的方式就是给他传递微笑或者笑声”，结合首字母s提示，填sad。
9. 前文已经依次用First、Second、Third罗列了三点好处，此处是最后一点，对应逻辑衔接词“最后”，结合首字母F提示，填Finally。
10. 句意为“即便你很悲伤，试着微笑，你会发现很难长时间保持难过的状态”，stay+形容词表示“保持某种状态”，结合首字母s提示，填stay。
【答案】
1. pleased 2. reasons 3. easier 4. face 5. look 6. around 7. spread 8. sad 9. Finally 10. stay
【知识点】
短文首字母填空，固定搭配，形容词比较级
【点评】
本题属于生活化主题的首字母填空，考点兼顾上下文逻辑推导、常用固定短语、基础语法规则，没有过于生僻的词汇，学生解题时要注意先把握全文主旨再逐空推导，避免脱离语境硬凑首字母单词，做完后要代入全文通读验证通顺性，注意名词复数、比较级这类细节语法要求。
【难度系数】
0.6

D
As the weather gets warmer, it's the perfect time to plan a day at the beach. There, you
can enjoy 1. a like swimming, surfing, and building castles in the sand. However,
it's important to keep beach safety in mind.
Now, there is a new AI water 2. m system that can help stop
drowning. Sight-bit was developed by a company which can be used to help save
3. l. This programme was 4. c after its creator saw someone drowning in
the sea. He believed this could have been stopped and started working on this programme.
The Sight-bit system works by using cameras at the beach to read the water conditions
5. c. The AI is able to watch the video and find dangers. For example, it can
6. t when the waves are dangerous or whether someone is in trouble or not in
the water.
The new system can also help beach safety officers know where and when someone
7. n help. Then they can receive warnings on devices like smartphones and
smartwatches. They can act quickly to 8. s accidents in this way.
Now, this technology is used in some places around the world. The creator's goal is for
every beach to be a safe place where families can enjoy their time without 9. w about
dangers of drowning. This technology shows how science and caring for others can make a big
10. d in keeping us safe while we are having fun.

1. activities 2. management 3. lives 4. created 5. carefully 6. tell
7. needs 8. stop 9. worrying 10. difference

【分析】
这是一篇科普主题的首字母填空题，解题时首先通读全文，明确文章围绕海滩安全AI防溺水系统展开核心话题。接下来逐个分析空格：第一步先结合空格前后的内容判断所需单词的词性，再结合给出的首字母提示，联系上下文语境、常用固定搭配推导词义，最后还要根据语法规则调整单词的正确形式，比如名词单复数、动词的语态时态、介词后的非谓语形式等，确保填入的单词语义通顺、语法正确。
【解析】
1. 空格后列举了游泳、冲浪、堆沙堡等多项海滩游玩项目，属于不同的活动，首字母为a，activity是可数名词，多个活动需变为复数形式，故填activities。
2. 此处描述的是可辅助防溺水的AI水上相关系统，常用搭配water management system表示水上管理系统，首字母为m，故填management。
3. 该安全系统的作用是挽救生命，life表示“生命”时为可数名词，此处表示泛指多个生命，用复数形式，首字母为l，故填lives。
4. 本句为被动语态，意为该程序是在开发者目睹有人在海里溺水后被创造出来的，空前有was，需填入动词过去分词，首字母为c，故填created。
5. 空格修饰动词read（读取），需要使用副词，此处指系统通过摄像头仔细读取海滩的水况，首字母为c，故填carefully。
6. 情态动词can后接动词原形，此处指AI可以判断海浪何时危险、水中是否有人遇险，tell在这里有“辨别、判断”的含义，首字母为t，故填tell。
7. 句子主语someone为不定代词，作主语时谓语动词用单数，一般现在时语境下表示“有人需要帮助”，首字母为n，故填needs。
8. 空前为不定式符号to，后面接动词原形，此处指安保人员可以快速行动以此阻止事故发生，首字母为s，故填stop。
9. 固定搭配worry about表示“担心”，空前的without是介词，介词后接动名词形式，首字母为w，故填worrying。
10. 固定搭配make a big difference表示“产生重大影响、起到很大作用”，符合语境，首字母为d，故填difference。
【答案】
1. activities 2. management 3. lives 4. created 5. carefully 6. tell 7. needs 8. stop 9. worrying 10. difference
【知识点】
首字母填空、固定搭配、词形转换
【点评】
本题属于贴近生活的科普类首字母填空题，既考查学生对全文语境的梳理理解能力，也对初中阶段常见的固定搭配、词性变换规则进行了考察，其中tell表示“辨别判断”的熟词生义考点有一定区分度，整体能够有效锻炼学生结合上下文推导单词的解题能力。
【难度系数】
0.6