英語(yǔ)四級(jí)選詞填空訓(xùn)練內(nèi)容整理：化學(xué)物質(zhì)污染

英語(yǔ)四級(jí)備考路上，選詞填空作為檢驗(yàn)詞匯精準(zhǔn)度與語(yǔ)境理解力的關(guān)鍵環(huán)節(jié)，是每位考生不可忽視的試煉場(chǎng)。通過(guò)這一題型，我們不僅能鞏固詞匯基礎(chǔ)，更能提升在復(fù)雜語(yǔ)境中靈活運(yùn)用的能力。以下，我們以“化學(xué)物質(zhì)污染”為英語(yǔ)四級(jí)選詞填空真題示例，深入探討這種練習(xí)在備考過(guò)程中的獨(dú)特價(jià)值。

英文原文

Timothy, a 54-year-old Alaskan fisherman, used to think he was safe from industrial pollutants at his home in Haines, a town with a population of 2,400 people and 4,000 eagles, with 8 million acres of protected wildland nearby. But in early 2021, Timothy agreed to take part in a biomonitoring project, in which people’s blood and urine were tested for ______ of chemicals. In this case, three potentially dangerous classes of compounds were found in common household items like face cream, tin cans, and shower curtains. The results, published in November in a report called “Is It in Us?” by an environmental group, were rather worrying. Everyone of the participants, ______ an Illinois state senator to a Massachusetts minister, tested positive for all three classes of pollutants. While the ______ presence of these chemicals does not necessarily indicate a health risk, the fact that typical Americans carry these chemicals at all shocked Timothy and his fellow participants.

選詞選項(xiàng)

A. traces
B. range
C. belong
D. demonstrated
E. excess
F. extending
G. habitually
H. necessarily
I. products
J. from
K. released

文章概要

本文講述了一位阿拉斯加漁民Timothy參與一項(xiàng)生物監(jiān)測(cè)項(xiàng)目，該項(xiàng)目檢測(cè)了參與者的血液和尿液中的化學(xué)物質(zhì)。結(jié)果令人擔(dān)憂，所有參與者都被檢測(cè)出含有三種潛在有害的家庭用品中的化學(xué)物質(zhì)。盡管這些化學(xué)物質(zhì)的微量存在不一定會(huì)造成健康風(fēng)險(xiǎn)，但它們的普遍存在還是震驚了所有參與者。

填空及答案解析

填空位置：people’s blood and urine were tested for ______ of chemicals.

答案：I. products

解析：此處需要填入的詞應(yīng)該與“chemicals”相關(guān)，并且能表示這些化學(xué)物質(zhì)來(lái)源于哪里。根據(jù)語(yǔ)境，這些化學(xué)物質(zhì)來(lái)源于日常用品，因此“products”是最合適的選項(xiàng)。

填空位置：Everyone of the participants, ______ an Illinois state senator to a Massachusetts minister, tested positive for all three classes of pollutants.

答案：J. from

解析：此句需要一個(gè)介詞來(lái)連接“an Illinois state senator”和“a Massachusetts minister”，表示參與者的范圍從某一位到另一位。根據(jù)語(yǔ)境，“from...to...”表示范圍，是合適的選項(xiàng)。

填空位置：While the ______ presence of these chemicals does not necessarily indicate a health risk...

答案：E. excess

解析：此句需要描述這些化學(xué)物質(zhì)的存在狀態(tài)，并且這種狀態(tài)與“不一定會(huì)造成健康風(fēng)險(xiǎn)”相對(duì)照。根據(jù)語(yǔ)境，“excess”表示過(guò)量，但此處并非指真正的過(guò)量，而是強(qiáng)調(diào)它們的存在狀態(tài)，故為合適選項(xiàng)。

通過(guò)以上解析，可以看出英語(yǔ)四級(jí)選詞填空不僅考察詞匯知識(shí)，還涉及對(duì)文章整體內(nèi)容的理解和邏輯推理能力。希望這個(gè)示例能夠幫助你更好地準(zhǔn)備英語(yǔ)四級(jí)考試。