译林版 8年级上册Unit 7 The natural world 单元语法专项训练
一、选出不同类的一项（5分）
( )1. A. forest B. mountain C. protect
( )2. A. bamboo B. pine C. energy
( )3. A. produce B. prevent C. nature
( )4. A. since B. while C. already
( )5. A. sunny B. wind C. rainy
二、单项选择题（共15分）
The workers ______ in the forest for five hours and they haven't finished yet.
A. work B. worked C. have worked D. have been working
—Do you know ______ we can protect wild animals
—By setting up more nature reserves.
A. how B. when C. where D. why
He said that trees ______ oxygen for us to breathe.
A. produce B. produces C. produced D. will produce
I wonder ______ the rainforest ______ covered 60% of the earth.
A. that; once B. if; once C. what; ever D. which; never
They ______ about the importance of saving water since the meeting began.
A. talk B. talked C. have talked D. have been talking
"Plants need sunlight to grow," the teacher said. The teacher said that plants ______ sunlight to grow.
A. need B. needs C. needed D. will need
Could you tell me ______ the next environmental protection activity will take place
A. that B. when C. which D. what
Scientists ______ that the polar bear population ______ smaller in the past decade.
find; becomes B. found; became
C. have found; has become D. have found; became
We ______ in this national park for two days and we'll stay for another three days.
A. are camping B. camped C. have camped D. have been camping
He asked me ______ I had ever seen a real panda in the wild.
A. that B. if C. what D. which
The reporter said that the river ______ seriously polluted since 2018.
A. is B. was C. has been D. had been
Do you know ______ the Amazon rainforest is located
A. when B. where C. that D. what
The farmer told us that he ______ trees on the hillside every spring for ten years.
A. plants B. planted C. has planted D. had been planting
We ______ to protect the environment since we were in primary school.
A. teach B. are taught C. have taught D. have been taught
"I am doing research on endangered species," the scientist said. The scientist said that he ______ research on endangered species.
A. is doing B. was doing C. does D. did
三、用括号里单词的正确形式填空（共20分）
The forest ______ (provide) shelter for animals for thousands of years.
Do you know if they ______ (hold) a tree-planting activity next month
He said that he ______ (join) the environmental club three years before.
They ______ (discuss) the problem of air pollution since 9 o'clock this morning.
Can you tell me ______ (whose) these environmental reports belong to
She asked how long we ______ (study) the climate change.
The teacher told us that the sun ______ (rise) in the east and sets in the west.
The volunteers ______ (clear) up the beach for over four hours.
"I will protect the wetland," he promised. He promised that he ______ (protect) the wetland.
I want to know ______ (when) the next wildlife protection lecture will start.
The students ______ (prepare) for the nature knowledge competition all week.
He asked me ______ (if) I had ever visited a nature reserve.
The guide said that the waterfall ______ (be) there for millions of years.
We ______ (learn) about the food chain since last term.
Do you know ______ (how) we can reduce plastic waste in our daily life
The scientist ______ (find) that the number of bees ______ (drop) by 30% so far.
She said she ______ (take) part in the river clean-up activity the next week.
The rain ______ (fall) for three days and it ______ (not stop) yet.
He wondered ______ (what) caused the forest fire last month.
The book says that water ______ (cover) about 71% of the earth's surface.
四、按要求改写句子（共20分）
He said, "The Amazon is the largest rainforest in the world."（改为间接引语）
He said that the Amazon ______ the largest rainforest in the world.
I want to know. Will they build a new nature reserve here （合并为宾语从句）
I want to know ______ they ______ build a new nature reserve here.
They have been protecting the ancient trees for ten years.（对划线部分提问）
______ ______ have they been protecting the ancient trees
"Plants can help fight against pollution," the expert said.（改为间接引语）
The expert said that plants ______ ______ against pollution.
Do you know Why do some animals hibernate in winter （合并为宾语从句）
Do you know ______ some animals ______ in winter
We have been studying the local ecosystem since last year.（改为一般疑问句）
______ you ______ studying the local ecosystem since last year
"I will plant 100 trees this year," Tom said.（改为间接引语）
Tom said that he ______ ______ 100 trees that year.
I don't know. How does the desert affect the climate （合并为宾语从句）
I don't know ______ the desert ______ the climate.
The villagers have been keeping the river clean for 15 years.（对划线部分提问）
______ ______ have the villagers been keeping the river clean
"We are doing a survey on wildlife," the students said.（改为间接引语）
The students said that they ______ ______ a survey on wildlife.
五、连词成句（共10分）
trees, for, humans, important, are, very, survival (.)
we, can, what, do, protect, to, the, rainforests ( )
since, has, the, been, lake, polluted, last, month (.)
animals, if, destroy, their, will, homes, we, die, they (.)
the, provides, with, nature, us, resources, necessary, living (.)
六、完形填空（共10小题，每小题2分，计20分）
Our planet's natural world is amazing. For thousands of years, humans 1 on nature for survival. We get food, water and energy from it. However, in recent decades, people 2 too much from nature without protecting it.
Scientists 3 that many forests 4 since the 1990s. They say that if we 5 more trees, the situation 6 worse. A report says that one million species 7 in danger of disappearing.
Many people are trying to protect nature now. They 8 in environmental organizations for years. They 9 people about the importance of protecting wild animals and plants. They believe that if we all work together, we 10 a better world for future generations.
( )1. A. depend B. depended C. have depended D. will depend
( )2. A. take B. took C. are taking D. have been taking
( )3. A. find B. found C. have found D. will find
( )4. A. disappear B. disappeared C. have disappeared D. will disappear
( )5. A. don't plant B. didn't plant C. won't plant D. aren't planting
( )6. A. get B. gets C. will get D. got
( )7. A. is B. are C. was D. were
( )8. A. work B. worked C. have worked D. will work
( )9. A. teach B. taught C. are teaching D. have been teaching
( )10. A. create B. created C. will create D. are creating
七、阅读理解（共10分）
Scientists have been studying the relationship between plants and animals for centuries. They have found that everything in nature is connected. For example, bees help plants reproduce by carrying pollen from one flower to another. In return, plants provide bees with nectar.
A recent study shows that since 2000, the number of bees has dropped by 30%. Scientists believe this is because humans have been using too many chemicals in farming. They say that if the number of bees continues to drop, many plants will stop growing. This will affect other animals that depend on those plants for food.
Many countries have started to protect bees. They have been planting more flowers in cities and reducing the use of harmful chemicals. Scientists hope that these actions will help bees survive. They say that if we protect bees, we will also protect many other species, including humans.
( )1. What have scientists been studying for centuries
A. The history of plants.
B. The relationship between plants and animals.
C. The way bees make honey.
D. The effect of chemicals on farming.
( )2. How do bees help plants
A. By eating their leaves. B. By carrying pollen.
C. By providing them with nectar. D. By protecting them from other animals.
( )3. What has happened to the number of bees since 2000
A. It has increased by 30%. B. It has dropped by 30%.
C. It has stayed the same. D. It has doubled.
( )4. Why do scientists think the number of bees has dropped
A. Because there are fewer flowers.
B. Because of climate change.
C. Because humans have been using too many chemicals.
D. Because other animals have been eating them.
( )5. What do scientists say will happen if we protect bees
A. We will get more honey.
B. We will have more flowers in cities.
C. We will reduce the use of chemicals.
D. We will protect many other species, including humans.
八、句子改错（20分）
Plants has been producing oxygen for millions of years. （ ）________
He said that he will join the environmental group. （ ）________
They have been live in this forest for five years. （ ）________
Do you know if the meeting start at 3 o'clock tomorrow （ ）________
The teacher told us that the earth was round. （ ）________
We have plant over 500 trees since last month. （ ）________
She asked me how long I have been studying biology. （ ）________
The rainforest is home to thousand of species. （ ）________
If we will not protect nature, many animals will die. （ ）________
He said that water covered 71% of the earth's surface. （ ）________
答案
一、1-5 CCCCB
二、单项选择题
D 2. A 3. A 4. B 5. D 6. A 7. B 8. C 9. D 10. B 11. D 12. B 13. D 14. D 15. B
三、用括号里单词的正确形式填空
has provided
will hold
had joined
have been discussing
whose
had been studying
rises
have been clearing
would protect
when
have been preparing
if
had been
have been learning
how
has found; has dropped
would take
has been falling; hasn't stopped
what
covers
四、按要求改写句子
is
if/whether; will
How long
could help fight
why; hibernate
Have; been
would plant
how; affects
How long
were doing
五、连词成句
Trees are very important for humans' survival.
What can we do to protect the rainforests
The lake has been polluted since last month.
If we destroy their homes, animals will die.
Nature provides us with necessary living resources.
六、完形填空
C 2. D 3. C 4. C 5. A 6. C 7. B 8. C 9. D 10. C
七、阅读理解
B 2. B 3. B 4. C 5. D
八、句子改错
has→have
will→would
live→living
start→will start
was→is
plant→planted
have→had
thousand→thousands
will not→do not
covered→covers
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