从词汇掌握要求难度来看，雅思写作对词汇的掌握难度应该是最大的，虽然只要求你理解意思、会拼写，但需要你积累的单词都比较书面化，在日常生活不太常见。
相较于写出复杂句式，高级的单词更容易掌握和运用，一旦记住也不容易出错。所以下面就给大家分享20个雅思8分以上写作会用到的单词，不偏不怪但很高级！大家赶紧来记一记吧！
一、20个学术词汇
1. Abstract (adj)英文释义：based on general ideas or principles rather than specific examples or real events.中文释义：抽象的
例句: Human beings are the only creatures capable of abstract thought.
2. Aggregate (v)英文释义：(Usually Passive) to put together different items, amount, etc. into a single group or total.中文释义：总计
例句: The scores were aggregated with the first round totals to decide the winner.
3. Cooperative (adj)英文释义：willing to cooperate.中文释义：团结合作的，齐心协力的，配合的
例句: He was doing his best to be cooperative.
4. Discrimination (n)英文释义：The practice of treating somebody or a particular group in the society less fairly than others.中文释义：歧视
例句：Government figures suggest that ethnic minorities face discrimination looking for jobs.
5. Diversity (n)英文释义：a range of different people, things, or ideas.中文释义：差异性，多样性
例句: Cultural diversity is a central feature of modern British society.
6. Exceed (v)英文释义：to be more than a particular number or amount.中文释义：超过
例句: Working hours must not exceed 42 hours a week.
7.Immigrant(n)英文释义：someone who enters another country to live there permanently.中文释义：移民
例句: Large numbers of illegal immigrants have found their way into the country.
8. Inevitable (adj)英文释义：Certain to happen and impossible to avoid.中文释义：不可避免的
例句: A rise in the interest rates seems inevitable.
9. Phenomenon(n)英文释义：something that happens or exists in society, science, or nature, especially something that is studied because it is difficult to understand.中文释义：现象
例句: The idea that we may be able to live forever is not a new phenomenon.
10. Paradox (n)英文释义： a situation that seems strange because it involves two ideas or qualities that are very different.中文释义：悖论，矛盾的人或事
例句: It’s a paradox that in such a rich country there can be so much poverty.
11.Intrusion (n)英文释义：When someone does something or something happens, that affects you private life or activities in an unwanted way.中文释义：扰乱，侵犯，入侵例句：This is a governmental intrusion on the freedom of the press.
12.Involuntary (adj)英文释义：Happening without the person concerned wanting it to.中文释义：无意识的，非自愿的，非本意的
例句：The distinction between voluntary and involuntary unemployment is often blurred.
13.Itinerary (n)英文释义：a plan of a journey, including the route and the places that you visit.中文释义：行程，旅行日程
例句：Visits to four different countries are included in your itinerary.
14.Lucid (adj)英文释义：clearly expressed; easy to understand.中文释义：表达清楚的；简单易懂的
例句：There is only one lucid explanation for this problem.
15.Lucrative (adj)英文释义：producing a large amount of money; making a large profit.中文释义：利润大的
例句：Many of the engineers left the service for more lucrative jobs abroad.
16.Ludicrous (adj)英文释义：Unreasonable; that you cannot take seriously.中文释义：不合理的，不能当真的
例句：It was ludicrous to think that the plan might succeed.
17.Jurisdiction (n)英文释义：the authority that an official organization has to make legal decisions about somebody/something.中文释义：司法权，审判权
例句：The British courts have universal jurisdiction over torture cases.
18.Lenient (adj)英文释义：not as strict as expected when punishing somebody or when making sure that rules are obeyed.中文释义：(惩罚或执法时)宽大的，宽容的，仁慈的例句：School examiners say that marking has become more lenient in recent years.
19.Loathe (v)英文释义：To dislike somebody/something very much.中文释义：极其讨厌，憎恶例句：She looked at him with loathing.
20.Obsess (v)英文释义：to completely fill your mind so that you cannot think of anything else, in a way that is not normal.中文释义：使痴迷; 使迷恋; 使着迷例句：Modern people are becoming obsessed with material wealth.