题目内容

【题目】— I haven’t seen you for ages.

— Come over for a chat so we can ______ each other’s news.

A.live up toB.end up withC.catch up onD.hold on to

【答案】C

【解析】

考查动词短语辨析。句意:——很久没见到你了。——过来聊天吧,以便我们了解一下彼此的情况。A. live up to遵守,不辜负;B. end up with以……结束;C. catch up on得到……的消息;D. hold on to坚持。catch up on each other’s news:得到彼此的消息,符合句意。故选C

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【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. 4But 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.

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