Question

11．It's not hard to find drugs，and sometimes it may seem like everyone's doing them-or wanting you to do them．But as with anything that seems too good to be true，there are downsides to taking drugs．
How Drugs Work
Drugs are chem icals that change the way our bodies work．Some are medicines that help people when doctors prescribe（開處方） them．Many have no medical use or benefits．
When taken，drugs find their way into the bloodstream．From there，they're sent to the brain and other parts of the b ody．In the br ain，drugs may strengthen or weaken the senses，change how alert or sleepy people feel，and sometimes decrease physical pain．
Because of the way drugs work on the brain，they affect the ability to make healthy choices and decisions．Even drinking makes people more likely to get involved in dangerous situations，like driving under the influence or having unprotected sex．
How drugs affect people depends on lots of things：
●the kind of drug taken
●how much is taken
●how often someone uses it
●how quickly it gets to the brain
●what other drugs，food，or substances are taken at the same time
●the person's body size，shape，and chemistry
Although substances can feel good at first，they can do a lot of harm to the body and brain．Drinking alcohol，smoking or using tobacco，taking illegal drugs，even sniffing glue all damage the human body．
8．Which of the following can replace"downsides"？B
A．benefits        B．disadvantages         C．effects      D．changes
9．Which is wrong about drugs？B
A．Drugs change how our body works．
B．Many drugs have no medical benefits．
C．All drugs may help people decrease physical pain．
D．Drugs affect people's ability to make healthy decisions．
10．According to the passage，all the things about drugs exceptAaffect people．
A．who prescribes them
B．the types of drugs taken
C．the food to take with drugs
D．the amount of drugs taken
11．What's the main idea of the passage？B
A．Finding drugs are not hard．
B．The way drugs work．
C．Things that contribute to how drugs affect people．
D．Taking drugs are not always good to people．

Answer 1

分析 文章講了毒品是怎么發(fā)揮作用的，以及影響毒品作用的因素，除了一些情況下治病外，它們更多會(huì)給人們帶來危害．

解答 8．B．詞義判斷題．由句意可知，藥物還會(huì)有導(dǎo)致吸毒的風(fēng)險(xiǎn)，這是缺點(diǎn)，disadvantages，故選B．
9．B．理解判斷題．由第二段Some are medicines that help people when doctors prescribe（開處方） them，可知毒品在醫(yī)生正確應(yīng)用的時(shí)候是有益的，B選項(xiàng)錯(cuò)誤，故選B．
10．A．理解判斷題．由How drugs affect people depends on lots of things中包含的點(diǎn)可知只有A項(xiàng)沒有提到，故選A．
11．B．主旨?xì)w納題．由文意可知，文章講了毒品是怎么發(fā)揮作用的，以及影響毒品作用的因素，因此可知文章講述了毒品是怎么生效的，故選B．

點(diǎn)評(píng) 關(guān)于科教類閱讀中的一些專業(yè)詞語或生詞，考生要學(xué)會(huì)略過某些對(duì)閱讀影響不大的詞．如果必須要弄清它的意思，則可以根據(jù)詞形進(jìn)行判斷，或者從該詞在句子中的功用以及與其他詞語之間的關(guān)系猜測(cè)生詞的意思．也可根據(jù)上下文和其他詞語的按時(shí)猜測(cè)生詞的含義．