New words：

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必记高频搭配

New words：

throat/θrəʊt/ n.喉咙；咽喉；嗓音

必记高频搭配

have a sore throat 喉咙痛
She caught a cold and has a sore throat now.

clear one’s throat 清嗓子
The teacher cleared his throat before starting the class.

a loud throat 大嗓门
The coach has a loud throat that can be heard across the playground.

sore[sɔr] adj.（发炎）疼痛的；酸痛的；气恼；愤慨

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.