Unit 4 Amazing Plants and Animals单元重点易错专项训练2026-2027学年人教版八年级英语上册

**基本信息** 聚焦形容词最高级、核心词汇等10大考点，以“易错速记”提炼规则，通过基础+提升+拓展三层训练构建从语法规则到综合语用的系统突破路径，培养语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |语法规则|10考点，每考点9题|最高级规则/不规则变化、one of句型、范围介词(in/of/among)辨析|从词形变化到句型结构，再到范围表达，层层递进| |词汇短语|核心词汇(5词)、重点短语(4组)、特定用法(4词)|词汇辨析(如amazing vs ancient)、短语搭配(如protect...from)|从词义理解到固定搭配，强化语境应用能力| |综合应用|综合交际3题/考点|问答逻辑(如What's amazing about...?答特征)、语篇补全|融合语法词汇，提升跨文化沟通与语用能力|

Unit 4 Amazing Plants and Animals · 单元重点易错专项训练 人教版（新版）八年级上册 Unit 4 Amazing Plants and Animals 单元重点易错专项训练 （10大考点 · 基础+提升+拓展 三层训练 · 附详细解析） ★ 考点一：形容词最高级规则变化（-est / most） ★ ⚠ 易错速记：① 一般词直接加-est；② 以e结尾加-st；③ 辅元辅双写加-est；④ 辅音+y变y为i加-est；⑤ 多音节词加most；⑥ 最高级前必须有the ◇ 基础题（选择题） ◇（ ）1. The blue whale is ______ animal in the world. A. large B. larger C. the largest D. the most large ◇（ ）2. Which is ______, the rose, the peony or the lotus? A. beautiful B. more beautiful C. the most beautiful D. most beautiful ◇（ ）3. Bamboo is one of ______ plants in the world. A. useful B. more useful C. the most useful D. the usefulest ▷ 提升题（选择题） ▷（ ）1. The African elephant is ______ land animal in Africa. A. big B. bigger C. the biggest D. biggest ▷（ ）2. Cheetahs run ______ among all land animals. A. fast B. faster C. the fastest D. fastest ▷（ ）3. Olivia says the ginkgo tree is ______ tree in her hometown. A. the oldest B. oldest C. older D. the older ★ 拓展题（用适当形式填空） ★（ ）1. The redwood is the ______ (tall) tree in the world. ★（ ）2. This flower is the ______ (beautiful) one in the garden. ★（ ）3. Chen Wei thinks science is the ______ (interesting) subject. ★ 考点二：最高级不规则变化（best / worst / most / least / farthest） ★ ⚠ 易错速记：① good/well→best；② bad/badly→worst；③ many/much→most；④ little→least；⑤ far→farthest/furthest；⑥ 不规则变化无规律必须死记 ◇ 基础题（选择题） ◇（ ）1. Lily sings ______ in her class. A. good B. better C. the best D. best ◇（ ）2. This is ______ book I have ever read. A. the worst B. worst C. the worse D. bad ◇（ ）3. Zhang Hao has ______ friends in his school. A. the most B. most C. more D. the more ▷ 提升题（选择题） ▷（ ）1. — Which animal jumps ______, the frog, the rabbit or the kangaroo? — The kangaroo. A. high B. higher C. the highest D. highest ▷（ ）2. Olivia eats ______ meat because she wants to be healthy. A. the least B. least C. the less D. less ▷（ ）3. Chen Wei lives ______ from school, about 15 kilometres away. A. the farthest B. farthest B. the furthest D. far ★ 拓展题（用适当形式填空） ★（ ）1. Jam did ______ (badly) in the exam of all the students. ★（ ）2. This is the ______ (good) film I have seen this year. ★（ ）3. Bella has the ______ (little) free time because she has many hobbies. ★ 考点三：one of + the + 最高级 + 复数名词 句型 ★ ⚠ 易错速记：① one of 后接复数名词；② 最高级前必须有the；③ 谓语动词用单数（one作主语时）；④ 常见搭配：one of the most popular/fastest/useful... ◇ 基础题（选择题） ◇（ ）1. Bamboo is one of ______ subjects in Chinese paintings. A. the most popular B. most popular C. the popular D. popular ◇（ ）2. The blue whale is one of ______ animals on earth. A. amazing B. the most amazing C. most amazing D. more amazing ◇（ ）3. Bees are one of ______ insects for our ecosystem. A. important B. the most important C. most important D. the importantest ▷ 提升题（选择题） ▷（ ）1. The ginkgo tree is one of ______ trees in the world. A. old B. older C. the oldest D. oldest ▷（ ）2. Olivia thinks the cheetah is one of ______ animals because it runs so fast. A. the most exciting B. most exciting C. the exciting D. exciting ▷（ ）3. Kunming is one of ______ cities in China for flower viewing. A. the best B. best C. the better D. better ★ 拓展题（用适当形式填空） ★（ ）1. The redwood is one of the ______ (tall) trees in the world. ★（ ）2. Pandas are one of the ______ (cute) animals in the world. ★（ ）3. Qingdao is one of the ______ (beautiful) cities in China. ★ 考点四：最高级范围表达（in / of / among 的区别） ★ ⚠ 易错速记：① in + 地点/群体范围（in the world, in our class）；② of + 同类复数（of all animals, of the three）；③ among + 三者及以上（among all land animals）；④ 三者选一用 Which...A, B or C? ◇ 基础题（选择题） ◇（ ）1. The blue whale is the largest animal ______ the world. A. of B. among C. in D. on ◇（ ）2. Which is the tallest, the tree, the building ______ the mountain? A. and B. or C. but D. so ◇（ ）3. The cheetah runs fastest ______ all land animals. A. in B. of C. among D. between ▷ 提升题（选择题） ▷（ ）1. Olivia is the ______ of the three girls. A. tallest B. the tallest C. taller D. the taller ▷（ ）2. Xiamen is one of the most beautiful cities ______ China. A. of B. in C. among D. at ▷（ ）3. — Which animal is ______, the lion, the elephant or the whale? — The whale. A. heavy B. heavier C. the heaviest D. heaviest ★ 拓展题（用适当形式填空） ★（ ）1. The African elephant is the largest animal ______ (in / of / among) all land animals. ★（ ）2. Jam is the best runner ______ (in / of / among) his class. ★（ ）3. Which is the most dangerous, the snake, the spider ______ (and / or) the shark? ★ 考点五：核心词汇辨析（popular / amazing / ancient / hard-working / endangered） ★ ⚠ 易错速记：① popular with 受…欢迎；② amazing = 令人惊叹的（修饰物）；③ ancient = 古老的；④ hard-working 勤劳的（注意连字符）；⑤ endangered 濒危的 ◇ 基础题（选择题） ◇（ ）1. Bamboo is very ______ in China. Many people like it. A. amazing B. popular C. ancient D. endangered ◇（ ）2. The ginkgo tree is an ______ tree. It has a long history. A. popular B. amazing C. ancient D. hard-working ◇（ ）3. Bees are very ______ animals. They work all day. A. amazing B. ancient C. popular D. hard-working ▷ 提升题（选择题） ▷（ ）1. The blue whale is an ______ animal. We must protect it. A. popular B. amazing C. endangered D. ancient ▷（ ）2. The lotus flower is ______ to Chinese people. It stands for purity. A. amazing B. popular C. special D. ancient ▷（ ）3. Olivia thinks the folding fan is a(n) ______ invention. It can be folded easily. A. ancient B. popular C. amazing D. endangered ★ 拓展题（用适当形式填空） ★（ ）1. The panda is a(n) ______ (endanger) animal. We should protect it. ★（ ）2. This is an ______ (amaze) story about a talking tree. ★（ ）3. Chen Wei is a ______ (hard-work) student. He studies every day. ★ 考点六：重点短语（be connected with / play a part in / in order to / protect...from） ★ ⚠ 易错速记：① be connected with/to 与…有关联；② play a part/role in 在…中起作用；③ in order to + 动词原形 为了；④ protect...from 保护…免受 ◇ 基础题（选择题） ◇（ ）1. Plants and animals are all ______ each other. A. connect with B. connected with C. connecting with D. to connect with ◇（ ）2. Bees ______ an important part in nature. A. play B. take C. make D. do ◇（ ）3. We must work hard ______ protect wild animals. A. for B. to C. in order to D. so that ▷ 提升题（选择题） ▷（ ）1. Trees can ______ us ______ the hot sun. A. protect; from B. protect; of C. play; from D. play; of ▷（ ）2. Pollination is ______ the growth of plants. A. connected to B. connect with C. played a part in D. in order to ▷（ ）3. Chen Wei gets up early every day ______ he can catch the first bus to school. A. in order to B. in order that C. for D. protect ★ 拓展题（用适当形式填空） ★（ ）1. We should ______ (保护) wild animals from dying out. ★（ ）2. Ecosystems are closely ______ (connect) with each other. ★（ ）3. Bella studies hard in order ______ (pass) the exam. ★ 考点七：without / imagine / disappointed / in fact 用法 ★ ⚠ 易错速记：① without + n./doing 没有…；② imagine doing 想象做某事；③ disappointed 修饰人（感到失望的）；④ in fact = 实际上 ◇ 基础题（选择题） ◇（ ）1. ______ bees, about 80 per cent of plants cannot grow. A. With B. Without C. In D. For ◇（ ）2. Can you ______ (live) on an island alone? A. imagine live B. imagine living C. imagine to live D. imagines living ◇（ ）3. Lily was very ______ because it rained on the day of the school trip. A. disappoint B. disappointing C. disappointed D. to disappoint ▷ 提升题（选择题） ▷（ ）1. — Is the blue whale the largest animal? — ______, it is. It weighs up to 200 tons. A. For example B. In fact C. Without D. In order to ▷（ ）2. Olivia can't ______ life ______ her mobile phone. A. imagine; with B. imagine; without C. believe; without D. believe; with ▷（ ）3. Jam was ______ when he didn't see any butterflies in the park. A. disappointing B. disappointed C. surprise D. exciting ★ 拓展题（用适当形式填空） ★（ ）1. ______ (没有) water, plants cannot survive. ★（ ）2. Imagine ______ (fly) like a bird in the sky! ★（ ）3. Chen Wei was ______ (disappoint) because he lost the game. ★ 考点八：be home to / a symbol of / thousands of / up to 短语 ★ ⚠ 易错速记：① be home to 是…的栖息地/故乡；② a symbol of …的象征；③ thousands of 成千上万的（无具体数字）；④ up to 接近/多达/直到 ◇ 基础题（选择题） ◇（ ）1. Wuhan is ______ many famous universities. A. home to B. a home of C. the home to D. homes of ◇（ ）2. In Chinese culture, the lotus is ______ purity. A. a symbol B. a symbol of C. symbol of D. the symbol ◇（ ）3. There are ______ kinds of plants in the rainforest. A. thousand of B. thousands of C. two thousands D. two thousands of ▷ 提升题（选择题） ▷（ ）1. Some bamboo can grow ______ 30 metres tall. A. up to B. as C. for D. about ▷（ ）2. The Arctic Ocean is ______ many sea animals like whales and seals. A. house of B. home of C. home to D. a home to ▷（ ）3. Jinan is known as the city of springs. It is also ______ roses. A. home of B. home to C. a symbol of D. thousands of ★ 拓展题（用适当形式填空） ★（ ）1. The forest is home to ______ (千) of birds and insects. ★（ ）2. The redwood tree can live up ______ (to / for) 3,000 years. ★（ ）3. In China, the peony is a symbol ______ (of / for) wealth and honour. ★ 考点九：情态动词 can / could / be able to 表能力 ★ ⚠ 易错速记：① can 表现在能力；② could 表过去能力或委婉请求；③ be able to 可用于各种时态；④ 否定 couldn't = was/were not able to ◇ 基础题（选择题） ◇（ ）1. Birds ______ fly because they have wings. A. can B. could C. are able D. will ◇（ ）2. When Chen Wei was five, he ______ ride a bike. A. can B. could C. is able to D. will ◇（ ）3. Olivia ______ swim very well. She won first prize. A. can B. could C. is able to D. Both A and C ▷ 提升题（选择题） ▷（ ）1. — Could you help me with this heavy box? — Yes, I ______. A. can B. could C. am able D. will ▷（ ）2. When Jam was young, he ______ climb trees very fast. A. can B. could C. is able to D. was able ▷（ ）3. Bees ______ communicate with each other by dancing. A. can B. could C. are able D. Both A and C ★ 拓展题（用适当形式填空） ★（ ）1. Cheetahs ______ (can) run at 120 km/h. ★（ ）2. When she was a child, Bella ______ (can) name every flower in the garden. ★（ ）3. With hard work, Zhou Kai will be ______ (able) to pass the exam. ★ 考点十：综合交际与语篇运用（选择答语 / 补全对话 / 完形高频词） ★ ⚠ 易错速记：① What's amazing about...? 回答用 It's/They can...；② Which do you think is...? 选择答语；③ feel free to do 可以随便做；④ actually 用于纠正或强调事实 ◇ 基础题（选择题） ◇（ ）1. — What's amazing about the blue whale? — ______. A. It's the largest animal in the world B. Yes, it is C. It is big D. The whale ◇（ ）2. — Which do you think is the most beautiful flower, the rose, the peony or the lotus? — ______. A. Yes, the rose B. The peony C. I like flowers D. They are all beautiful ◇（ ）3. — What can plants do for us? — ______. A. They are green B. They can produce oxygen C. Yes, they can D. Plants are useful ▷ 提升题（选择题） ▷（ ）1. — I think the cheetah is the fastest animal. — ______. But the peregrine falcon is faster in the air. A. I disagree B. That's true C. No, it isn't D. You're wrong ▷（ ）2. — Can you tell me more about bamboo? — ______. What do you want to know? A. Sorry B. No, I can't C. Sure, feel free D. Yes, please ▷（ ）3. — Why are bees so important? — ______ they help plants grow through pollination. A. So B. Because C. And D. But ★ 拓展题（用适当形式填空） ★（ ）1. — What's amazing about redwood trees? — They can live up to 3,000 years. They are the ______ (old) living things on earth. ★（ ）2. — Can you imagine ______ (live) without trees? — No, I can't. ★（ ）3. — ______ (事实上), bamboo is a type of grass, not a tree. — Really? I didn't know that! 📖 参考答案与详细解析 ▎考点一：形容词最高级规则变化 【基础题】 1. The blue whale is ______ animal in the world. 答案：C。解析：最高级前必须有 the，large 是单音节词，最高级为 the largest。A 是原级，B 是比较级，D 中 most 用于多音节词。 2. Which is ______, the rose, the peony or the lotus? 答案：C。解析：三者选择用最高级，beautiful 是多音节词，最高级为 the most beautiful。注意 which 引导选择疑问句时最高级前仍需 the。 3. Bamboo is one of ______ plants in the world. 答案：C。解析：one of + the + 最高级 + 复数名词，useful 多音节词，用 the most useful。D 中 usefulest 不存在。 【提升题】 1. The African elephant is ______ land animal in Africa. 答案：C。解析：最高级前必须有 the，big 的单音节最高级为 the biggest。注意范围 in Africa 暗示最高级。 2. Cheetahs run ______ among all land animals. 答案：C。解析：副词最高级 fastest 修饰动词 run，the 可省略但在明确范围 among all land animals 时建议保留 the。 3. Olivia says the ginkgo tree is ______ tree in her hometown. 答案：A。解析：old 以辅音+d 结尾但非辅音+y，直接加 est，最高级为 the oldest。形容词最高级前必须有 the。 【拓展题】 1. The redwood is the ______ (tall) tree in the world. 答案：tallest。解析：tall 是单音节词，最高级直接加 est，变为 tallest。 2. This flower is the ______ (beautiful) one in the garden. 答案：most beautiful。解析：beautiful 是多音节词，最高级在前面加 most，注意必须有 the。 3. Chen Wei thinks science is the ______ (interesting) subject. 答案：most interesting。解析：interesting 是多音节词，最高级为 the most interesting。 ▎考点二：最高级不规则变化 【基础题】 1. Lily sings ______ in her class. 答案：C。解析：副词 well 修饰动词 sing，最高级为 the best。副词最高级前的 the 可保留。A 是原级，B 是比较级。 2. This is ______ book I have ever read. 答案：A。解析：bad 的最高级是 worst，形容词最高级前必须有 the。the worst book 意为"最差的书"。 3. Zhang Hao has ______ friends in his school. 答案：A。解析：many 的最高级是 most，the most friends 意为"最多的朋友"。最高级前必须有 the。 【提升题】 1. — Which animal jumps ______, the frog, the rabbit or the kangaroo? — The kangaroo. 答案：C。解析：三者选择用最高级，high 是单音节词，最高级为 the highest。副词修饰 jump。 2. Olivia eats ______ meat because she wants to be healthy. 答案：A。解析：little 的最高级是 least，the least meat 意为"最少的肉"。注意 least 是不规则变化。 3. Chen Wei lives ______ from school, about 15 kilometres away. 答案：A。解析：far 的最高级是 the farthest（或 furthest），表示"最远的"。副词最高级修饰 live。 【拓展题】 1. Jam did ______ (badly) in the exam of all the students. 答案：the worst。解析：badly 的最高级是 worst，副词最高级修饰 did。注意 badly→worse→worst 是不规则变化。 2. This is the ______ (good) film I have seen this year. 答案：best。解析：good 的最高级是 best，the best film 意为"最好的电影"。形容词最高级前必须有 the。 3. Bella has the ______ (little) free time because she has many hobbies. 答案：least。解析：little 的最高级是 least，the least free time 意为"最少的空闲时间"。 ▎考点三：one of + the + 最高级 + 复数名词 【基础题】 1. Bamboo is one of ______ subjects in Chinese paintings. 答案：A。解析：one of + the + 最高级 + 复数名词，popular 多音节词用 the most popular。subjects 是复数。 2. The blue whale is one of ______ animals on earth. 答案：B。解析：one of + the + 最高级 + 复数名词，amazing 多音节词用 the most amazing。animals 是复数。 3. Bees are one of ______ insects for our ecosystem. 答案：B。解析：one of + the + 最高级 + 复数名词，important 多音节词用 the most important。 【提升题】 1. The ginkgo tree is one of ______ trees in the world. 答案：C。解析：one of + the + 最高级 + 复数名词，old 单音节词最高级为 the oldest。trees 是复数。 2. Olivia thinks the cheetah is one of ______ animals because it runs so fast. 答案：A。解析：one of + the + 最高级 + 复数名词，exciting 多音节词用 the most exciting。 3. Kunming is one of ______ cities in China for flower viewing. 答案：A。解析：one of + the + 最高级 + 复数名词，good 的最高级是 best，用 the best cities。 【拓展题】 1. The redwood is one of the ______ (tall) trees in the world. 答案：tallest。解析：one of + the + 最高级 + 复数名词，tall 的单音节最高级为 tallest。 2. Pandas are one of the ______ (cute) animals in the world. 答案：cutest。解析：cute 以辅音+e 结尾，最高级加 st 变为 cutest。注意去 e 再加 est。 3. Qingdao is one of the ______ (beautiful) cities in China. 答案：most beautiful。解析：beautiful 多音节词，最高级为 the most beautiful。 ▎考点四：最高级范围表达（in / of / among） 【基础题】 1. The blue whale is the largest animal ______ the world. 答案：C。解析：in + 地点范围，in the world 是固定搭配，意为"在世界上"。of 后接同类复数，among 后接三者及以上对象。 2. Which is the tallest, the tree, the building ______ the mountain? 答案：B。解析：选择疑问句三者选一用 or 连接，A, B or C 是固定格式。不能用 and。 3. The cheetah runs fastest ______ all land animals. 答案：C。解析：among + 三者及以上对象，among all land animals 意为"在所有陆地动物中"。of 后接同类复数名词。 【提升题】 1. Olivia is the ______ of the three girls. 答案：A。解析：三者比较用最高级，形容词最高级前必须有 the，tall 的最高级为 the tallest。 2. Xiamen is one of the most beautiful cities ______ China. 答案：B。解析：in + 地点范围，in China 意为"在中国"。of 用于同类比较，among 用于三者及以上对象。 3. — Which animal is ______, the lion, the elephant or the whale? — The whale. 答案：C。解析：三者选择用最高级，heavy 的最高级为 the heaviest。注意选择疑问句中也用最高级。 【拓展题】 1. The African elephant is the largest animal ______ (in / of / among) all land animals. 答案：among。解析：among + 三者及以上对象，among all land animals 意为"在所有陆地动物中"。 2. Jam is the best runner ______ (in / of / among) his class. 答案：in。解析：in + 地点/群体范围，in his class 意为"在他班上"。 3. Which is the most dangerous, the snake, the spider ______ (and / or) the shark? 答案：or。解析：选择疑问句三者选一用 or 连接，A, B or C 是固定格式。 ▎考点五：核心词汇辨析 【基础题】 1. Bamboo is very ______ in China. Many people like it. 答案：B。解析：popular 意为"受欢迎的"，be popular in 是固定搭配。amazing 意为"令人惊叹的"，ancient 意为"古老的"，endangered 意为"濒危的"。 2. The ginkgo tree is an ______ tree. It has a long history. 答案：C。解析：ancient 意为"古老的"，与"有悠久历史"对应。popular 受欢迎的，amazing 令人惊叹的，hard-working 勤劳的。 3. Bees are very ______ animals. They work all day. 答案：D。解析：hard-working 意为"勤劳的"，与"整天工作"对应。注意 hard-working 有连字符。 【提升题】 1. The blue whale is an ______ animal. We must protect it. 答案：C。解析：endangered 意为"濒危的"，与"必须保护"对应。amazing 令人惊叹的，popular 受欢迎的，ancient 古老的。 2. The lotus flower is ______ to Chinese people. It stands for purity. 答案：C。解析：special 意为"特殊的"，与"象征纯洁"对应。也可以用 popular 但此处强调文化意义。 3. Olivia thinks the folding fan is a(n) ______ invention. It can be folded easily. 答案：C。解析：amazing 意为"令人惊叹的"，与"可以轻松折叠"对应。folding fan 是折扇。 【拓展题】 1. The panda is a(n) ______ (endanger) animal. 答案：endangered。解析：endanger 是动词，此处需要形容词 endangered（濒危的）。be an endangered animal 是固定表达。 2. This is an ______ (amaze) story about a talking tree. 答案：amazing。解析：amazing 修饰事物（story），意为"令人惊叹的"。amazed 修饰人（感到惊叹的）。 3. Chen Wei is a ______ (hard-work) student. 答案：hard-working。解析：hard-working 是复合形容词，意为"勤劳的"，有连字符。注意 work 加 -ing。 ▎考点六：重点短语 【基础题】 1. Plants and animals are all ______ each other. 答案：B。解析：be connected with 是固定短语，意为"与…有关联"。此处用被动语态 are connected with。 2. Bees ______ an important part in nature. 答案：A。解析：play a part in 是固定短语，意为"在…中起作用"。play an important part = play an important role。 3. We must work hard ______ protect wild animals. 答案：C。解析：in order to + 动词原形，意为"为了…"。so that 后接从句，for 是介词后接名词。 【提升题】 1. Trees can ______ us ______ the hot sun. 答案：A。解析：protect...from... 是固定短语，意为"保护…免受…"。protect us from the hot sun 保护我们免受烈日晒。 2. Pollination is ______ the growth of plants. 答案：A。解析：be connected to 意为"与…有关"。此处意为"授粉与植物生长有关"。 3. Chen Wei gets up early every day ______ he can catch the first bus. 答案：B。解析：in order that + 从句，意为"为了…"。in order to 后接动词原形，不接从句。 【拓展题】 1. We should ______ (保护) wild animals from dying out. 答案：protect。解析：protect...from... 保护…免受…。should 后接动词原形。 2. Ecosystems are closely ______ (connect) with each other. 答案：connected。解析：be connected with 是固定短语，意为"与…有关联"。用被动语态。 3. Bella studies hard in order ______ (pass) the exam. 答案：to pass。解析：in order to + 动词原形，意为"为了…"。此处 to pass 是不定式表目的。 ▎考点七：without / imagine / disappointed / in fact 【基础题】 1. ______ bees, about 80 per cent of plants cannot grow. 答案：B。解析：without 意为"没有"，without bees 意为"没有蜜蜂"。注意 without 是介词后接名词/doing。 2. Can you ______ (live) on an island alone? 答案：B。解析：imagine doing sth. 是固定搭配，imagine 后接动名词。imagine living 意为"想象生活在…"。 3. Lily was very ______ because it rained on the day of the school trip. 答案：C。解析：disappointed 修饰人，意为"感到失望的"。disappointing 修饰事物。Lily 是人，用 disappointed。 【提升题】 1. — Is the blue whale the largest animal? — ______, it is. It weighs up to 200 tons. 答案：B。解析：in fact 意为"事实上"，用于强调或纠正。此处确认事实用 in fact。 2. Olivia can't ______ life ______ her mobile phone. 答案：B。解析：imagine...without... 意为"无法想象没有…的生活"。without 是介词后接名词。 3. Jam was ______ when he didn't see any butterflies in the park. 答案：B。解析：Jam 是人，用 disappointed（感到失望的）。disappointing 修饰事物。 【拓展题】 1. ______ (没有) water, plants cannot survive. 答案：Without。解析：without 意为"没有"，介词后接名词 water。注意句首大写。 2. Imagine ______ (fly) like a bird in the sky! 答案：flying。解析：imagine doing sth. 固定搭配，imagine 后接动名词 flying。 3. Chen Wei was ______ (disappoint) because he lost the game. 答案：disappointed。解析：Chen Wei 是人，用 disappointed（感到失望的）。be disappointed 是固定搭配。 ▎考点八：be home to / a symbol of / thousands of / up to 【基础题】 1. Wuhan is ______ many famous universities. 答案：A。解析：be home to 是固定短语，意为"是…的所在地/故乡"。home to 不用冠词。 2. In Chinese culture, the lotus is ______ purity. 答案：B。解析：a symbol of 是固定短语，意为"…的象征"。symbol 前用 a，of 后接抽象名词。 3. There are ______ kinds of plants in the rainforest. 答案：B。解析：thousands of 是固定短语，意为"成千上万的"。thousand 前无具体数字时用复数+of。 【提升题】 1. Some bamboo can grow ______ 30 metres tall. 答案：A。解析：up to 意为"多达/接近"。up to 30 metres 意为"高达30米"。 2. The Arctic Ocean is ______ many sea animals like whales and seals. 答案：C。解析：be home to 是固定短语，意为"是…的栖息地"。home to 不用冠词。 3. Jinan is known as the city of springs. It is also ______ roses. 答案：B。解析：be home to 意为"是…的故乡/产地"。Jinan 以泉水闻名，也是玫瑰之乡。 【拓展题】 1. The forest is home to ______ (千) of birds and insects. 答案：thousands。解析：thousands of 是固定短语，意为"成千上万的"。thousand 用复数。 2. The redwood tree can live up ______ (to / for) 3,000 years. 答案：to。解析：up to 是固定短语，意为"多达/接近"。up to 3,000 years 意为"长达3000年"。 3. In China, the peony is a symbol ______ (of / for) wealth and honour. 答案：of。解析：a symbol of 是固定短语，意为"…的象征"。介词用 of。 ▎考点九：情态动词 can / could / be able to 【基础题】 1. Birds ______ fly because they have wings. 答案：A。解析：can 表现在能力，"鸟能飞"是客观事实。could 表过去能力或委婉请求。 2. When Chen Wei was five, he ______ ride a bike. 答案：B。解析：过去能力用 could。When he was five 是过去时间，用 could ride。 3. Olivia ______ swim very well. She won first prize. 答案：D。解析：can 和 is able to 都表现在能力，此处两者皆可。注意 be able to 可用于各种时态。 【提升题】 1. — Could you help me with this heavy box? — Yes, I ______. 答案：A。解析：Could you...? 表委婉请求，肯定回答用 can（不用 could）。Yes, I can. 2. When Jam was young, he ______ climb trees very fast. 答案：B。解析：过去能力用 could。When he was young 是过去时间状语。 3. Bees ______ communicate with each other by dancing. 答案：D。解析：can 和 are able to 都表示现在能力。蜜蜂能通过跳舞交流，两者皆可。 【拓展题】 1. Cheetahs ______ (can) run at 120 km/h. 答案：can。解析：can 表现在能力。猎豹能跑到每小时120公里，是客观事实。 2. When she was a child, Bella ______ (can) name every flower. 答案：could。解析：过去能力用 could。When she was a child 是过去时间。 3. With hard work, Zhou Kai will be ______ (able) to pass the exam. 答案：able。解析：be able to 可用于将来时，will be able to 意为"将能够"。注意 able 前加 be。 ▎考点十：综合交际与语篇运用 【基础题】 1. — What's amazing about the blue whale? — ______. 答案：A。解析：What's amazing about...? 询问"…有什么令人惊叹之处"，回答应说明具体特征。A 选项完整回答了蓝鲸的特点。 2. — Which do you think is the most beautiful flower, the rose, the peony or the lotus? — ______. 答案：B。解析：选择疑问句三者选一，直接回答选项之一即可。B 选项直接说 The peony（牡丹）。 3. — What can plants do for us? — ______. 答案：B。解析：What can...do? 询问能力/作用，回答应说明具体功能。B 选项"它们能产生氧气"正确。 【提升题】 1. — I think the cheetah is the fastest animal. — ______. But the peregrine falcon is faster in the air. 答案：B。解析：对方表达观点后用 That's true（没错）表示部分赞同，再用 But 转折补充。A 完全不同意语气太强。 2. — Can you tell me more about bamboo? — ______. What do you want to know? 答案：C。解析：Sure, feel free. 意为"当然，随便问"。feel free to do sth. 是固定短语。 3. — Why are bees so important? — ______ they help plants grow through pollination. 答案：B。解析：Why 提问原因必须用 Because 回答。so 表结果不能回答 Why。 【拓展题】 1. — What's amazing about redwood trees? — They can live up to 3,000 years. They are the ______ (old) living things on earth. 答案：oldest。解析：形容词最高级，old 的最高级为 the oldest。范围 on earth 暗示最高级。 2. — Can you imagine ______ (live) without trees? — No, I can't. 答案：living。解析：imagine doing sth. 固定搭配，imagine 后接动名词 living。 3. — ______ (事实上), bamboo is a type of grass, not a tree. — Really? 答案：In fact。解析：in fact 是固定短语，意为"事实上/实际上"。注意句首大写 In fact。 — 练习结束，祝学习进步！ — 第 页 学科网（北京）股份有限公司 $