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8A U7 The natural world课时作业练习（三）
作业 7 Assessment & Further study（单元知识复习）
基础过关
一、根据句意及所给中文提示写出句中所缺单词。
1.John didn't sleep well last night because of his ______ neighbours.（吵闹的）
2.I strongly advise you to give up smoking. It does great ______ to your health.（伤害）
3.You should take some warm clothes because the ______ changes.（气候）
4.The hall in our school is big enough to ______ about 300 students.（容纳）
5.The typhoon passed quickly and didn't ______ too much trouble.（导致）
6.We should ______ to protect the wildlife in the wetlands.（行动）
7.The tour ______ a visit to the science museum.（包括）
8.As an African, Tom is a big fan of Chinese kung fu. ______, he is also crazy about Chinese culture.（因此）
9.The writer ______ many famous works in his forties.（创造）
10.Cathy enjoys ______ a problem by sharing it with her best friends.（解决）
二、用括号中所给单词的正确形式填空。
1.You need to explain your opinions quite ______ when having a debate. (clear)
2.______, some birds lost their living areas, so they had nowhere to live. (sad)
3.I will spend as much time as I have ______ my bad eating habits. (change)
4.My cousin would like to go outside to enjoy the ______ world at weekends. (nature)
5.Linda knows the ______ of English, so she really likes learning English. (important)
6.A lot of ______ go there to watch the sunrise every day. (tour)
7.We are thinking about what we can do ______ the students in the poor villages. (help)
8.He says he will call us as soon as he ______. (return)
9.You can watch many different types of birds ______ in a nature reserve. (easy)
10.(2025·江苏无锡锡山区期末) His careless driving ______ to a serious traffic accident the other day. (lead)
综合运用
三、单项选择。
( )1. (2025·江苏镇江句容期末) A new study shows that learning a second language can ______ an increase in intelligence.
A. lead to
B. think of
C. put in
D. look for
( )2. (2025·江苏镇江调研) He checked his homework carefully ______ make mistakes.
A. in order that
B. in order not to
C. so that
D. in order to not
( )3. There will be ______ space for giant pandas, because their living areas are becoming farmlands.
A. little and little
B. less and less
C. little and less
D. less and little
( )4. It's reported that the Chinese government provides some farmers in poor areas ______ free technology.
A. with
B. for
C. to
D. by
( )5. (2025·江苏扬州广陵区期末)—Can you tell me the main structure of the sentence “The wind is blowing hard.”
—Let me see. It's “______”.
A. S+V
B. S+V+O
C. S+V+P
D. S+V+DO+OC
( )6. Forty per cent of the students ______ going to have lunch in that restaurant, but there is little food .
A. is; left
B. is; leaving
C. are; left
D. are; leaving
( )7. Freezing rain (冻雨) may cause dangerous conditions on highways. It can lead to ______ people losing control of their cars.
A. thousands of
B. two thousands of
C. thousand of
D. two thousands
( )8. —Oh, Mary's not here these days. Is she ill
—. Her mother told me that she was in hospital.
A. I am afraid so
B. I hope not
C. I hope so
D. I am afraid not
四、根据中文意思完成句子。
1.太少的休息经常导致患病。Too little rest often ______.
2.他的父母一年到头忙碌着。His parents are busy ______.
3.女孩占整个班级的百分之四十。Girls ______ the whole class.
4.父母总想让自己的孩子免受伤害。Parents always want to ______ harm.
5.这个袋子太重了，我提不动。(so...that) ______
能力提升
五、根据短文内容，在文中空白处填入 1 个适当的单词，或用括号内所给单词的正确形式填空。
We are beautiful red - crowned cranes. We have red caps on top of our heads. You may 1 ______ (think) the caps are our feathers. In fact, they are our skin. We are heavy. 2 ______ adult red - crowned crane can weigh up to 11 kilograms. We are good at dancing. We think we are the most beautiful 3 ______ (dance) of all the birds. We are also good at 4 ______ (sing). We sing loudly and beautifully. We are good 5 ______ flying as well. We fly to North - east China 6 ______ spring comes. We give 7 ______ (birthday) to baby cranes there. We like to live together in the wetlands in China and some other places. We feed on worms and small fish. We like to live in long grass. Water and grass 8 ______ (be) important to us. But these years, life is harder sometimes. We are one of the most endangered 9 ______ (bird) in the world now. People keep taking up our living space to make farms and build houses.
Now we don't have enough space to live in. And we don't have enough food 10 ______ (feed) our babies because people fish and hunt too much.作业7 Assessment & Further study（单元知识复习）答案及解析
基础过关
一、根据句意及所给中文提示写出句中所缺单词
noisy解析：“吵闹的”对应的英文是“noisy”，修饰名词“neighbours”，符合语境。
harm解析：“伤害”此处为名词，“do harm to”是固定短语，意为“对……有害”，故填“harm”。
climate解析：“气候”的英文是“climate”，是不可数名词，符合句意。
hold解析：“容纳”对应的英文是“hold”，“be + adj. + enough to do sth.”结构中用动词原形，故填“hold”。
cause解析：“导致”的英文是“cause”，助动词“didn't”后接动词原形，故填“cause”。
act解析：“行动”的英文是“act”，情态动词“should”后接动词原形，故填“act”。
includes解析：“包括”的英文是“include”，句子描述一般情况，主语“the tour”是第三人称单数，故填“includes”。
Therefore解析：“因此”的英文是“therefore”，位于句首首字母大写，故填“Therefore”。
created解析：“创造”的英文是“create”，“in his forties”表示过去的时间，用一般过去时，故填“created”。
solving解析：“解决”的英文是“solve”，“enjoy doing sth.”是固定搭配，故填“solving”。
二、用括号中所给单词的正确形式填空
clearly解析：修饰动词“explain”需用副词，“clear”的副词形式是“clearly”。
Sadly解析：此处需用副词修饰整个句子，“sad”的副词形式是“sadly”，句首首字母大写，故填“Sadly”。
changing解析：“spend time (in) doing sth.”是固定搭配，意为“花费时间做某事”，故填“changing”。
natural解析：修饰名词“world”需用形容词，“nature”的形容词形式是“natural”。
importance解析：定冠词“the”后接名词，“important”的名词形式是“importance”。
tourists解析：“a lot of”后接可数名词复数，“tour”对应的表示人的名词是“tourist”，复数形式为“tourists”。
to help解析：此处用动词不定式表目的，意为“为了帮助贫困村庄的学生”，故填“to help”。
returns解析：“as soon as”引导的时间状语从句遵循“主将从现”原则，主语“he”是第三人称单数，故填“returns”。
easily解析：修饰动词“watch”需用副词，“easy”的副词形式是“easily”。
led解析：“the other day”表示过去的时间，用一般过去时，“lead”的过去式是“led”。
综合运用
三、单项选择
A解析：句意：一项新研究表明，学习第二语言能______智力的提升。“lead to”意为“导致”；“think of”意为“想起”；“put in”意为“投入”；“look for”意为“寻找”。结合语境，选A。
B解析：句意：他仔细检查作业______犯错。“in order not to do sth.”意为“为了不做某事”，是固定搭配；“in order that”和“so that”后接从句；“in order to not”表达错误。故选B。
B解析：“比较级+and+比较级”表示“越来越……”，“space”是不可数名词，用“less”修饰，故“less and less”（越来越少）符合语境，选B。
A解析：“provide sb. with sth.”是固定搭配，意为“给某人提供某物”，故选A。
A解析：“The wind is blowing hard.”中，“the wind”是主语（S），“is blowing”是谓语（V），句子结构为“S+V”，故选A。
C解析：“forty per cent of the students”中“students”是可数名词复数，谓语动词用“are”；“food”与“leave”是被动关系，用过去分词“left”作后置定语。故选C。
A解析：“thousand”前有具体数字时用单数，后接“of”时用复数“thousands”，“thousands of”意为“成千上万的”，故选A。
A解析：句意：——玛丽这些天不在这儿，她生病了吗？——______。她妈妈告诉我她住院了。“I am afraid so”意为“恐怕是这样”；“I hope not”意为“我希望不是”；“I hope so”意为“我希望是这样”；“I am afraid not”意为“恐怕不是”。结合语境，选A。
四、根据中文意思完成句子
leads to illness解析：“导致”用“lead to”，“患病”用“illness”，主语“too little rest”是不可数名词，谓语动词用第三人称单数“leads”。
all year round解析：“一年到头”的固定表达是“all year round”。
make up forty per cent of解析：“占……比例”用“make up...of”，“百分之四十”是“forty per cent”。
keep their children from解析：“使……免受……”用“keep...from...”，“他们的孩子”是“their children”。
The bag is so heavy that I can't carry it.解析：“so...that...”表示“如此……以至于……”，“太重”是“so heavy”，“提不动”是“can't carry it”。
能力提升
五、根据短文内容填空
think解析：情态动词“may”后接动词原形，故填“think”。
An解析：“adult red - crowned crane”是可数名词单数，且“adult”以元音音素开头，用不定冠词“an”，句首首字母大写。
dancers解析：“the most beautiful”后接名词，“dance”对应的表示“舞者”的名词是“dancer”，结合语境用复数“dancers”。
singing解析：“be good at doing sth.”是固定搭配，故填“singing”。
at解析：“be good at”是固定短语，意为“擅长……”，故填“at”。
when解析：此处表示“当春天来临时”，用“when”引导时间状语从句。
birth解析：“give birth to”是固定短语，意为“生育”，故填“birth”。
are解析：主语“water and grass”是复数，be动词用“are”。
birds解析：“one of + 可数名词复数”表示“……之一”，故填“birds”。
to feed解析：此处用动词不定式表目的，意为“没有足够的食物来喂养幼鸟”，故填“to feed”。

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