一、根据汉语意思写单词。
1. He wants to learn some (社交的)skills to make more friends.
2. Sam is honest and everyone (信任)him.
3. This is our sports field. We usually hold sports (公开活动)here.
4. The travel and hotel (费用)are high, so they give up the trip.
5. I called you last night, but nobody (回答).

1. social 2. trusts 3. events 4. costs 5. answered/replied

1. 此处需要形容词修饰名词skills，“社交的”对应的英文形容词是social。
2. “信任”的英文是trust，主语everyone是不定代词，句子为一般现在时，谓语动词要使用第三人称单数形式。
3. “公开活动”的英文是event，此处表示泛指的体育公开活动，要用复数形式，sports events是常用搭配。
4. “费用”的英文是cost，句中be动词为are，说明主语是复数，所以要使用cost的复数形式。
5. 句中时间状语last night表示过去的时间，句子时态为一般过去时，要使用“回答”对应的英文动词的过去式。

二、用括号中所给单词的适当形式填空。
6. We can know about what's happening around the world with the help of social (medium).
7. In foreign countries, we should mind our body language to avoid (understand).
8. Please write down these (sentence) on the blackboard.
9. I want to thank my best friend (sincere). She helps me a lot.
10. I went to see the (open) ceremony of the competition. It was amazing.

6. media
7. misunderstandings
8. sentences
9. sincerely
10. opening

【解析】
6. 此处表示泛指各类社交媒体，medium是可数名词，其复数特殊形式为media，social media是固定表达，意为“社交媒体”。
7. 结合语境“在国外我们要注意肢体语言以避免误解”，avoid后接名词作宾语，understand的名词否定形式misunderstanding表示“误解”，此处用复数misunderstandings表泛指多类误解。
8. 空前的these（这些）后接可数名词复数，sentence的复数形式为sentences。
9. 此处修饰动词thank，需要用副词作状语，sincere的副词形式为sincerely，意为“真诚地”。
10. opening ceremony是固定搭配，意为“开幕式”，此处用open的动名词形式opening作定语修饰ceremony。
【答案】
6. media
7. misunderstandings
8. sentences
9. sincerely
10. opening
【知识点】
名词复数变形
词类转换
固定短语搭配
【点评】
本题考查词形转换的基础用法，涵盖名词特殊复数、动词转名词/副词、固定搭配等常见考点，要求学生掌握单词的不同词性变形规则和语境适配用法。
【难度系数】
0.7

三、选词填空。

Good morning, everyone! Today, it's my honour to share my experience about how to 11. with others.
Last summer, I was invited to a local community activity. At first, I was a little 12. because I didn't know anyone there.13. later, I met a new friend, Tom, and things began to change. To break the ice, I asked, “What do you usually do 14. your free time?” This simple question caught 15. attention. He replied with great enthusiasm（热情）, telling me about his love for painting. He showed me some of his paintings and I asked him some questions about the 16. of them. Our conversation went very smoothly.
So when communicating with others, always be sincere and show 17. in them. Besides, you should 18. your words and expressions to avoid misunderstandings. If we keep these points in mind, we can communicate with others much 19. on any occasion.
Thank you for listening! That's all for my report.

11. communicate 12. nervous 13. But 14. in 15. his 16. details 17. interest 18. pay attention to 19. better

11. 此处为“疑问词+不定式”结构，to后接动词原形，固定搭配communicate with sb.意为“和某人交流”，符合全文分享交流经验的主题，故填communicate。
12. 系动词was后接形容词作表语，根据“不认识在场的任何人”的语境，可知一开始的状态是紧张的，故填nervous。
13. 前文提到一开始很紧张，后文说遇到新朋友后情况好转，前后是转折关系，句首单词首字母需大写，故填But。
14. 固定搭配in one's free time意为“在某人的空闲时间里”，故填介词in。
15. 固定搭配catch one's attention意为“吸引某人的注意”，此处指代前文的Tom，要将主格he变为形容词性物主代词his，修饰名词attention，故填his。
16. 句意为“我问了他一些关于这些画作细节的问题”，detail意为“细节”，此处用复数形式表示多方面的细节，符合语境，故填details。
17. 固定搭配show interest in sb.意为“对某人表现出兴趣”，符合交流时要真诚、对他人抱有兴趣的语境，故填interest。
18. 情态动词should后接动词原形，pay attention to意为“注意”，符合“留意你的言辞和表情来避免误解”的语义，故填pay attention to。
19. 副词much可用来修饰比较级，表示程度加深，此处表示在任何场合都能和他人交流得好得多，要将形容词good变为比较级better，故填better。