Weather, seasons and the natural environment 天气、季节与自然环境

✗ 被问到环境问题时只写"这里天气很好，环境很美"。(only positive language when a problem was asked for) ✓ 这个地区最大的环境问题是空气污染，因为工厂太多了。(Zhège dìqū zuì dà de huánjìng wèntí shì kōngqì wūrǎn, yīnwèi gōngchǎng tài duō le.) — The biggest problem here is air pollution, because there are too many factories. Learn negative vocabulary (污染 wūrǎn, 干旱 gānhàn, 破坏 pòhuài) for problem-framed questions.

✗ 夏天比冬天很热。(很 wrongly inserted before the adjective in a 比 sentence) ✓ 夏天比冬天热。(Xiàtiān bǐ dōngtiān rè.) — Summer is hotter than winter. To show HOW MUCH hotter, add 一点儿/得多/多了 AFTER the adjective instead: 夏天比冬天热得多。(Xiàtiān bǐ dōngtiān rè de duō.) — much hotter. Never place 很 directly before the adjective in the basic X 比 Y + adjective pattern.

✗ 这里的风景很美。(bare statement, no detail) ✓ 这里周围有很多山和一条小河，秋天的时候树叶变成红色和黄色，风景非常美。(…qiūtiān de shíhou shùyè biàn chéng hóngsè hé huángsè, fēngjǐng fēicháng měi.) — lots of mountains and a small river; in autumn the leaves turn red and yellow. Always add a specific descriptive detail about how a place looks, not just a bare adjective.

✗ 我喜欢农村。(a bare opinion with no reason earns little credit, and in Speaking you must explain WHY, not just WHAT.) ✓ 我更喜欢住在农村，因为空气比城市新鲜，而且风景很美。(…yīnwèi kōngqì bǐ chéngshì xīnxian, érqiě fēngjǐng hěn měi.) — I prefer the countryside, because the air is fresher than the city and the scenery is beautiful. Always attach 因为 and a concrete reason.

A single negation or degree word changes the weather meaning, and questions hinge on it: 今天不冷 (not cold) versus 今天很冷 (very cold), or 有点儿冷 (a bit cold) versus 非常冷 (extremely cold). Watch 不/没/有点儿/非常 attached to a weather word, and do not answer on the adjective alone.

In a plain descriptive sentence (今天天气很热 -- today it is very hot), 很 before the adjective is normal. But in a 比-comparison (X 比 Y + adjective), 很 must NOT be inserted — ✗ 夏天比冬天很热 is ungrammatical. ✓ 夏天比冬天热 (plain comparison) or 夏天比冬天热得多 (with a degree, using 得多/一点儿 AFTER the adjective). Learners over-generalise "很 goes before an adjective" where it does not apply.

Weather sentences often turn on a second clause, but candidates answer on the first half. e.g. 今天出了太阳，可是有点儿冷 — it is sunny BUT a bit cold; an answer of only "sunny/warm" misses the 冷. Read or listen to the whole sentence, especially after 可是/但是, before deciding whether the weather is good or bad.