考托福，必备的短语都会了吗？看这里！小编已经整理好了纯纯的干货，快快背起来吧！

　　1. a while back 一段时间，不久之前

　　e.g.

　　She stopped working with cops a

　　while back.

　　她停止和警察合作已经有一段时间了。

　　2. a white elephant 累赘的东西，无价值的东西

　　e.g.

　　The car is a white elephant for me.

　　这辆小汽车对我来说是无用之物。

　　3. be attached to 喜爱的，依恋的

　　e.g.

　　The children are very attached to their grandparents.

　　孩子们非常依恋他们的祖父母。

　　4. behind the time (s) 落后于时代，过时

　　e.g.

　　Jone's store is behind the time.

　　琼斯的店已过时。

　　5. change for the worse 向坏的方面变化

　　e.g.

　　The doctor said the girl had taken a change for the worse and wasseriously ill.

　　医生说这女孩情况恶化，病已很严重。

　　6. chase the rainbows 做白日梦，想入非非

　　e.g.

　　Let’s stop chasing the rainbows.

　　我们不要想入非非了。

　　7. detrimental to (sth. / sb.) 有害于...

　　e.g.

　　Their decision could be detrimental to the future of the company.

　　他们的决定可能会对公司的未来产生不利影响。

　　8. dispense with sb. / sth. 省掉；使成为不必要

　　e.g.

　　They've had to dispense with a lot of luxuries since Mike lost his job.

　　由于迈克丢了工作，他们不得不与生活告别。

　　9. evolve into 演化成，逐步发展成

　　e.g.

　　The company has evolved over the years into a multi-million dollar organization.

　　该公司在数年内逐步发展成为一个拥有数百万美元资产的大企业。

　　10. expose to 暴露；使遭受

　　e.g.

　　It is feared that people living near the power station may have been exposed to radiation.

　　人们担心居住在发电站附近的居民可能已受到辐射。

　　这些词组你都学会了吗？更多托福备考秘籍及新鲜资讯，敬请关注新航道托福考试频道。