托福每日一词：impact
对于托福词汇部分，大家不仅仅要做到量的积累，同时还要对一些重点词汇，进行重点复习，了解词汇的常考释义，知道词汇的用法并且也要进行拓展练习。这样才能够全方位分的攻克一个重点单词。因此下面小编为大家整理了详细的内容，供大家参考。
来源：新东方 《TOEFL终极4300》
impact
常考释义
1.n.影响
a powerful or major influence or effect
例：They say they expect the meeting to have a marked impact on the future of the country.
他们说期望这次会议对国家的未来产生显著的影响
2. v. 产生影响
to have a strong and often bad effect on (something or someone)
例：Such schemes mean little unless they impact people.
除非能对人们造成影响，否则这样的计划意义不大。
3. n. 撞击
the act or force of one thing hitting another
例: The plane is destroyed, a complete wreck: the pilot must have died on impact.
飞机被毁，完全成了一堆残骸：飞行员一定在撞击中丧生了。
音频中例句
1. The asteroid was disintegrated by the impact.
小行星被撞击后土崩瓦解。
2. Our human activities may impact on the climate event.
人类活动会影响气候变化。
练习
练习：判断下列句子中impact的意思。
1. One of the most difficult aspects of deciding whether current climatic events reveal evidence of the impact of human activities is that it is hard to get a measure of what constitutes the natural variability of the climate.
2. This increased demand, impacted the societal attitudes towards eye glasses.
3. An asteroid of this size would be expected to leave an immense crater, even if the asteroid itself was disintegrated by the impact.
(注： 练习答案下拉至底部可见)
拓展
1. 搭配： impact on v. 对…产生影响
have an impact on… 对…产生影响
2. 同义词：affect v. 对…产生影响
have an effect upon…对…产生影响
练习答案
以上就是为大家整理的“托福每日一词：impact”，更多精彩内容请关注托福频道!
