大家好，我是滬江小D！

還有一個(gè)多月的時(shí)間，大學(xué)英語(yǔ)四六級(jí)考試就要開(kāi)始了~不知道即將參加考試的各位童鞋復(fù)習(xí)的怎么樣了呢？小D根據(jù)滬友使用小D搜索四六級(jí)詞匯的搜索量排行和近兩年的四六級(jí)考題總結(jié)了一份不得不會(huì)的四六級(jí)詞匯排行榜，大家要背下來(lái)哦！

不得不會(huì)的四級(jí)高頻詞：下篇

不得不會(huì)的六級(jí)高頻詞：上篇、下篇

1.?Challenge

n. 挑戰(zhàn)；懷疑

參考例句：This examination is a real challenge.（這次考試是一次真正的挑戰(zhàn)。）

? ? ? ? ? ? ? Their legal challenge was unsuccessful.（他們的法律質(zhì)疑未獲成功。 ）

v. 向…挑戰(zhàn)；反對(duì)；刺激，激發(fā)

參考例句：I challenged him in the contest.（我在競(jìng)賽中向他提起挑戰(zhàn)。）

? ? ? ? ? ? ? The new position challenge him to study still harder during his spare time.（那個(gè)新職位激發(fā)他在業(yè)余時(shí)間更加努力學(xué)習(xí)。）?

四級(jí)真題：（2011年12月——深度閱讀）

Finding the resources to meet this demand in a stable sustainable way is the cornerstone (基石) of our nation's energy security, and will be one of the major _49_ of the 21st century.

答案：challenges

2.?Contain

v. 包含；可容納；控制…；可被…除盡

參考例句：Corn and potatoes contain much starch.（玉米和馬鈴薯含有大量淀粉。）

? ? ? ? ? ? ? Can't you contain your enthusiasm? （你不能控制一下你的熱情嗎？）

四級(jí)真題：（2011年6月——完形填空）

“The more we learn, the more amazed we are by the wealth of essential substances they _79_," Van Horn continues, "and how they interact with each other to keep us healthy."
79. A)retain B)contain C)attain D)maintain

答案：B) contain

3.?Gather

v. 聚集；收攏；采集

參考例句：The crowd is gathering.（人群正在聚集。）

? ? ? ? ? ? ? Please gather me some flowers.（請(qǐng)給我采幾束花來(lái)。）

四級(jí)真題：（2012年6月——深度閱讀）

It’s the kind of work that’s done every day at St. Andrew’s Episcopal Church in San Antonio, People who ?50? at its front door on the first and third Thursdays of each month aren’t looking for God-they’re there for something to eat.

答案：gather

4.?Increase

v.&n. 增加，增大，增強(qiáng)

參考例句：I'd like to increase my vocabulary.（我想增大的我詞匯量。）

? ? ? ? ? ? ? The increase in the human population magnifies the rubbish and garbage problem.（人口增長(zhǎng)加劇了垃圾問(wèn)題。）

四級(jí)真題：（2012年6月——完形填空）

For example, when people reflect on hurtful memories and grudges(怨恨)，they show negative physiological(生理的) effects, including ?86 ?heart rate and blood pressure, compared to when they reflect on sympathetic perspective-taking and forgiving.
86. A)added　　B)toughened　C)strengthened　　D)increased

答案：D)increased

5.?Prevent

v. 阻止…；妨礙…

參考例句：This discrepancy will prevent me from obtaining a visa.（因?yàn)檫@一差錯(cuò)，我將得不到簽證。）

? ? ? ? ? ? ? We recognized the possibility and took steps to prevent it happening.（我們認(rèn)識(shí)到了這種可能性，并且采取了一些預(yù)防措施。）

四級(jí)真題：（2011年6月——完形填空）

"But now we have a different understanding of healthy eating and the kinds of food necessary to __71__ not only heart disease but disease in general," she adds.
71. A)rescue ?B)prevent ? C)forbid ? D)offend

答案：B)prevent