雅思写作中，简单的词汇更要注意准确的运用，需要确切的知道这些词的含义以及如何使用它。今天新东方在线雅思就带大家来看看20个雅思大小作文9分词汇以及用法。

notion

Some people reject the notion that seeing violence on television has a harmful effect on children.

preconceived notions

obtain

obtain information

obtain permission

obtain results

obtain advice

obtain money

observe

A number of changed can be observed…

The research project has been observing changes in the local population.

obstacle

obstacle to doing something

A lack of qualifications can be a major obstacle to finding a job.

to overcome all the obstacles in the path of…

to become/constitute an obstacle

A lack of qualifications constitutes an obstacle to finding a job.

Population growth constitutes an obstacle to economic development.

occupation

The college provides training in a wide range of occupations.

It's harder to lose weight when you have a sedentary occupation.

outcome

a positive/negative outcome

to influence/decide/determine the outcome

Better diet leads to improved health outcomes.

It is important to evaluate the learning outcomes of the course.

partial

It was only a partial solution to the problem.

a partial answer to the question

entire

The entire world/city/country

In the past people often spent their entire career working for the same company.

possess

Many people in Central London do not possess a car.

workers who possess the required skills for the task

predominantly

Senior management posts are predominantly held by men.

Female engineers work in a predominantly male environment.

principally

The measures were principally designed to tackle the problem of unemployment.

to be principally responsible for something

propose

Since the idea was first proposed, no action has been taken.

the proposed solution

provide

The rules should provide consumers with a high level of protection.

to provide something for someone

The government should be able to provide viable social services for poorer families.

to provide someone with something

The government should be able to provide poorer families with viable social services.

reject

to reject a notion/a plan/a request

to reject a job offer /a university application

The proposal was rejected as too costly.

repercussions

to have far-reaching repercussions

Any decrease in tourism could have serious repercussions for the local economy.

striking

The most striking feature of these results is that left-handed mothers are more likely to have left-handed children

striking contrast/similarities/features

substantial

The findings show a substantial difference between the opinions of men and women.

substantial sums of money

substantial changes/differences/improvements

substitute

substitute A for B

Computers cannot substitute for human interaction.

No book or course of study can substitute for experience.

substitute B with/by A

We cannot substitute human interactions with computers.

Human interactions cannot be substituted with computers.

Experience can be substituted with no book or course of study.

underlying

Unemployment may be an underlying cause of the rising crime rate.

We need to tackle the underlying causes of poverty.

be willing

Many consumers are willing to pay more for organic food.

Young people are willing to pay substantial sums of money to study at prestigious universities.