题目内容
Since drug abusers have difficulty＿the addiction, support groups where they can talk about their struggles and find new ways to manage in the world are often needed.
A. to rid? B. breaking? C. to remove? D. relieving
B
【解析】
试题分析：由于滥用药物者难以去除毒瘾, 他们可以在那里谈论他们的斗争和寻找新的方法来管理的世界上的支持团体通常很需要。因为这句话使用了have difficulty （in） doing这个词组，所以排除AC，而break打破，relieve缓解，
这里应该用break，表示戒毒，选B。
考点：考查词组和动词
Throw out the bottles and boxes of drugs in your house．A new theory suggests that medicine could be bad for your health．This new theory argues that healing （the process of becoming healthy and strong again） is at our fingertips：we can be healthy by doing Reiki on a regular basis．根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
__1____Painkillers in a tablet can make your headache go away. Antibiotic cream（抗生膏）from a tube can prevent your cuts from becoming infected. But can medicine come packaged in chicken eggs?
A team of scientists from Scotland says yes. They've engineered special chickens that lay eggs with disease-treating drugs inside.
_2____Animals make thousands of proteins—they’re the main ingredient in skin, hair, milk, and meat. Since animals can make proteins easily, they’re good candidates for making protein drugs.
Researchers have already made cows, sheep, and goats that pump out protein drugs in their milk. But chickens are not expensive to take care of; what’s more, they need less room, and grow faster than these other animals. “ __3____”says Simon Lillico of the Roslin Institute near Edinburgh, Scotland.
Lillico and a team of researchers changed chickens’ DNA—the code that tells cells how to make proteins so that the birds’ cells made two protein drugs. __4____
The scientists altered the chickens’ DNA so that the birds made these drugs only in their egg whites (蛋清). This protects the chickens’ bodies from the drugs’ possible harmful effects and makes it easy for scientists to collect the drugs.
These special chickens can pass on their drug-laying abilities to their chicks. __5____ The scientists need to improve these chickens before they roost (栖息) in drug companies’ labs. The birds don’t make enough drugs to treat people yet. But once the researchers perfect their technique, you might eventually take your medicine sunny-side up.
| A．Medicine comes in lots of different uses. |
| B．Those qualities could make chickens a better choice to become living drug factories. |
| C．So far, the Scottish researchers have bred five generations of drug—producing birds. |
| D．Some chickens are found having the ability of treating diseases. |
F. These drugs are made of molecules called proteins.
G. Medicine comes in lots of different packages.