New words：

platform /ˈplætfɔːrm/ n. 平台；站台；（政党的）纲领，政纲，宣言；

词源拆解：

源自法语，由前缀 plat-（平坦的） + 词根 form（形状、形态）构成。
字面意思是 “平坦的形态”，核心语义围绕 “平坦的场地或载体” 展开。
衍生词围绕 “平台、站台、纲领” 三大核心语义展开。

必记高频搭配

1. 核心义①：（火车站、地铁站的）站台
   常用搭配：train platform；on the platform；wait on the platform

The train will stop at Platform 3 for ten minutes.

2. 核心义②：（科技、社交的）平台；载体
   常用搭配：online platform；social media platform；learning platform

This platform helps students learn English online for free.
Many young people share their daily life on social media platforms.

3. 核心义③：（演讲、发言的）讲台；舞台；（政党的）纲领
   常用搭配：speak from the platform；political platform

The teacher stood on the platform and began the class.
The party will publish its election platform next week.

New words：

atmosphere [ˈætməsˌfɪə(r)] n.大气；气氛；气压

词源拆解：

源自希腊语，由前缀 atmo-（空气） + 词根 sphere（球体）构成。
字面意思是 “包围地球的空气圈层”，后衍生出 “环境中的情绪氛围” 这一含义。

必记高频搭配

核心义①：（地球的）大气层；大气
常用搭配：the Earth’s atmosphere；pollute the atmosphere

The atmosphere protects us from the sun’s harmful rays.

核心义②：（场所的）气氛；氛围
常用搭配：a happy atmosphere；create a warm atmospher

There was a cheerful atmosphere at the birthday party.
Our teacher always tries to create a relaxed atmosphere in class.

New words：

intensity [ɪnˈtensɪti] n. 强度；强烈
intensify [ɪnˈtensɪˌfaɪ] v.（使）加剧；（使）增强

必记高频搭配

intensity of light/sound/colour 光╱声音╱色彩的强度
You should wear sunscreen to avoid the intensity of the midday sun.

The storm intensified rapidly and turned into a typhoon.
We need to intensify our efforts to finish the task on time.

New words：

intense [ɪnˈtens] adj. 强烈的；紧张的；热情的

必记高频搭配

核心义①：（感受、情绪）强烈的；剧烈的

intense pain/joy/anger/sadness；intense feeling

She felt intense pain in her leg after the fall.

核心义②：（氛围、活动）紧张的；激烈的

intense competition；intense discussion；intense atmosphere

Nowadays, young people face intense competition in the job market.

核心义③：（态度、关注）热情的；高度集中的

intense interest/focus

She has an intense interest in painting and practices every day.

atmosphere [ˈætməsˌfɪə(r)] n.大气；气氛；气压

关键使用提醒

1.形容词修饰功能：
intense 只能修饰名词，不能单独作谓语。
比如可以说 “intense heat”（酷热），但不能说 “The sun is intense hot”。
正确表达是 “The sun is intensely hot”。

2.语义区分技巧：
形容 “疼痛、喜悦” 等感受时，用 intense 强调 “程度剧烈”；形容 “气氛、竞争” 时，强调 “紧张激烈”；形容 “兴趣、专注” 时，强调 “高度集中”。

3.同源词联动记忆：
intense（形，强烈的）→ intensity（名，强度）→ intensively（副，强烈地），写作时灵活转换，比如：
形容词：The game was intense.
名词：The intensity of the game surprised us.
副词：They trained intensively for the game.

New words：

tense [tens]
n.时态
adj.神经紧张的；绷紧的

词源拆解：

源自拉丁语 “tensus”（意为 “拉伸的、绷紧的”），词根 “tend/tens” 表 “拉伸”
和之前学的tension（紧张；拉力）同源
核心语义围绕 “绷紧的状态”
衍生出形容词 “紧张的” 和名词 “时态” 两种用法。

必记高频搭配

1. 作形容词：紧张的；绷紧的（形容气氛、情绪或物体的状态）

tense atmosphere；tense muscles；tense situation；tense relationship

The atmosphere in the room was tense when the teacher came in.
He felt tense before the math exam because he didn’t study well.

2. 作名词：（动词的）时态（初中英语语法核心考点）

present tense；past tense；future tense

The present tense is the most basic tense in English.

atmosphere [ˈætməsˌfɪə(r)] n.大气；气氛；气压

同源词联动记忆：

tense（形容词，紧张的）→ tension（名词，紧张感），写作时可以灵活转换，比如：

形容词：The moment was tense.
名词：The tension of the moment made her hold her breath.