Question

【题目】 While you are heating your food, you may wonder how close you can safely stand next to a microwave, and whether any radiation could escape from the device and potentially harm you.

In theory, microwaves can heat body tissues in the same way they heat food, and at high levels, microwaves can cause burns and cataracts. 【1】 They will generally occur when people are exposed to large amounts of radiation escaping through openings in the oven. As a result, there is little cause for concern about using microwaves ovens, unless there is damage to the door.

Still, the FDA (美国食品和药物管理局) recommends that you check your microwave oven carefully and do not use it if the door doesn't close properly, or if it is "bent, warped, or otherwise damaged." 【2】

As far as injuries from microwave ovens go, the most common way people are injured is via heat-related burns from touching hot containers or overheated foods, or being exposed to exploding liquids. 【3】

The agency also warns that, when you use a microwave to heat water in a cup, there's a risk of the water becoming "superheated," which means it has heated past its boiling point. 【4】But just a slight disturbance to the water — which can occur when touching or picking up the cup — can cause an eruption of boiling water. This can lead to skin burns or scalding injuries, particularly on the face and hands. To prevent superheated water from forming, the FDA says people should not exceed the recommended heating time for water, as indicated in the oven's instruction book.

【5】

A.But these types of injuries are very rare.

B.When this happens, the water does not appear to be boiling.

C.However, injuries from microwave radiation are unavoidable sometimes.

D.Though microwaves don't affect health as X-rays do, that doesn't mean they are risk-free.

E.People should use common-sense precautions when handling hot foods in microwaves.

F.Indeed, it's a good idea to follow the instruction book to help keep yourself safe when using it.

G.Besides, it is suggested that you don't lean against a microwave for too long during operation.

Answer 1

【答案】

【1】A

【2】G

【3】E

【4】B

【5】F

【解析】

这是一篇说明文。当你在加热食物的时候，你可能想知道你站在微波炉旁边有多安全，是否有任何辐射会从微波炉中逸出并对你造成潜在的伤害。文章介绍用微博炉时应注意的事项。

【1】根据上文提示“从理论上讲，微波可以像加热食物一样加热人体组织，如果加热的程度过高，微波会导致烧伤和白内障。”再根据下文提示“它们通常发生在人们暴露在通过烤箱开口泄漏的大量辐射中时。”承接上下文，A项But these types of injuries are very rare.（但是这种类型的伤害非常罕见。）切题。该项中的but表示一种转折关系，故选A。

【2】根据上文提示“尽管如此，美国食品和药物管理局还是建议你仔细检查你的微波炉，如果微波炉的门关不上，或者门‘弯曲、变形或其他损坏’，不要使用微波炉。”承接上文，G项Besides, it is suggested that you don't lean against a microwave for too long during operation.（另外，在操作过程中，不要太长时间地倚靠在微波炉上。）切题。故选G。

【3】根据上文提示“就微波炉造成的伤害而言，人们最常见的受伤方式是接触热容器或过热的食物，或接触爆炸的液体，从而导致灼伤。”承接上文，E项People should use common-sense precautions when handling hot foods in microwaves.（人们在使用微波炉加热食物时应采取常识性的预防措施。）切题。故选E。

【4】根据上文提示“该机构还警告说，当你用微波炉加热杯子里的水时，有水变得“过热”的风险，这意味着水的温度超过了沸点。”承接上文，B项When this happens, the water does not appear to be boiling.（当这种情况发生时,水似乎不会沸腾。）切题。故选B。

【5】根据上文提示“为了防止过热的水形成,FDA说,人们不应该超过推荐的水加热时间,正如在烤箱的说明书所示。”承接上文，F项Indeed, it's a good idea to follow the instruction book to help keep yourself safe when using it.（事实上，在使用的时候按照说明书来确保自己的安全是个好主意。）切题。故选F。