Recycling 回收与循环再用

Recycling comprehension and speaking marks turn on the exact key word, not a broad adjective. ✗ 我们家很环保。（太笼统）✓ 我们家会把可回收的垃圾分类，然后拿去回收站。(Wǒmen jiā huì bǎ kě huíshōu de lājī fēnlèi, ránhòu ná qù huíshōuzhàn.) — Our family sorts recyclable rubbish and takes it to the recycling station. The vague 环保 alone does not show the specific action the question wants.

When asked why a family or community started recycling, candidates give what happened afterwards instead of the cause. ✗ A: 后来邻居们把垃圾分开放了。（结果）✓ 因为附近的垃圾处理厂快装不下垃圾了，所以社区举办了环保活动。(Yīnwèi fùjìn de lājī chǔlǐchǎng kuài zhuāng bú xià lājī le, suǒyǐ shèqū jǔbàn le huánbǎo huódòng.) — Because the nearby waste plant was nearly full. Separate 原因 from 结果.

把 always needs a full verb phrase with a result or complement after the object — never the object alone. ✗ 我把垃圾。（动词缺失）✓ 我把垃圾拿去回收站了。(Wǒ bǎ lājī ná qù huíshōuzhàn le.) — I took the rubbish to the recycling station. A 把 sentence that stops after the object is grammatically incomplete with incomplete meaning, exactly the kind of structure that is not credited.

In a recycling reading passage, copying a whole sentence — with its irrelevant clauses — is not credited, and extra wrong material can cancel a correct point. Select the precise point and re-express it in your own words. ✗ copying 邻居们更愿意把塑料瓶和纸张分开放，垃圾也少了. ✓ answer only what is asked: 社区的垃圾明显减少了。(Shèqū de lājī míngxiǎn jiǎnshǎo le.) — The community's rubbish clearly decreased.

The writing paper (Ex4, Ex5) requires characters only — pinyin is never credited, even for a hard word. ✗ 我们应该做好lājī fēnlèi。 ✓ 我们应该做好垃圾分类。(Wǒmen yīnggāi zuò hǎo lājī fēnlèi.) — We should sort our rubbish well. If unsure of a character, choose a simpler word you know in characters rather than writing pinyin.

了 marks a completed or changed action, so it clashes with a habitual action marked by 每天 (every day). ✗ 我每天都扔了垃圾到楼下。 ✓ 我每天都把垃圾扔到楼下的垃圾桶。(Wǒ měitiān dōu bǎ lājī rēng dào lóuxià de lājītǒng.) — Every day I throw the rubbish into the bin downstairs. Drop 了 for a routine; keep it only for a specific completed event (昨天我把垃圾扔了).

Learners assume 环保 means putting rubbish out of sight, not separating it by category. In fact 垃圾分类 requires putting recyclable and non-recyclable rubbish into DIFFERENT bins. ✗ 把垃圾都丢进垃圾桶就是垃圾分类。 ✓ 垃圾分类要求把可回收和不可回收的垃圾分开放，而不是全部丢进同一个桶。(Lājī fēnlèi yāoqiú bǎ kě huíshōu hé bù kě huíshōu de lājī fēnkāi fàng, ér bú shì quánbù diū jìn tóng yí gè tǒng.)

Learners treat 把 as a free stylistic choice, not a structure fronting a specific, definite object. 我垃圾分类了 is not idiomatic — 分类 is already a verb-object compound (分 + 类), so it resists taking 垃圾 as a second object without 把. ✗ 我垃圾分类了。 ✓ 我把垃圾分类了。(Wǒ bǎ lājī fēnlèi le.) — I sorted the rubbish. 把 is required whenever a specific object is sorted or disposed of.