---
url: https://gaojian.site/ielts-100/71-制成品主导贸易.md
description: 雅思100句第71课：朗读切分、难词重标、同义替换与语法结构分析
---

# 71｜制成品主导贸易

IELTS 100 · 第 71 / 100 课

## 今日原句

> It is finished manufactured products that **dominate** the **flow of trade**, and, thanks to technological advances such as lightweight components, manufactured goods themselves have tended to become lighter and less **bulky**.

::: details 本课抓手 · 需要时看结构与词块
**结构层次：** 强调句／原因插入／并列变化

**重点词块：** **dominate**、**flow of trade**、**bulky**

**输出目标：** 不看原句，能沿用本课结构表达一个与你有关的观点。
:::

## 准确理解

贸易流通中占主导地位的是制成品。得益于轻量化零部件等技术进步，制成品本身也趋向于更轻、体积更小。

## 难词与同义替换

| 原表达 | 本句含义 | 可替换表达 |
| --- | --- | --- |
| **dominate** | 占主导 | lead |
| **flow of trade** | 贸易流动 | trade flows |
| **bulky** | 笨重的 | cumbersome |

替换词不一定能在所有语境中机械互换；这里的作用是扩大表达选择，同时保留本句语义。

## 语法骨架

先读懂 · 再分层

**主干与层次：** 主导贸易的是制成品；技术进步又让这些商品逐渐变轻、体积缩小。

* **强调句：** `It is finished manufactured products that dominate the flow of trade` 去掉 It is...that 后，主干是 finished manufactured products dominate the flow of trade；强调的是主语。
* **原因插入：** `thanks to technological advances such as lightweight components` 在第二分句里解释商品变轻的技术原因；such as 举例。
* **并列变化：** `manufactured goods themselves have tended to become lighter and less bulky` and 连接另一完整判断；have tended to 表长期趋势而非单次事件。

先找主语与核心谓语，再把条件、原因或修饰接回去。读到从句时，停一下：它在解释哪个词，还是在限定整个判断？

## 句型语法精讲

### 为什么这样说

`It is` ... `that` 强调“哪类商品”而非贸易是否存在；第二分句 `thanks to` 给原因，`have tended to` 写长期趋势。两段谈的都是制成品，但任务不同。

### 什么场景可以用

纠正“谁/什么起主导作用”的判断，用 `It is` + 被强调主语 + `that` + 谓语。先写普通句 `A dominates` ...，再加强调；无需纠正焦点时，普通句更简洁。

保留关系 · 替换内容

> `It is 〔被强调对象〕 that 〔主导贸易〕, and thanks to 〔原因〕, 〔商品〕 have tended to 〔变化〕.`

### 从仿写看迁移

取自下方「语法句型仿写」第 1 句，可在那里听原声、跟读。

> It is online orders that now dominate our sales, and thanks to the new checkout, they have tended to arrive more steadily.

仿写第 1 句强调目前销售以线上订单为主，再说新结账流程让订单到达更稳定。`orders that dominate` 用复数谓语，`have tended to` 表趋势，不是每次都完全稳定。

容易误解的地方

强调主语是复数时，`that` 后谓语也要匹配，`It is products that dominate`。`thanks to` 通常带有积极归因色彩，坏结果用 `because of` 更中性。

**接下来怎么学：** 先在「朗读切分」里带着理解跟读，再到「句型迁移」看结构怎样变化；自己的版本留到最后的「吃透与运用」。

> It is buses that carry most visitors to the park, and thanks to the new route, journeys have tended to be shorter.

这是下方仿写第 2 句。先指出它保留了骨架中的哪一层关系，再将人物、事物或情境换成自己的内容；不必把原句所有修饰都搬过来。

## 朗读切分

> It is finished manufactured products / that **dominate** the **flow of trade**, / and, / thanks to technological advances such as lightweight components, / manufactured goods themselves have tended to become lighter and less **bulky**.

先在 `/` 处短暂停顿。重读加粗内容词，虚词只轻轻带过；读到句尾再完整落音。

## 句型迁移

**可复用骨架：** `It is 〔被强调对象〕 that 〔主导贸易〕, and thanks to 〔原因〕, 〔商品〕 have tended to 〔变化〕.`

> It is reliable public transport that shapes commuting habits, and thanks to better connections, more residents have chosen to leave their cars at home.

试着保持这个骨架，把主题换成你的工作、学习或生活，再口头说一句。能替换内容，才算真正掌握结构。

## 吃透与运用

## 课后连听

今天想轻松听，就把本课原句与仿写串起来。这里用于听熟材料，不作为完成本课的必做任务；也可以去听力台自选更多课程。

***

[← 第 70 课](./70-龟类祖先追溯.md) · [第 72 课 →](./72-混凝土的环境代价.md)
