As millions of playthings are recalled, doctors are reminded that the risks of lead exposure continue for young patients.

Lead is such a well-known health(危害)- perhaps even contributing to the fall of the Roman Empire- that it came as a shock to discover that toys played by children could contain lead. Doctors are now dealing with the aftershocks.

Just how dangerous is this exposure? That’s the question physicians are being asked by parents who find a lead-polluted Elmo, of Dora. Millions of others toys, lunch boxes and pieces of jewelry manufactured in China have been recalled because they contain lead either in the paint that coats them or as a component of the plastic used to make the item more flexible. The lead content in some of the toys recalled this summer was 180 times the amount allowed by law. Some pieces of jewelry were almost 100% lead.

Experts advise that the items do cause a risk and that doctors should urge parents to check the comprehensive lists of recalled products on the Consumer Product Safety Commission’s Web site and return any appearing on those lists to the manufacturers.

If exposure is suspected, a blood test is in order . Since there is no safe level of this universal (普遍存在的) element, the risk face by children for lead poisoning and its accompanying threat of learning disabilities and behavior problems is considerable.

Doctors who have toys in their waiting rooms also are advised to see if any of them have been recalled and to check for chipped, flaking paint-even on those that haven’t yet been recalled—since new announcements of toy risk continue.

1. Why does the author mention “the fall of the Roman Empire”?

A. To tell us a strange story.

B. To warn us to keep away from lead.

C. To explain why the Roman Empire fell.

D. To show how terrible lead poisoning is.

2.What is Dora according to the passage?

A. The name of a kind of metal.

B. The name of a girl.

C. The name of a toy.

D. The name of a toy company.

3.What should parents do if they are not sure whether their kids have ever touched such toys or not?

A. They should ask the experts for advice.

B. They should have a medical examination.

C. They should have their children blood-tested.

D. They should collect all the toys and check online first.

4. From the report we can infer that_____.

A. children who are exposed to lead have learning disabilities

B. the unsafe toys have all been listed on the website

C. lead is used mainly to make the products flexible

D. some toy and jewelry manufacturers will suffer heavy losses

根据短文内容,从短文后的七个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。

Living with a roommate can be a great experience as many roommates become lifelong friends. However, roommates living together under the same roof for a long time unavoidably conflict with each other. 1.________ To prevent this from happening to you, each conflict should be addressed in a productive, healthy way.

1. Set a time for discussion.

Once conflicts occur, you need to set up a time to discuss the conflict. 2.________ They may think about any problems they want to discuss. It also allows for a better discussion as the both roommates will most likely enter the discussion fairly calm.

2. Make rules for discussion

Before discussing the actual conflicts, set up some rules to guide the discussion. For example, each roommate is allowed to air one problem at a time and the other roommate has a chance to respond to it before another one is brought up. Making rules beforehand can prevent a screaming match from breaking out. 3.________

3.4.________

You can use your discussion to point out to your roommates their great traits and specific things you like about them. While this won’t solve the conflict, it can help your roommates be more understanding of your point of view and more willing to compromise.

4. Come up with a written roommate agreement

Once grievances(不满)have been aired by both parties you should develop a roommate agreement that is written down. This agreement should discuss what the rules are as well as what consequences exist for breaking them. For example, roommates having a conflict about overnight guests may compromise to allow overnight guests only on weekends with guests on weekdays being gone by 11 p. m. 5.________

A. Talk about your problems openly.

B. Point out good things about roommates.

C. Being honest can avoid unfriendly discussion.

D. This provides both parties a chance for preparation.

E. And disaster can strike when a conflict never gets settled.

F. A consequence may be that the violator(违反者) pays $5 for breaking the rules.

G. This is because both sides know they will have an opportunity to speak.

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