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Unit 4 Amazing Plants and Animals
课时 4 Section B (1a-1f) 分层作业
核心知识速记 01 基础达标 02 能力提升 03 拓展培优 0 4 思维进阶
词汇
1.connect /kə'nekt/v. 关联；连接 2.without /wɪ'ðaʊt/prep. 没
有；缺乏
connected /kə'nektɪd/adj. 连接的；相关的
3.imagine /ɪ'mædʒɪn/v. 想象；猜想 4.honey /'hʌni/n. 蜂蜜；（爱
称）亲爱的
5.disappointed /ˌdɪsə'pɔɪntɪd/adj. 失望的；沮丧的 6.connection /kə'nekʃn/n. 联系；连接
7.pollination /ˌpɒlə'neɪʃn/n. 授粉 8.pollen /'pɒlən/n. 花粉
9.action /'ækʃn/n. 行动；行为 10.per cent /pə'sent/ (=
percent)n. 百分之……
adj. & adv. 每一百中
11.planet /'plænɪt/n. 行星 12.store /stɔː(r)/v. 贮
存；存储n. 百货商店；商店
13.honeycomb /'hʌnikəʊm/n. 蜂巢 14.communicate
/kə'mjuːnɪkeɪt/v. 交流；沟通
15.ecosystem /'iːkəʊsɪstəm/n. 生态系统 16.protect /prə'tekt/v. 保护；防护
句型
描述特征 :Bees are one of the most important animals on this planet.（蜜蜂是地球上最重要的动物之一 ）
假设情境:Imagine you go to the supermarket in your area, but there are almost no fruits...
（假设你去所在区域的超市，但几乎没有水果…… ）
W ithout their work , about 80 per cent of the plants in the world cannot grow.
（没有它们的工作，世界上约 80% 的植物无法生长 ）
动作描述:As they fly from one flower to another, they take pollen with them.
（当它们从一朵花飞到另一朵花时，会携带花粉 ）
It uses a dance to tell the others where and how far away the food is.
（它用舞蹈告诉同伴食物的位置和距离 ）
作用表达:Bees play an important part in the ecosystem of our planet.
（蜜蜂在地球生态系统中起重要作用 ）一、单词默写。
1.________________/kə'nekt/v. 关联；连接 2.________________ /wɪ'ðaʊt/prep.
没有；缺乏
________________ /kə'nektɪd/adj. 连接的；相关的
3.________________/ɪ'mædʒɪn/v. 想象；猜想 4.______________ /'hʌni/n. 蜂蜜；
（爱称）亲爱的
5.________________ /ˌdɪsə'pɔɪntɪd/adj. 失望的；沮丧的 6.________________/kə'nekʃn/n. 联系；连接
7.________________/ˌpɒlə'neɪʃn/n. 授粉 8.________________/'pɒlən/n.
花粉
9.________________/'ækʃn/n. 行动；行为 10.________________ /pə'sent/ (=
percent)
n. 百分之……adj. & adv. 每一百中
11.________________/'plænɪt/n. 行星 12.______________/stɔː(r)/v.
贮存；存储
n. 百货商店；商店
13.________________/'hʌnikəʊm/n. 蜂巢 14.________________
/kə'mjuːnɪkeɪt/v. 交流；沟通
15.________________/'iːkəʊsɪstəm/n. 生态系统 16.________________/prə'tekt/v. 保
护；防护
二、词组默写。
1.在此刻__________________________________ 2.互相，彼此_________________________________
3.最好的例子之一__________________________ 4.从一朵花飞到另一朵花_______________________
5.带上花粉________________________________ 6.实际上_____________________________________
7.没有他们的工作__________________________ 8.80%的植物_________________________________
9.出于这个原因 ___________________________ 10.最有趣的动物之一__________________________
11.例如___________________________________ 12.努力工作__________________________________
13.为了；以便_____________________________ 14.与…联系__________________________________
15.参与某事 _______________________________ 16.…的数目__________________________________
17.与…… 相连；与…… 有关联__________________________________
三、根据要求完成句子
1.Bees ______ ______ ______ ______ ______ in pollination, which helps many plants grow. （在…… 中起作
用）
2.______ ______, we can’t finish the project on time without their support. （事实上）
3.Birds ______ ______ ______ ______ ______ to find food and build new homes every spring. （从一朵花飞到
另一朵花）4.Pandas and bamboo ______ closely ______ ______ each other in the ecosystem. （与…… 相连）
5.______ ______ ______ ______ ____ students in our class like playing basketball after school. （…… 的 80%
6.Many animals use sounds or body language to ______ ______ their partners. （与…… 交流）
四 、选词填空
阅读下面短文，根据短文内容从方框中选出恰当的单词或短语填空，使语意通顺完整。
interestingtocommunicatenumberimportantamazinghard-workingroletakewithout
Bees: Nature's Little Helpers
Bees are 1.______ insects. From early morning till late evening, they fly around to collect nectar and pollen,
never stopping to rest. They have a necessary2.______ in the ecosystem(生态系统). Every time they fly from
flower to flower, they 3.______ pollen on their bodies, and when they land on another flower, this pollen helps the
plant produce seeds and fruit. 4.______ bees, many of the fruits and vegetables we eat every day, like apples and
tomatoes, would not exist.
Bees are among the 5.______ creatures on Earth. They live in large groups called colonies, where each bee has
its own job. Some bees build the hive, some take care of the baby bees, and others collect food. They even make
honeycombs 6.______ store the sweet honey they produce. What's more, a bee can 7.______ with other bees in a
special way—when it finds a good place with lots of flowers, it does a little dance to tell the others where the food
is.
However, in recent years, the 8.______ of bees has been decreasing. This is because their homes are being
destroyed, and harmful chemicals are being used in fields. It's 9.______ to protect these little creatures. Not only
do they help plants grow, but they also give us delicious honey. Bees are truly 10.______ friends of humans, and
we must do our best to keep them safe.
五、完型填空。
A Day in the Life of a Zoo Keeper
Working as a zoo keeper is both tiring and rewarding. Every morning, I arrive at the zoo before the sun rises. My
first job is to check on all the animals to make sure they are 1 and healthy. I start with the pandas, who are always
hungry. They love eating bamboo, so I prepare a large amount of it 2 their breakfast.
Next, I move to the bird area. The colorful parrots often 3 to me loudly as I walk by. They are smart creatures
and can even learn to 4 simple words. I fill their water bowls and clean their cages to keep them 5.In the afternoon, I help feed the lions. They are strong and powerful, but they are also 6 when they are full. I have
to be careful when giving them meat, always keeping a safe distance. 7, the giraffes are much calmer. They stretch
their long necks to 8 leaves from the tall trees in their enclosure.
Some days, school groups visit the zoo. I enjoy talking to the children about the animals. I tell them how each
species is 9 to the others in the ecosystem. It’s important for them to learn that we must 10 animals and their homes.
By the end of the day, I’m always tired, but seeing the animals happy makes it all worth it.
1.A. happy B. angry C. sad D. lazy
2.A. with B. for C. from D. about
3.A. sing B. shout C. cry D. whisper
4.A. speak B. tell C. say D. talk
5.A. dirty B. busy C. clean D. quiet
6.A. dangerous B. friendly C. scary D. noisy
7.A. However B. Also C. So D. Because
8.A. pick B. make C. buy D. sell
9.A. connected B. different C. same D. strange
10.A. harm B. protect C. kill D. catch
六、阅读理解
A
The Amazing Journey of Arctic Terns
Arctic terns are small birds with a big adventure. Every year, they travel from the Arctic to the Antarctic and
back—this is the longest migration of any animal on Earth. The round trip can be over 70,000 kilometers!
Why do they make such a long journey? In summer, the Arctic is full of daylight, and there are plenty of insects
for them to eat. They lay their eggs there. When winter comes, the Arctic gets dark and cold, so the terns fly south
to the Antarctic, where it is summer and food is still easy to find.
The journey is not easy. They must fly over oceans and deserts, facing strong winds and hungry predators. But
Arctic terns are smart. They follow the sun and stars to find their way. They also fly in groups to stay safe.
Scientists are amazed by these birds. Their bodies are built for long flights—they have strong wings and light
bones. Even young terns can make the journey without their parents guiding them. This amazing ability has helped
them survive for millions of years.
阅读理解题
1.How long is the round-trip migration of Arctic terns?
A. Over 7,000 kilometers. B. Over 70,000 kilometers.
C. Over 700,000 kilometers. D. Over 17,000 kilometers.
2.The underlined word “predators” in Paragraph 3 means ______ in Chinese.
A. 伙伴 B. 天敌 C. 同类
D. 向导
3.Why do Arctic terns fly to the Arctic in summer?A. To avoid the hot weather. B. To find dark places to rest.
C. To lay eggs and find food. D. To learn to fly long distances.
4.How do Arctic terns find their way during the journey?
A. By following other birds’ sounds. B. By using the sun and stars.
C. By remembering the mountains. D. By smelling the ocean winds.
5.What can we infer from the passage?
A. Arctic terns are the largest birds in the world.B. Young Arctic terns need their parents to guide them.
C. Arctic terns’ bodies are well-suited for long flights.
D. The journey from the Arctic to the Antarctic is getting shorter.
B
How Animal Migration Helps Ecosystems
Many animals move from one place to another at certain times of the year—this is called migration. Migration is
not just a journey for the animals; it plays a vital role in keeping ecosystems healthy.
For example, in Africa, millions of wildebeests migrate across the plains. As they move, they eat old grass, which
allows new grass to grow. Their droppings also fertilize the soil. When predators like lions hunt the wildebeests,
they keep the herd’s numbers balanced.
Birds that migrate help spread seeds. As they eat fruits, the seeds pass through their bodies and are dropped in
new areas. This helps plants grow in different places, creating more homes for other animals. Even insects like
butterflies migrate to carry pollen, which helps flowers reproduce.
However, migration is becoming harder for many animals. Climate change is altering weather patterns, and
human buildings block their paths. Protecting migration routes is crucial to save both the animals and the
ecosystems they support.
1.What is migration according to the passage?
A. Animals’ daily activities in their home.
B. Animals’ movement between places at certain times.
C. Animals’ fight against predators.
D. Animals’ way of communicating with each other.
2.The underlined word “fertilize” in Paragraph 2 means ______ in Chinese.
A. 污染 B. 破坏 C. 肥沃
D. 占用
3.Why is migration important for ecosystems?
A. It helps animals find better homes. B. It stops predators from growing too fast.
C. It balances nature in many ways. D. It allows humans to study animal behavior.
4.How do migrating birds help plants?
A. They eat harmful insects on plants. B. They carry seeds to new areas.
C. They build nests in tall trees. D. They drink water from plant leaves.
5.What can we learn from the last paragraph?
A. Human activities make migration easier. B. Climate change has no effect on migration.C. Protecting migration routes is necessary. D. Most animals have stopped migrating.
