Unit4易错专题专练2025-2026学年人教版英语八年级下册
2025-2026学年八年级下册英语 Unit4易错专题专练+全解全析
本单元核心聚焦感叹句辨析、as...as...原级比较、so...that/such...that结果状语区分、自然类词性转换、rise/raise短语辨析、自然专有名词大小写六大高频失分点。
易错点一:感叹句what/how的终极辨析
感叹句是本单元最核心的失分点,学生常混淆判定逻辑,记住“三步判定法”:
1. 先看句尾是否有名词:有名词用what,无名词(直接跟形容词/副词)用how
2. 若有名词,再看名词是单数/不可数/复数:
◦ 单数可数:What a/an + adj. + 可名单 + 主谓!
◦ 不可数名词:What + adj. + 不可名单 + 主谓!
◦ 复数名词:What + adj. + 可名复 + 主谓!
3. 若直接跟形容词/副词:How + adj./adv. + 主谓!
易错警示:How后面绝对不能加a/an,What修饰单数名词时**必须加a/an。
易错题1
______ amazing the Huangguoshu Waterfall is!
A. What
B. What a
C. How
D. How a
易错题2
______ fantastic view the West Lake is!
A. What
B. What a
C. How
D. How a
易错点二:as...as...原级比较的用法
as + adj./adv.原级 + as 表示“和……一样……”,学生常犯两个错误:
1. 中间误加比较级/最高级:as taller as(错误)→ as tall as(正确)
2. 否定式混淆:not as/so + 原级 + as 表示“不如……”,可与比较级互换(Tom is not as tall as Jim. = Tom is shorter than Jim.)
易错警示:as...as中间永远用原级,不管是比较还是否定。
易错题3
The weather in Guilin is as ______ as that in Kunming. They are both comfortable.
A. pleasant
B. more pleasant
C. most pleasant
D. the most pleasant
易错题4
The Yellow Mountain is not ______ high ______ Mount Tai, but it has more strange pines.
A. as; so
B. so; as
C. as; as
D. so; so
易错点三:so...that vs such...that 结果状语区分
两者都表“如此……以至于……”,但修饰对象完全不同,且要和Unit3的so that(目的状语)区分开:
结构 修饰对象 例句
so + adj./adv. + that 形容词/副词 It was so cold that we stayed at home.
such + (a/an) + adj. + n. + that 名词(短语) It was such a cold day that we stayed at home.
易混特例:so + adj. + a/an + 可名单 + that = such + a/an + adj. + 可名单 + that,如so beautiful a flower = such a beautiful flower。
易错题5
The fog was ______ thick ______ we couldn't see the road clearly.
A. such; that
B. so; that
C. such a; that
D. so a; that
易错题6
It was ______ amazing view ______ we took hundreds of photos.
A. so; that
B. such; that
C. so an; that
D. such an; that
易错点四:自然类名词vs形容词的词性转换
本单元高频自然词汇的词性混淆是学生失分重灾区:
名词(事物) | 形容词(特征) | 易错示例 |
fog(雾) | foggy(有雾的) | It's fog today.(错)→ It's foggy today.(对) |
wind(风) | windy(有风的) | The windy day made my hair messy.(错)→ The windy day...(对,注意wind→windy) |
cloud(云) | cloudy(多云的) | It was cloud yesterday.(错)→ It was cloudy yesterday.(对) |
nature(自然) | natural(自然的) | We should protect nature wonders.(错)→ natural wonders(对) |
易错警示:描述天气/自然特征时,be动词后必须接形容词,不能直接用名词。
易错题7
Look at the sky! It's ______ (cloud) today. We can't see the stars.
A. cloud
B. cloudy
C. clouding
D. cloudly
易错题8
The ______ (nature) wonder of the Amazon Rainforest attracts millions of visitors every year.
A. nature
B. natural
C. naturally
D. natures
易错点五:rise vs raise 短语辨析
两者都和“上升/举起”相关,但用法完全不同:
• rise:不及物动词,无被动,主语通常是物(太阳、水位、价格等),意为“升起;上升”
• raise:及物动词,有被动,主语通常是人,意为“举起;筹集;饲养”
易错警示:The sun rises.(正确);The sun raises.(错误);I raised my hand.(正确)。
易错题9
The sun ______ in the east every morning, creating a breathtaking view.
A. rise
B. rises
C. raise
D. raises
1. 去年夏天和家人去了黄山;
2. 奇松和云海非常壮观(用感叹句);
3. 黄山的日出和泰山的一样美;
4. 天气太冷以至于我们穿了厚外套;
5. 你的感受:不虚此行。
参考答案与解析
一、基础过关答案
1. fog
2. windy
3. shape
4. take in
5. give off
6. the Amazon Rainforest
7. The Himalayas
8. natural
表示“有雾的天气”。
17. large
【解题逻辑】as...as中间用原级,large是原级,符合“和7000万个足球场一样大”的语境。
18. attract
【解题逻辑】主语pines是复数,一般现在时谓语动词用原形attract,表示“吸引游客”。
19. is rising
【解题逻辑】Look!提示动作正在进行,用现在进行时,主语the sun是单数,be动词用is。
20. natural
【解题逻辑】修饰名词wonders需要用形容词,nature的形容词是natural,表示“自然的奇观”。
四、句型转换答案
21. What fantastic22. not as/so; as23. so cold a24. Does; give25. Where did; visit
五、语法填空答案
26. amazing
27. beautiful
28. that
29. of
30. didn't enjoy
31. well
32. hundreds
33. natural
34. that
35. an