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主题词表： | 中文 | English | |---|---| | 古都 | ancient capital | | 兵马俑 | Terracotta Warriors | | 丝绸之路 | Silk Road | | 历史遗迹 | historical site | | 文化交流 | cultural exchange | 核心句型： - `The city was once...`：这座城市曾经是……。 - `It played an important role in...`：它在……中发挥了重要作用。 易错点： - `Xi'an` 中间有撇号，避免写成 `Xian`。 - 兵马俑可用 `the Terracotta Warriors`。 - “中外”可译为 `between China and other countries`。

例句：Xi'an is a famous ancient capital of China and has many historical sites, including the Terracotta Warriors. As one of the starting points of the ancient Silk Road, Xi'an played an important role in cultural exchanges between China and other countries.

主题词表： | 中文 | English | |---|---| | 高铁 | high-speed rail | | 铁路网 | railway network | | 出行 | travel | | 准时 | punctual | | 便利 | convenience | 核心句型： - `It has greatly changed the way people...`：它极大改变了人们……的方式。 - `Compared with..., it is...`：与……相比，它……。 易错点： - `high-speed rail` 指系统，`high-speed train` 指列车。 - “大中城市”可译为 `large and medium-sized cities`。 - `compared with` 后接比较对象。

例句：China's high-speed rail has developed rapidly and has connected many large and medium-sized cities. Compared with ordinary trains, high-speed trains are fast and relatively punctual, greatly improving people's travel experience.

主题词表： | 中文 | English | |---|---| | 公共交通 | public transport | | 地铁 | subway / metro | | 公交车 | bus | | 通勤 | commute | | 交通拥堵 | traffic jam | 核心句型： - `A good public transport system can...`：良好的公共交通系统可以……。 - `More people are encouraged to...`：更多人被鼓励去……。 易错点： - `traffic jam` 可数，泛指拥堵可用复数 `traffic jams`。 - `reduce` 后直接接宾语。 - `more and more important` 是四级安全表达。

例句：As cities grow larger, public transport becomes more and more important. Subways and buses can reduce traffic jams, lower travel costs and make urban life more convenient.

主题词表： | 中文 | English | |---|---| | 移动支付 | mobile payment | | 二维码 | QR code | | 智能手机 | smartphone | | 现金 | cash | | 便利 | convenience | 核心句型： - `People can pay for... by...`：人们可以通过……支付……。 - `This has made daily life...`：这使日常生活……。 易错点： - `scan a QR code` 是“扫二维码”。 - `pay for goods` 与 `pay in a shop` 搭配不同。 - `convenient` 是形容词，名词是 `convenience`。

例句：Mobile payment is very popular in China. People only need to scan a QR code with a smartphone to pay in shops, restaurants and public transport. This has made daily life more convenient.

主题词表： | 中文 | English | |---|---| | 电子商务 | e-commerce | | 网购 | online shopping | | 快递 | express delivery | | 消费者 | consumer | | 平台 | platform | 核心句型： - `Thanks to..., people can...`：多亏……，人们可以……。 - `It has created new opportunities for...`：它为……创造了新机会。 易错点： - `the way people shop` 中 `shop` 可作动词。 - 快递服务可译为 `express delivery services`。 - “各地商品”意译为 `goods from different places`。

例句：E-commerce has changed the way Chinese people shop. Thanks to online shopping platforms and fast express delivery services, consumers can easily buy goods from different places, and small businesses have gained more sales opportunities.

主题词表： | 中文 | English | |---|---| | 人工智能 | artificial intelligence / AI | | 智能助手 | smart assistant | | 推荐系统 | recommendation system | | 效率 | efficiency | | 隐私 | privacy | 核心句型： - `AI is being used in...`：人工智能正被用于……。 - `While it brings convenience, it also raises concerns about...`：它带来便利的同时，也引发对……的担忧。 易错点： - `AI` 首次出现前可先写全称。 - `privacy` 不可数，通常不加 `a`。 - `such as in...` 可列举应用场景。

例句：Artificial intelligence is being used more and more in daily life, such as in smart assistants, online translation and recommendation systems. It improves efficiency, but it also reminds people to pay attention to data security and personal privacy.