Keeping Products in Use
When an electronic device stops working, replacing it can seem more convenient than repairing it. New models are widely advertised, whereas the cause of a fault may be difficult to identify. Yet manufacturing a replacement requires materials and energy, even when only one small component of the old device has failed. Designers can address this problem by making components easier to remove. Screws, for example, allow a case to be opened without breaking it, unlike some permanent adhesives. Such features ( 1 ). A worn battery need not bring an otherwise functioning product's useful life to an end.
Design alone, however, is insufficient. A device may be easy to open, but owners gain little from this if replacement components are unavailable or cost nearly as much as a new product. Clear instructions and access to suitable tools also matter. ( 2 ), making a product technically repairable does not necessarily make repair a practical choice. Manufacturers must consider the conditions under which people will actually attempt it, including the time and expense involved.
Even successful repair should not be treated as automatically preferable in every case. Some older appliances consume considerably more electricity than efficient replacements. For these products, the environmental effects of continued use need to be weighed against those of manufacturing something new. The appropriate decision therefore ( 3 ). Assessing both production and use gives consumers a more reliable basis for choosing than a rule that all old devices should be kept indefinitely.
Q1空欄 (1) に入る語として最も適切なものを選択せよ
Q2空欄 (2) に入る語として最も適切なものを選択せよ
Q3空欄 (3) に入る語として最も適切なものを選択せよ
Keeping Products in Use
When an electronic device stops working, replacing it can seem more convenient than repairing it. New models are widely advertised, whereas the cause of a fault may be difficult to identify. Yet manufacturing a replacement requires materials and energy, even when only one small component of the old device has failed. Designers can address this problem by making components easier to remove. Screws, for example, allow a case to be opened without breaking it, unlike some permanent adhesives. Such features ( 1 ). A worn battery need not bring an otherwise functioning product's useful life to an end.
Design alone, however, is insufficient. A device may be easy to open, but owners gain little from this if replacement components are unavailable or cost nearly as much as a new product. Clear instructions and access to suitable tools also matter. ( 2 ), making a product technically repairable does not necessarily make repair a practical choice. Manufacturers must consider the conditions under which people will actually attempt it, including the time and expense involved.
Even successful repair should not be treated as automatically preferable in every case. Some older appliances consume considerably more electricity than efficient replacements. For these products, the environmental effects of continued use need to be weighed against those of manufacturing something new. The appropriate decision therefore ( 3 ). Assessing both production and use gives consumers a more reliable basis for choosing than a rule that all old devices should be kept indefinitely.
Q1空欄 (1) に入る語として最も適切なものを選択せよ
Q2空欄 (2) に入る語として最も適切なものを選択せよ
Q3空欄 (3) に入る語として最も適切なものを選択せよ