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  3. When you choose a freezer, remember it’s probably going to be with you for a

When you choose a freezer, remember it’s probably going to be with you for a

游客2024-10-29  39
问题     When you choose a freezer, remember it’s probably going to be with you for a long time. No single style or size is best, so it’s important to know which freezer is right for your needs.
   First, decide if you want an upright or chest model. Uprights are more convenient. Their storage space is more accessible and they take up less floor area. However, chest models are more energy-efficient because less cold air escapes when they are open.
   If you’re buying an upright, you’ll have to choose between frostless or manual defrost. Chest freezers are always manual. Frostless freezers automatically defrost at preset intervals and remove the water. Manual models must be defrosted by hand every few months or whenever frost accumulates to about a quarter of an inch.
    To help your freezer reach a ripe old age, try to find a spot that’s cool, dry, and away from drafts. Drafts and heat will raise the freezer’s cabinet temperature and make it work harder to keep cool. That means wasted energy and a shortened compressor life.
    Dry air is important because high humidity can cause the freezer to rust outside and frost up inside. With proper care, a freezer can serve you for 15 years or more.
   Frostless models require less care than manual defrost freezers. The interior of a frostless unit should be washed periodically with warm water and baking soda or a mild soap, rinsed, and dried.
    To get the most from your freezer, check regularly to make sure it’s providing a true zero-degree temperature.
    Keep the freezer at least three-quarters full. The emptier it gets, the more energy is wasted. If more than three pounds of food per cubic foot of storage space is added every 24 hours, the resulting high or low temperatures can damage the food. [br] Which statement best describes the main idea of the passage?
选项 A、It discusses the advantages and disadvantages of freezers.
B、It tells the most economical ways to use a freezer.
C、It explains how to defrost a manual-defrost freezer.
D、It offers advice about choosing and caring for a freezer.
答案 D
解析 本题询问全文的主要内容。在完成前三题的基础上不难看出，全文向读者提供了选择和保养冰箱的有效方法。A是说本文谈论冰箱的优缺点，与本文内容无关；B是说文章谈论使用冰箱的最经济的方法，说法不错但不全面；C是说文章解释如何为手工除霜型冰箱除霜，虽确实提到但并非主要内容；只有D言简意赅地概括了全文的主要内容。
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