Unit5 A fine balance语法单元复习边讲边练 2026-2027学年外研版英语九年级上册
九年级英语上册 Unit5 A fine balance语法
单元复习边讲边练
内容导读：单元核心语法复习要点·边讲边练（精讲+习题+全解全析）
单元必考核心语法：定语从句
1. that / which 修饰事物的限制性定语从句（本单元核心）
2. that 专属必考特殊规则（只用that、不用which）
3. that/which/who 人/物综合辨析、关系词省略、主谓一致
第一部分 单元核心语法 逐点精讲（必背考点）
考点1：基础用法（修饰事物）
先行词为事物/动物时：
1. that / which 均可引导定语从句
2. 可在从句中作主语（不可省略）、宾语（可省略）
例1：The forest that/which protects wildlife is important.（作主语，不省）
例2：The balance (that/which) we keep is valuable.（作宾语，可省）
考点2：中考最高频——只用that、不用which的5种情况（单元重难点）
先行词指物，满足以下任一条件，只能用that，绝对不能用which：
1. 先行词被 all, little, much, everything, nothing, anything 等不定代词修饰
2. 先行词被 最高级、序数词 修饰
3. 先行词被 the only, the very, the last 修饰
4. 先行词既有人又有物
5. 先行词为 all, no, few 等修饰
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考点3：只能用which、不用that的情况（了解易错）
1. 介词之后 只能用 which
2. 非限制性定语从句中只用which（本单元不考，无超纲）
考点4：关系词省略规则（必考填空）
1. 关系词（that/which/who）作从句宾语 → 可以省略
2. 关系词作从句主语 → 绝对不能省略
考点5：定语从句主谓一致
从句谓语动词单复数，跟随前面的先行词：
先行词单数/不可数 → 从句谓语三单
先行词复数 → 从句谓语原形
考点6：单元核心话题短语（生态平衡）
1. natural balance 自然平衡
2. protect the ecosystem 保护生态系统
3. endangered animals 濒危动物
4. in danger of extinction 濒临灭绝
5. keep the balance of nature 保持自然平衡
第二部分 当堂对点基础训练（随学随练·夯实基础）
一、选用正确关系词填空（that / which / who）（1-10）
1. The plants ________ grow in forests protect our earth.
2. This is the best environment ________ we have ever seen.
3. All ________ we need is to protect natural balance.
4. The river ________ was polluted is becoming clean now.
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5. The only thing ________ matters is protecting wildlife.
6. Animals ________ live in nature need a safe home.
7. There is nothing ________ can stop us from protecting nature.
8. The trees ________ they planted grow well.
9. This is the first wetland ________ attracts many birds.
10. People ________ protect nature are our heroes.
二、用所给动词正确形式填空（定语从句主谓一致）（11-15）
11. The forest that ________ (provide) homes for animals is huge.
12. The rules that ________ (protect) nature are necessary.
13. A balance that ________ (keep) well makes the world beautiful.
14. The wildlife that ________ (live) here is very precious.
15. The actions that we ________ (take) can change the environment.
第三部分 单元语法综合提升检测卷（中考标准题型）
一、单项选择（16-30，每题2分，共30分）
16. The river ______ runs through our city is very clean now.
A. who B. that C. what D. where
17. This is the most beautiful park ______ I have ever visited.
A. which B. who C. that D. what
18. All ______ we can do is to protect the natural balance.
A. that B. which C. who D. whose
19. The animals ______ live in this ecosystem are very special.
A. who B. that C. what D. where
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