题目
Unfortunately, there are a lot of environmental issues today, but that doesn't mean we can't help make changes. We today have more power than ever to make the Earth a bit greener. Recycling programs are available everywhere.Read the guidelines printed on your family's recycling box or bin to see what you can recycle and what you cannot.When you organize the recycling bottles, you should be sure they are .A old and uglyB very spotlessC half-emptyD reasonably clean
Unfortunately, there are a lot of environmental issues today, but that doesn't mean we can't help make changes. We today have more power than ever to make the Earth a bit greener. Recycling programs are available everywhere. Read the guidelines printed on your family's recycling box or bin to see what you can recycle and what you cannot. When you organize the recycling bottles, you should be sure they are . A old and ugly B very spotless C half-empty D reasonably clean
题目解答
答案
我们来一步步分析这道题目。
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### 题目内容回顾：
文章讲的是关于环保、回收利用的内容，提到我们要帮助地球变得更绿色，现在有很多回收项目，而且强调了要阅读家里的回收箱上的指南，了解哪些东西可以回收，哪些不可以。
然后题目问：
> When you organize the recycling bottles, you should be sure they are ______.
选项是：
A. old and ugly
B. very spotless
C. half-empty
D. reasonably clean
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### 解题思路：
我们要找出哪个选项最符合回收瓶子时的正确做法。
#### 分析选项：
- **A. old and ugly（又旧又丑）**：这与回收的要求无关，甚至可能是不合适的。回收的是可再利用的物品，而不是因为它们旧或丑才回收。**排除。**
- **B. very spotless（非常干净）**：虽然干净是好的，但“very spotless”（非常非常干净）可能过于严格，实际生活中并不需要把瓶子洗得一尘不染才回收。**不太现实，排除。**
- **C. half-empty（半满的）**：如果瓶子是半满的，可能还残留液体，这会给回收带来麻烦，比如污染其他可回收物。**不符合回收要求，排除。**
- **D. reasonably clean（相对干净）**：这个选项是最合理的。回收时，瓶子不需要洗得特别干净，但也不能有大量残留物。只要“相对干净”就可以了，这样既符合环保要求，也便于回收处理。
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### 正确答案：
$$
\boxed{D}
$$
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### 总结：
在回收瓶子时，最重要的是确保它们**相对干净**，避免污染其他可回收物，同时也不需要过度清洗。所以正确答案是：
$$
\boxed{D. reasonably clean}
$$