positive: 说明:引用此文请注明出处,并务请保留后面的有效链接地址,谢谢!<br>涉及turn的用法与短语<br>1.用作连系动词,表示“变成”“成为”等,其后通常接形容词作表语。如:<br>Leaves turn brown in autumn.秋天树叶变黄。<br>The weather has burned cold and windy.天气变得寒冷而且多风。<br>2.有时后接名词作表语,该名词一般为单数且其前不用冠词,多用来指没有预料到或并非人们所希望的变化。如:<br>He turned traitor.他成了叛徒。<br>He was a medical student before he turned writer.他在成为作家之前是学医的学生。<br>3.比较turn down与turn up:turn down表示“关小”(收音机等的音量),turn up表示“开大”(收音机等的音量),是一组反义词。如:<br>The TV is pretty loud. Can you turn it down a little?电视机声音太大了,能关小一点吗?<br>I can’t hear the radio very well; could you turn it up a bit?收音机我听不太清楚,你把它开大一点行吗?<br>另外,turn down还可表示“拒不接受或采纳”。如:<br>He asked her to marry him but she turned him down.他叫她嫁给他,但她拒绝了他。<br>而turn up还可表示“赴约”“到达”“出现”“(被)找到”“查阅”等。如:<br>He turns up late for everything.他干什么都迟到。<br>For some reason he didn’t turn up.由于某种原因他没有来。<br>Turn up the dictionary if you can’t spell the word.这个词如果不会拼,可以查字典。<br>4.比较turn in与turn into:turn in意为“上交”“上床睡觉”,turn into意为“(使)成为”“翻译”。如:<br>Turn in your homework, please.请把家庭作业交上来。<br>We tu
negative: 可以服用,因大豆中含有异黄酮,异黄酮既能代替雌激素和雌激素受体蛋白的结合从而发挥雌激素作用,又能干扰雌激素和雌激素受体蛋白的结合,发挥抗雌激素作用。这主要取决于人体内的激素状况:异黄酮对低雌激素者,发挥雌激素活性;对高雌激素者,发挥抗雌激素作用。