外研版高中英語(yǔ)必修3module4sandstormsinasiagrammar同步練習(xí)-資料下載頁(yè)
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【導(dǎo)讀】1．現(xiàn)在最重要的工作是處理污染問(wèn)題。2．想在科學(xué)領(lǐng)域成功，需要付出巨大的努力。3．班主任沒(méi)有參加晚會(huì)，我們都認(rèn)為非常遺憾。4．得到了你想得到的，你還有什么可抱怨的？5．教授讓誰(shuí)幫忙來(lái)做這個(gè)實(shí)驗(yàn)？
【正文】 ng in incidence (發(fā)生率 ) faster than any other cancer in the United States. But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning. The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer— people with fair skin and freckles(雀斑 ), for example— are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often. The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study. 短文解析： 本文介紹了最新研究發(fā)現(xiàn)沒(méi)有證據(jù)證明用來(lái)預(yù)防皮膚癌的防曬霜事實(shí)上能夠使得皮膚癌的機(jī)率增大。 1． The underlined word “ flaws” in the 2nd paragraph most probably means________. A． evidences B． facts C． faults D． failures 答案： C 解析： 詞義猜測(cè)題。由第一、二段內(nèi)容以及 flaws 后面的定語(yǔ)從句 that had reported可以推斷這是以前研究中的錯(cuò)誤。 2． People with fair skin and freckles________. A． seldom use sunscreen B． are more in danger of skin cancer C． can be free from the harm of the sun D． often expose themselves to the sun 答案： B 解析： 細(xì)節(jié)理解題。根據(jù)文章倒數(shù)第二段內(nèi)容可知。 3． We can learn from the passage that________. A． sunscreen users get skin cancer more often B． the volunteers have proved the effect of sunscreen C． the new study was based on the experiences of volunteers D． the number of skin cancer patients is increasing in America 答案： D 解析： 細(xì)節(jié)理解題。根據(jù)文章第三段內(nèi)容我們可以得出在美國(guó)得皮膚癌的人數(shù)正在上升。 4． Which of the following can be the best title for this passage? A． Sunscreen to Prevent Skin Cancer B． Sunscreen to Increase Skin Cancer C． Skin Cancer Caused by Sunscreen D． Skin Cancer Caused by Freckles 答案： A 解析： 主旨大意題。本文闡釋以前對(duì)防曬霜的一個(gè)錯(cuò)誤認(rèn)識(shí)，指出防曬霜并沒(méi)有增大人們得皮膚癌的機(jī)率，因此 B、 C、 D 都是錯(cuò)誤的。
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