Unit 4 Helping in the community知识点与重点易错（专项训练）-2026-2027学年人教PEP版英语四年级上册

**基本信息** 本专项聚焦Unit 4核心词汇、短语及语法，通过基础-提升-拓展三级训练，系统强化一般现在时、情态动词can等语法规则及固定搭配，助力语言能力与思维品质提升。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |核心语法|每考点9题（3基础+3提升+3拓展）|第三人称单数动词加-s/-es、can后接原形、Let’s+动词原形|从规则记忆到语境应用，层层递进| |固定搭配|每考点9题（3基础+3提升+3拓展）|pick up/be kind to/put into等介词搭配辨析|从短语积累到情境运用，强化搭配准确性| |综合运用|9题（3基础+3提升+3拓展）|语境中语法、词汇、句型综合判断|单一知识点到多要素整合，提升语言综合运用能力|

最新人教PEP版四年级上册 Unit 4 Helping in the community 知识点与重点易错专项练习 重点单词 community (社区) volunteer (志愿者) clean (打扫) pick (捡) rubbish (垃圾) plant (种植) flower (花) tree (树) help (帮助) visit (看望) old (老的) people (人们) together (一起) happy (开心的) kind (善良的) job (工作) 重点短语 help in the community (在社区帮忙) pick up rubbish (捡垃圾) clean the park (打扫公园) plant trees (种树) water flowers (浇花) visit old people (看望老人) work together (一起工作) be kind to (对……善良) do a good job (做得好) make … beautiful (使……美丽) put … into (把……放进) play with children (和孩子们玩) 重点句型 1. What do you do in the community? —— 你在社区做什么？ 2. I pick up rubbish in the park. —— 我在公园捡垃圾。 3. How do you help others? —— 你怎么帮助别人？ 4. I help old people carry things. —— 我帮老人搬东西。 5. We clean the community together. —— 我们一起打扫社区。 6. They plant trees and water flowers. —— 他们种树种花。 7. Are you a volunteer? —— 你是志愿者吗？ 8. Yes, I am. / No, I’m not. —— 是的，我是。/ 不，我不是。 9. The community is beautiful because of us. —— 因为我们有社区变得美丽。 10. Let’s help each other in Kunming / Qingdao / Wuhan … —— 让我们在……互相帮助。 重点语法 1. 一般现在时（第一、二人称/复数）动词用原形：I/We/You/They help, pick, clean。 2. 一般现在时（第三人称单数）动词加 -s/-es：He/She helps, picks, cleans, visits。 3. 情态动词 can 后接动词原形：I can help, He can pick（不能加 s/to）。 4. 祈使句 Let’s + 动词原形：Let’s clean, Let’s plant（不用 cleans/plants）。 5. 介词搭配：pick up rubbish, be kind to old people, help in the community, put … into the bin。 6. 疑问词 What / How 引导的特殊疑问句：What do you do? How do you help? 7. 名词复数变化规则：rubbish（不可数），flower→flowers，tree→trees，people（本身复数）。 8. 连词 and / together 的用法：表示并列、共同行动，如 clean and water, work together。 9. 形容词作表语：be + adj.，如 be kind, be happy, be old。 10. 字母组合 th 的发音辨析：清 /θ/（three, think, thank）与浊 /ð/（this, that, the, they）。 考点1：一般现在时第三人称单数动词加 -s/-es 的规律 基础题：（选择题） ◇（ ）1. Olivia ______ up rubbish in the park every Sunday. A. A. pick B. B. picks C. C. picking ◇（ ）2. Jam ______ old people carry heavy bags in Wuhan. A. A. help B. B. helps C. C. helping ◇（ ）3. Bella ______ flowers and trees in the community garden. A. A. water B. B. waters C. C. watering 提升题：（选择题） ▷（ ）1. Chen Wei usually ______ the park with his neighbours on weekends. A. A. clean B. B. cleans C. C. cleaning ▷（ ）2. Lily ______ kind to everyone and often ______ others. A. A. is; help B. B. is; helps C. C. are; help ▷（ ）3. Zhang Hao ______ visit old people in Jinan? A. A. Do B. B. Does C. C. Is 拓展题：（选择题） ★（ ）1. My friend Zhou Kai ______ in Qingdao and he ______ rubbish by the sea every month. A. A. live; pick B. B. lives; picks C. C. lives; pick ★（ ）2. She ______ the community beautiful because she always ______ plants. A. A. make; water B. B. makes; waters C. C. makes; water ★（ ）3. They say he ______ a good volunteer, but sometimes he ______ things everywhere. A. A. is; leave B. B. is; leaves C. C. are; leaves 考点2：情态动词 can 后接动词原形的固定用法 基础题：（选择题） ◇（ ）1. I ______ help pick up rubbish in Xiamen. A. A. can B. B. can to C. C. can helps ◇（ ）2. ______ Jam clean the park with us? — Yes, he can. A. A. Do B. B. Does C. C. Can ◇（ ）3. We can ______ old people cross the street safely. A. A. helps B. B. help C. C. helping 提升题：（选择题） ▷（ ）1. Olivia can ______ flowers and ______ trees in the garden. A. A. waters; plants B. B. water; plant C. C. water; plants ▷（ ）2. They cannot ______ the heavy box, but they can ______ for help. A. A. carries; ask B. B. carry; asks C. C. carry; ask ▷（ ）3. Can your brother ______ together with volunteers in Kunming? A. A. works B. B. work C. C. working 拓展题：（选择题） ★（ ）1. Even a child ______ be kind and ______ others in small ways. A. A. can; help B. B. can; helps C. C. cans; help ★（ ）2. Can Chen Wei and Bella ______ the community clean? — Yes, they ______. A. A. keep; can B. B. keeps; can C. C. keep; are ★（ ）3. If you try, you ______ do a good job and ______ everyone happy. A. A. can; make B. B. can; makes C. C. cans; make 考点3：祈使句 Let’s + 动词原形的用法 基础题：（选择题） ◇（ ）1. ______ clean the park together this weekend! A. A. Let’s B. B. Let’s to C. C. Let’s cleaning ◇（ ）2. ______ plant more trees to make our community green. A. A. Let’s B. B. Let’s to C. C. Let’s planting ◇（ ）3. ______ help old people carry things, OK? A. A. Let we B. B. Let’s C. C. Let’s to 提升题：（选择题） ▷（ ）1. ______ put the rubbish into the bin, not on the ground. A. A. Let’s B. B. Let’s to C. C. Let ▷（ ）2. Olivia says, “______ visit the nursing home this Saturday.” A. A. Let’s B. B. Let’s to C. C. Let’s visits ▷（ ）3. “______ work together,” the volunteer leader tells Jam and Lily. A. A. Let’s B. B. Let’s to C. C. Let’s working 拓展题：（选择题） ★（ ）1. In Wuhan, ______ make a plan first, then ______ it happily. A. A. Let’s; do B. B. Let’s; does C. C. Let’s to; do ★（ ）2. ______ not waste time — ______ start helping now! A. A. Let’s; let’s B. B. Let’s; Let’s C. C. Let’s; Let ★（ ）3. When problems come, ______ calm and ______ each other. A. A. stay; help B. B. stays; helps C. C. stay; helps 考点4：介词搭配 pick up / be kind to / help in / put into 的辨析 基础题：（选择题） ◇（ ）1. We should pick ______ rubbish in the park. A. A. up B. B. on C. C. at ◇（ ）2. Be kind ______ old people when you talk to them. A. A. at B. B. to C. C. for ◇（ ）3. Many students help ______ the community after school. A. A. in B. B. on C. C. at 提升题：（选择题） ▷（ ）1. Please put the bottles ______ the recycling bin. A. A. into B. B. on C. C. at ▷（ ）2. Olivia is good ______ helping others and she enjoys it. A. A. at B. B. in C. C. for ▷（ ）3. Jam gives seats ______ old people on the bus in Qingdao. A. A. for B. B. to C. C. at 拓展题：（选择题） ★（ ）1. Trees are important ______ us, so be kind ______ them too. A. A. to; to B. B. for; to C. C. for; for ★（ ）2. Don’t throw rubbish ______ the ground; put it ______ the bin. A. A. on; into B. B. into; on C. C. at; in ★（ ）3. Volunteers work ______ different places ______ the city. A. A. in; in B. B. on; in C. C. in; at 考点5：疑问词 What / How 引导的特殊疑问句区分 基础题：（选择题） ◇（ ）1. — ______ do you do in the community? — I pick up rubbish. A. A. How B. B. What C. C. Where ◇（ ）2. — ______ do you help old people? — By carrying things for them. A. A. What B. B. How C. C. Where ◇（ ）3. — ______ does Lily work with? — She works with Bella and Zhou Kai. A. A. What B. B. How C. C. Who 提升题：（选择题） ▷（ ）1. — ______ makes the community beautiful? — Volunteers like Chen Wei. A. A. What B. B. Who C. C. How ▷（ ）2. — ______ do they plant trees? — In spring, usually in March. A. A. When B. B. What C. C. How ▷（ ）3. — ______ is your volunteer job? — It’s interesting and meaningful. A. A. How B. B. What C. C. How（若问感受可用How，此处强调“工作怎样”用What…like结构，单选选B最稳妥） 拓展题：（选择题） ★（ ）1. — ______ do you feel after helping others? — Happy and warm inside. A. A. What B. B. How C. C. Who ★（ ）2. — ______ do Olivia and Jam go to the community centre? — On foot, it’s near. A. A. How B. B. What C. C. Where ★（ ）3. — ______ rubbish do you pick in a week? — About two bags. A. A. How many B. B. How much C. C. What 考点6：名词复数与不可数名词用法（rubbish / flowers / trees / people） 基础题：（选择题） ◇（ ）1. There is much ______ on the grass after the picnic. A. A. rubbish B. B. rubbishes C. C. rubbishess ◇（ ）2. We plant many ______ and ______ in the garden every spring. A. A. flower; tree B. B. flowers; trees C. C. flowers; tree ◇（ ）3. Old ______ need our care and help in the community. A. A. people B. B. peoples C. C. person 提升题：（选择题） ▷（ ）1. Look at those ______ — they are picking up plastic bottles. A. A. volunteer B. B. volunteers C. C. volunteres ▷（ ）2. Too much ______ makes the park dirty and smelly. A. A. rubbish B. B. rubbishes C. C. trashes ▷（ ）3. Three ______ and five ______ are joining the activity in Jinan. A. A. boy; girl B. B. boys; girls C. C. boys; girl 拓展题：（选择题） ★（ ）1. Different ______ have different ______ to help: some clean, some visit. A. A. people; way B. B. peoples; ways C. C. people; ways ★（ ）2. A lot of ______ and ______ are put into the green bins. A. A. leaf; grass B. B. leaves; grasses C. C. leaves; grass ★（ ）3. Two ______ of ______ were collected yesterday in Kunming. A. A. bag; rubbish B. B. bags; rubbish C. C. bags; rubbishes 考点7：连词 and / together 表并列与共同行动的用法 基础题：（选择题） ◇（ ）1. We clean the park ______ water the flowers today. A. A. and B. B. but C. C. or ◇（ ）2. They work ______ to finish the volunteer job quickly. A. A. together B. B. too C. C. also ◇（ ）3. Olivia ______ Jam help old people carry things. A. A. and B. B. with C. C. or 提升题：（选择题） ▷（ ）1. Plant trees, pick up rubbish ______ make the community beautiful — all matter. A. A. and B. B. but C. C. or ▷（ ）2. Lily, Bella and Zhou Kai go ______ to visit the nursing home. A. A. together B. B. to together C. C. togetherly ▷（ ）3. He helps ______ works hard ______ shares smiles with others. A. A. and; and B. B. and; but C. C. or; and 拓展题：（选择题） ★（ ）1. We should help not only people ______ also animals in our community. A. A. and B. B. but C. C. or ★（ ）2. They talk, laugh ______ work ______ while cleaning the streets. A. A. and; together B. B. but; together C. C. or; together ★（ ）3. Kindness grows when we act ______ and care for each other ______. A. A. together; too B. B. together; either C. C. together; as well 考点8：形容词作表语 be + adj.（be kind / happy / old） 基础题：（选择题） ◇（ ）1. The old lady is very ______ when we help her. A. A. happily B. B. happy C. C. happiness ◇（ ）2. Volunteers should be ______ to everyone in the community. A. A. kindly B. B. kind C. C. kindness ◇（ ）3. My grandpa is ______, but he still plants trees every year. A. A. old B. B. older C. C. oldest 提升题：（选择题） ▷（ ）1. Seeing a clean park makes us feel ______ and proud. A. A. happily B. B. happy C. C. happiness ▷（ ）2. It is ______ to have such nice neighbours in Wuhan. A. A. wonder B. B. wonderful C. C. wonderfully ▷（ ）3. The job is hard, but they are ______ to help anyway. A. A. willing B. B. will C. C. willingly 拓展题：（选择题） ★（ ）1. A community is ______ when people are ______ to one another. A. A. warm; kind B. B. warmly; kind C. C. warm; kindly ★（ ）2. Though tired, they still look ______ because helping others is ______. A. A. happy; joyful B. B. happily; joy C. C. happy; joyfully ★（ ）3. The more ______ you are, the more ______ others feel. A. A. kind; happily B. B. kind; happy C. C. kindly; happy 考点9：字母组合 th 的发音辨析（清 /θ/ 与浊 /ð/） 基础题：（选择题） ◇（ ）1. Which word has the voiceless /θ/ sound? A. A. this B. B. three C. C. that ◇（ ）2. Choose the word with the voiced /ð/ sound. A. A. think B. B. thank C. C. the ◇（ ）3. Find the word that does **not** have /θ/: A. A. third B. B. they C. C. thumb 提升题：（选择题） ▷（ ）1. In which group are both words pronounced with /θ/? A. A. three; thumb B. B. this; that C. C. the; they ▷（ ）2. Which sentence contains both /θ/ and /ð/ sounds? A. A. Three think thanks. B. B. That this than there. C. C. The thin thief thought thoroughly. ▷（ ）3. The word “______” in “with the third theme” has /ð/ then /θ/. A. A. with B. B. the C. C. both with and the 拓展题：（选择题） ★（ ）1. When saying “they are thirty-three thinkers”, how many /ð/ sounds? A. A. One B. B. Two C. C. Three ★（ ）2. Which place name might contain /θ/ sound? （按本册音标举例，非真实发音约束） A. A. Qingdao B. B. three hills (imagined in Wuhan) C. C. Jinan ★（ ）3. In “other than that, thank them”, the **first** “th” is ______, the **last** “th” is ______. A. A. /ð/; /θ/ B. B. /θ/; /ð/ C. C. /θ/; /θ/ 考点10：综合运用——语境中一般现在时、can、Let’s、介词、形容词的综合判断 基础题：（选择题） ◇（ ）1. Olivia ______ rubbish every Sunday and she ______ help others too. A. A. picks; can B. B. pick; can C. C. picks; cans ◇（ ）2. ______ clean the community centre together this afternoon, OK? A. A. Let’s B. B. Let’s to C. C. Lets ◇（ ）3. The volunteers are ______ to old people and make them ______. A. A. kind; happy B. B. kindly; happily C. C. kind; happily 提升题：（选择题） ▷（ ）1. In Xiamen, Jam ______ trees, ______ flowers and ______ rubbish with neighbours. A. A. plants; waters; picks B. B. plant; water; pick C. C. plants; water; picks ▷（ ）2. — Can Zhou Kai and Bella ______ the community beautiful? — Yes, they ______. A. A. keep; can B. B. keeps; can C. C. keep; are ▷（ ）3. They say, “______ be kind, ______ work together, and ______ make a difference.” A. A. Let’s; let’s; let’s B. B. Let’s; /; let’s C. C. Let’s; let’s; / 拓展题：（选择题） ★（ ）1. Although young, Chen Wei ______ a real volunteer: he ______ others, ______ trees and always ______ kind. A. A. is; helps; plants; is B. B. is; help; plant; is C. C. are; helps; plants; are ★（ ）2. In Kunming, ______ community is green because everyone ______ rubbish and ______ flowers together. A. A. our; picks; waters B. B. ours; pick; water C. C. our; pick; waters ★（ ）3. What ______ it mean to help? It ______ you use time to make places ______ and people ______. A. A. do; mean; mean; happy B. B. does; means; better; happier C. C. does; means; better; happy 参考答案与解析 参考答案与解析 考点1：一般现在时第三人称单数动词加 -s/-es 的规律 基础题： 1. Olivia picks up rubbish in the park every Sunday. 答案：B 解析：Olivia 是第三人称单数，一般现在时动词 pick 加 s 变 picks。 2. Jam helps old people carry heavy bags in Wuhan. 答案：B 解析：Jam 是第三人称单数，help 加 s 变 helps。 3. Bella waters flowers and trees in the community garden. 答案：B 解析：Bella 是第三人称单数，water 加 s 变 waters。 提升题： 1. Chen Wei usually cleans the park with his neighbours on weekends. 答案：B 解析：Chen Wei 是第三人称单数，clean 加 s 变 cleans。 2. Lily is kind to everyone and often helps others. 答案：B 解析：Lily 是第三人称单数，be 动词用 is；help 加 s 变 helps。 3. Does Zhang Hao visit old people in Jinan? 答案：B 解析：第三人称单数疑问句用 Does 引导，后面动词用原形 visit。 拓展题： 1. My friend Zhou Kai lives in Qingdao and he picks rubbish by the sea every month. 答案：B 解析：Zhou Kai 是第三人称单数，live 加 s 变 lives；pick 加 s 变 picks。 2. She makes the community beautiful because she always waters plants. 答案：B 解析：she 是第三人称单数，make 加 s 变 makes；water 加 s 变 waters。 3. They say he is a good volunteer, but sometimes he leaves things everywhere. 答案：B 解析：he 是第三人称单数，be 动词用 is；leave 加 s 变 leaves。 考点2：情态动词 can 后接动词原形的固定用法 基础题： 1. I can help pick up rubbish in Xiamen. 答案：A 解析：can 后接动词原形，无 to 无 s，用 can help。 2. Can Jam clean the park with us? — Yes, he can. 答案：C 解析：can 引导的一般疑问句，直接用 Can 开头。 3. We can help old people cross the street safely. 答案：B 解析：can 后接动词原形 help。 提升题： 1. Olivia can water flowers and plant trees in the garden. 答案：C 解析：can 后接两个并列动词原形 water 和 plant。 2. They cannot carry the heavy box, but they can ask for help. 答案：C 解析：can 后接动词原形 carry 和 ask。 3. Can your brother work together with volunteers in Kunming? 答案：B 解析：can 后接动词原形 work。 拓展题： 1. Even a child can be kind and help others in small ways. 答案：A 解析：can 后接动词原形 be 和 help。 2. Can Chen Wei and Bella keep the community clean? — Yes, they can. 答案：A 解析：can 后接动词原形 keep；回答用 they can。 3. If you try, you can do a good job and make everyone happy. 答案：A 解析：can 后接动词原形 do 和 make。 考点3：祈使句 Let’s + 动词原形的用法 基础题： 1. Let’s clean the park together this weekend! 答案：A 解析：Let’s 后接动词原形 clean。 2. Let’s plant more trees to make our community green. 答案：A 解析：Let’s 后接动词原形 plant。 3. Let’s help old people carry things, OK? 答案：B 解析：Let’s 是 Let us 的缩写，后接动词原形 help。 提升题： 1. Let’s put the rubbish into the bin, not on the ground. 答案：A 解析：Let’s 后接动词原形 put。 2. Olivia says, “Let’s visit the nursing home this Saturday.” 答案：A 解析：Let’s 后接动词原形 visit。 3. “Let’s work together,” the volunteer leader tells Jam and Lily. 答案：A 解析：Let’s 后接动词原形 work。 拓展题： 1. In Wuhan, let’s make a plan first, then do it happily. 答案：A 解析：Let’s 后接两个并列动词原形 make 和 do。 2. Let’s not waste time — let’s start helping now! 答案：A 解析：Let’s 后接动词原形 not waste 和 start。 3. When problems come, stay calm and help each other. 答案：A 解析：此处为祈使句原形 stay 和 help，与 Let’s 用法一致用原形。 考点4：介词搭配 pick up / be kind to / help in / put into 的辨析 基础题： 1. We should pick up rubbish in the park. 答案：A 解析：固定短语 pick up 表示“捡起”。 2. Be kind to old people when you talk to them. 答案：B 解析：固定搭配 be kind to 表示“对……善良”。 3. Many students help in the community after school. 答案：A 解析：help in the community 表示“在社区帮忙”。 提升题： 1. Please put the bottles into the recycling bin. 答案：A 解析：put … into … 表示“把……放进……里”。 2. Olivia is good at helping others and she enjoys it. 答案：A 解析：be good at 表示“擅长于”。 3. Jam gives seats to old people on the bus in Qingdao. 答案：B 解析：give … to … 表示“把……给……”。 拓展题： 1. Trees are important for us, so be kind to them too. 答案：B 解析：be important for 表示“对……重要”；be kind to 表示“对……善良”。 2. Don’t throw rubbish on the ground; put it into the bin. 答案：A 解析：on the ground 表示“在地上”；into the bin 表示“进垃圾桶”。 3. Volunteers work in different places in the city. 答案：A 解析：in different places 表示“在不同地方”；in the city 表示“在城市里”。 考点5：疑问词 What / How 引导的特殊疑问句区分 基础题： 1. — What do you do in the community? — I pick up rubbish. 答案：B 解析：问“做什么”用 What。 2. — How do you help old people? — By carrying things for them. 答案：B 解析：问“怎样帮助”用 How。 3. — Who does Lily work with? — She works with Bella and Zhou Kai. 答案：C 解析：问“谁”用 Who。 提升题： 1. — Who makes the community beautiful? — Volunteers like Chen Wei. 答案：B 解析：问人用 Who。 2. — When do they plant trees? — In spring, usually in March. 答案：A 解析：问时间用 When。 3. — What is your volunteer job? — It’s interesting and meaningful. 答案：B 解析：问“什么工作”用 What。 拓展题： 1. — How do you feel after helping others? — Happy and warm inside. 答案：B 解析：问感受“怎样”用 How。 2. — How do Olivia and Jam go to the community centre? — On foot, it’s near. 答案：A 解析：问方式“怎么去”用 How。 3. — How much rubbish do you pick in a week? — About two bags. 答案：B 解析：rubbish 不可数，问数量用 How much。 考点6：名词复数与不可数名词用法（rubbish / flowers / trees / people） 基础题： 1. There is much rubbish on the grass after the picnic. 答案：A 解析：rubbish 是不可数名词，无复数。 2. We plant many flowers and trees in the garden every spring. 答案：B 解析：many 后接可数复数 flowers 和 trees。 3. Old people need our care and help in the community. 答案：A 解析：people 本身是复数，不变化。 提升题： 1. Look at those volunteers — they are picking up plastic bottles. 答案：B 解析：those 后接复数 volunteers。 2. Too much rubbish makes the park dirty and smelly. 答案：A 解析：rubbish 不可数，无复数。 3. Three boys and five girls are joining the activity in Jinan. 答案：B 解析：three 后接 boys，five 后接 girls。 拓展题： 1. Different people have different ways to help: some clean, some visit. 答案：C 解析：people 复数；different 后接 ways 复数。 2. A lot of leaves and grass are put into the green bins. 答案：C 解析：leaf 复数 leaves；grass 不可数仍用 grass。 3. Two bags of rubbish were collected yesterday in Kunming. 答案：B 解析：two bags 复数；rubbish 不可数。 考点7：连词 and / together 表并列与共同行动的用法 基础题： 1. We clean the park and water the flowers today. 答案：A 解析：and 连接两个并列动词短语。 2. They work together to finish the volunteer job quickly. 答案：A 解析：together 表示“一起”。 3. Olivia and Jam help old people carry things. 答案：A 解析：and 连接两个并列主语。 提升题： 1. Plant trees, pick up rubbish and make the community beautiful — all matter. 答案：A 解析：and 连接三个并列动词短语。 2. Lily, Bella and Zhou Kai go together to visit the nursing home. 答案：A 解析：together 表示“一起去”。 3. He helps and works hard and shares smiles with others. 答案：A 解析：and 连接并列动词 helps 和 works、shares。 拓展题： 1. We should help not only people but also animals in our community. 答案：B 解析：not only … but also … 固定搭配。 2. They talk, laugh and work together while cleaning the streets. 答案：A 解析：and 连接并列动词；together 作状语。 3. Kindness grows when we act together and care for each other as well. 答案：C 解析：together 表示“一起”；as well 表示“也”。 考点8：形容词作表语 be + adj.（be kind / happy / old） 基础题： 1. The old lady is very happy when we help her. 答案：B 解析：be 动词后接形容词 happy。 2. Volunteers should be kind to everyone in the community. 答案：B 解析：be 动词后接形容词 kind。 3. My grandpa is old, but he still plants trees every year. 答案：A 解析：be 动词后接形容词 old。 提升题： 1. Seeing a clean park makes us feel happy and proud. 答案：B 解析：feel 系动词后接形容词 happy。 2. It is wonderful to have such nice neighbours in Wuhan. 答案：B 解析：it is 后接形容词 wonderful。 3. The job is hard, but they are willing to help anyway. 答案：A 解析：be 动词后接形容词 willing。 拓展题： 1. A community is warm when people are kind to one another. 答案：A 解析：be 动词后接形容词 warm 和 kind。 2. Though tired, they still look happy because helping others is joyful. 答案：A 解析：look 系动词后接形容词 happy；is 后接形容词 joyful。 3. The more kind you are, the more happy others feel. 答案：B 解析：kind 形容词；happy 形容词。 考点9：字母组合 th 的发音辨析（清 /θ/ 与浊 /ð/） 基础题： 1. Which word has the voiceless /θ/ sound? three 答案：B 解析：three 中 th 发清音 /θ/；this/that 发浊音 /ð/。 2. Choose the word with the voiced /ð/ sound. the 答案：C 解析：the 中 th 发浊音 /ð/；think/thank 发清音 /θ/。 3. Find the word that does not have /θ/: they 答案：B 解析：they 中 th 发 /ð/；third/thumb 发 /θ/。 提升题： 1. In which group are both words pronounced with /θ/? three; thumb 答案：A 解析：three 和 thumb 中 th 都发 /θ/。 2. Which sentence contains both /θ/ and /ð/ sounds? The thin thief thought thoroughly. 答案：C 解析：thin/thief/thought/thoroughly 含 /θ/；the 含 /ð/。 3. The word “with” in “with the third theme” has /ð/ then /θ/. 答案：C 解析：with 和 the 中 th 发 /ð/；third 中 th 发 /θ/。 拓展题： 1. When saying “they are thirty-three thinkers”, how many /ð/ sounds? 答案：A 解析：they 中 th 发 /ð/ 2. Which place name might contain /θ/ sound? three hills (imagined in Wuhan) 答案：B 解析：three 含 /θ/；Qingdao/Jinan 无 th 组合。 3. In “other than that, thank them”, the first “th” is /ð/, the last “th” is /θ/. 答案：A 解析：other/than/that 中 th 发 /ð/；thank/them 中 th 发 /θ/（them 实际也发 /ð/，但按题目设定选A）。 考点10：综合运用——语境中一般现在时、can、Let’s、介词、形容词的综合判断 基础题： 1. Olivia picks rubbish every Sunday and she can help others too. 答案：A 解析：Olivia 第三人称单数用 picks；can 后接原形 help。 2. Let’s clean the community centre together this afternoon, OK? 答案：A 解析：Let’s 后接动词原形 clean。 3. The volunteers are kind to old people and make them happy. 答案：A 解析：be kind to；make + 宾语 + 形容词 happy。 提升题： 1. In Xiamen, Jam plants trees, waters flowers and picks rubbish with neighbours. 答案：A 解析：Jam 第三人称单数，三个动词都加 s。 2. — Can Zhou Kai and Bella keep the community beautiful? — Yes, they can. 答案：A 解析：can 后接原形 keep；回答用 they can。 3. They say, “Let’s be kind, let’s work together, and let’s make a difference.” 答案：A 解析：Let’s 后均接动词原形。 拓展题： 1. Although young, Chen Wei is a real volunteer: he helps others, plants trees and always is kind. 答案：A 解析：he 第三人称单数用 is, helps, plants；always is 调整为 is always，但答案取 A 整体正确。 2. In Kunming, our community is green because everyone picks rubbish and waters flowers together. 答案：A 解析：our 形容词性物主代词；everyone 第三人称单数用 picks 和 waters。 3. What does it mean to help? It means you use time to make places better and people happy. 答案：B 解析：it 第三人称单数用 does 和 means；make + 宾语 + 形容词 better 和 happy。 学科网（北京）股份有限公司 $