2026年优翼学练优八年级英语上册人教版武汉专版第50页答案
Ⅳ.完形填空。
Mark's class planted fruits and vegetables in the school's garden. Mark liked watering them and he especially liked watching the
grow. The school used the fruits and vegetables in the school dining hall. Most students in his class felt it was
to eat something planted by themselves.
Every morning, Mark went to check the plants first. One morning, he saw something
. He hurried into his classroom. "Mr James!" he shouted to his teacher. "The beans are covered with a kind of insect! I think they're
them!" Hearing what he said, Mr James just smiled. He showed Mark a small
. "Don't worry, Mark. I think I know what the problem is. There's something in this box that might be
for this."
After listening to the teacher, students stood still and they still didn't know what to do next. Then, Mr James led his class out to the
. "Insects called aphids(蚜虫) are eating our beans," he said. "We can use what we know about food chains(食物链) to
this problem." With those words in his mouth, Mr James walked to the plants. He carefully
the small box, and some ladybugs(瓢虫) flew out!
"Ladybugs?" asked Mark. "
can they help? They are insects too."
"This problem can be solved with
," Mr James said. "It's true that aphids like to eat the beans,
ladybugs like to eat the aphids. Let's watch what will happen over the next few
."
For the next few weeks, Mark watched as the aphids
. One morning, he bent down to study the beans again. He saw that the beans looked healthy and
. There were no more aphids on them either!

(
B
)1. A. trees B. plants C. fruits D. vegetables
(
A
)2. A. amazing B. relaxing C. dangerous D. difficult
(
C
)3. A. boring B. interesting C. surprising D. disappointing
(
D
)4. A. protecting B. shooting C. watching D. eating
(
A
)5. A. box B. bottle C. cup D. bag
(
B
)6. A. harmless B. helpful C. safe D. bad
(
D
)7. A. park B. classroom C. office D. garden
(
A
)8. A. solve B. cause C. keep D. describe
(
C
)9. A. closed B. touched C. opened D. moved
(
B
)10. A. What B. How C. Who D. Where
(
A
)11. A. science B. art C. power D. money
(
A
)12. A. but B. so C. or D. if
(
C
)13. A. hours B. days C. weeks D. months
(
C
)14. A. walked B. came C. disappeared D. rested
(
C
)15. A. weak B. light C. strong D. colourful

答案

1-5 B A C D A 6-10 B D A C B
11-15 A A C C C

解析

【分析】
本题是一篇关于校园种植遇到虫害后用食物链知识解决的完形填空。解题思路为:先通读全文把握主旨大意,再结合上下文语境、词汇含义及固定搭配逐一分析每个空格,选出符合文意的选项。
【解析】
1. 前文提到种了水果和蔬菜,此处指看“植物”生长,选B。
2. 自己种植的食物吃起来是“令人惊奇的”,选A。
3. 看到豆子上有昆虫是“令人惊讶的”事,选C。
4. 昆虫在“吃”豆子,选D。
5. 后文提到“small box”,此处选A。
6. 瓢虫对解决问题是“有帮助的”,选B。
7. 回到种植的“花园”,选D。
8. “solve the problem”是固定搭配,意为解决问题,选A。
9. 打开盒子放出瓢虫,选C。
10. 询问瓢虫“如何”帮忙,选B。
11. 用科学方法解决,选A。
12. 前后句是转折关系,用but,选A。
13. 后文提到“the next few weeks”,选C。
14. 蚜虫“消失”了,选C。
15. 豆子健康“强壮”,选C。
【答案】
1-5 B A C D A;6-10 B D A C B;11-15 A A C C C
【知识点】
完形填空、词汇辨析、语境理解
【点评】
本文贴近学生校园生活,涉及食物链知识,考查学生对上下文的理解及词汇运用能力,是一篇典型的语境类完形填空。
【难度系数】
0.6