雅思长句型

今日分享 Oppland's mountains present daunting terrain and in periods of extreme cold, glaciers could block the higher mountain passes and make travel in the upper reaches of the mountains extremely difficult. ——剑雅16

结构分析

主句：Oppland's mountains present daunting terrain.

并列句：and in periods of extreme cold, glaciers could block the higher mountain passes and make travel in the upper reaches of the mountains extremely difficult.

词汇补充：

daunting /ˈdɔːntɪŋ/ adj. seeming difficult to deal with in prospect； 令人胆怯的。

terrain /təˈreɪn/ n. a stretch of land, especially with regard to its physical features. 地形；地势；地带。

extreme /ɪkˈstriːm/ adj. reaching a high or the highest degree； very great. 极度的；极端的；尽头的。

Over a nine-year period, a team of archaeologists, which included Lars Pil0 of Opp land County Council, Norway, and James Barrett of the McDonald Institute for Archaeological Research, surveyed patches of ice in Opp land, an area of south-central Norway that is home to some of the country's highest mountains. ——剑雅16

结构分析

主句：a team surveyed patches of ice in Opp land.

定语从句：which included Lars Pil0 of Opp land County Council, Norway, and James Barrett of the McDonald Institute for Archaeological Research.

同位语：an area of south-central Norway that is home to some of the country's highest mountains.

词汇补充：

archaeologist /ˌɑːkiˈɒlədʒɪst/ n. a person who studies archaeology. 考古学家。

However, the company had started using a[n] ... algorithm that defined when account managers should contact certain customers about which kinds of campaigns and what to offer them. ——剑16 Test 1 Passage 3

结构分析

主句：the company had started using an algorithm.

定语从句：that defined when account managers should contact certain customers about which kinds of campaigns and what to offer them.

重点词汇：

account managers: n. 客户经理

contact: v. 联系

define: v. 定义

campaigns: n. 战役；活动

这些长句包含了丰富的词汇和复杂的句式结构，对于雅思考生来说，掌握这些句式有助于提高阅读理解和写作水平。建议在备考过程中，多阅读和分析这类长句，理解其结构和含义，并尝试在写作中运用。