九上 Unit 4 核心知识点练习卷
I.选词填空
（2023·山东德州·统考）阅读下面的短文，根据短文内容，从下面方框内所给11个词中选择10个意义相符的词，必要时进行词形变化，填入空白处，每空一词。
help,  it, with, lucky, one, piece,  large, if, but, for, when
In the summer of 1996, some strange-looking fossilized bones (骨骼化石) were dug up by a man in a dried-up lake. He was a farmer in the eastern part of China, who wondered: Could these be the remains (遗迹) of an ancient dragon?
Not quite. Finally the study showed us that the bones actually belonged to a meat-eating dinosaur (恐龙), and     1    name was Sinosauropteryx prima (中华龙鸟). It was     2    than the size of a common chicken which lived about 120 million years ago. It was the     3    time to find fossils of dinosaurs in Liaoning, and it was the earliest one with feathers (羽毛).
So, scientists said that Sinosauropteryx prima might have had tiny feathers, which is similar to the chicken. They have something in common!weigh怎么读
It may sound crazy     4    in fact not. Most scientists think today’s birds and dinosaurs are relatives.
However, not everyone believes it. Many scientists wonder     5    some dinosaurs had feathers. Some bird scientists suggest that the feather-like structures (结构) may be     6    of scales (鳞片). Whatever they are, they are not the right size and shape     7  flying.
It’s not easy to prove this because feathers are so weak that they usually rot (腐烂) away without a trace (踪迹).     8    , the fossils showed a lot of details (细节). For the study of the relationship between birds and dinosaurs, these details are very     9    .
Yet still nobody knows     10    and why feathers appeared on the earth. Scientists hope to solve the puzzle (谜题) by studying the area where the fossils were found. “These beds date to a time when flowering plants and binds appeared,” says a professor. “The discovery of this area is just as important as going to Mars.”
II. 单选选择。
11.（2023·全国·九年级专题练习）______ , I found the job boring, but soon I got used to it.
A．To start with    B．First of all
C．Without doubt    D．After all
12.（2023·全国·九年级专题练习）—Our parents often ________ us not to talk with strangers on the Internet.
—That’s true. As teenagers, we should learn to protect ourselves.
A．warn    B．invite    C．control    D．promise
13.（2023·全国·九年级专题练习）—I don’t care what people think.
—Well, you______________. Some opinions are worth weighing.
A．might    B．should    C．could    D．would
14.—______ does your pet dog weigh?
—About 8 kilograms.
A．What    B．How    C．How many    D．How much
15.（2023·安徽合肥·统考二模）—What do you think of the plan to visit Mount Huangshan?
—The plan seems so ________ that we all agree on it.
A．perfect    B．regretful    C．boring    D．similar
16.（2023·云南昆明·模拟预测）You can realize your dream ________ you stick to it and work hard for it.
A．as long as    B．as true as    C．as well as    D．as good as
17.（2022·黑龙江绥化·统考）There are ________ paintings on exhibition (展览). ________ works were created by young artists.
A．two hundred; Two hundreds
B．two hundreds; Hundreds of
C．hundreds of; Two hundred
18.（2022·黑龙江绥化·统考）Chinese astronauts ________ as heroes. We all look up to them.
A．are regarded    B．regard    C．regarded
19.（2022·贵州黔西·统考）My grandfather became a member of the Party in the end.
A．joined    B．made    C．had    D．finished
20.（2022·黑龙江·统考）All the students have gone to the science museum ________ Tom. Because he is ill.
A．except    B．besides    C．expect
21.（2022·辽宁抚顺·统考）It’s said that the kite _______ in China over 2000 years ago.
A．invents    B．invented    C．was invented    D．is invented
22. My parents won’t allow me to do things I like ________ I finish my homework.
A．if    B．but    C．because    D．unless
23.（2023·黑龙江·统考）— What can we do for the left-home children ________ need help?
— We could help them with their study online on weekends.
A．which    B．who    C．whom
24. Eric tried to _______ why he was late for work, but his manager didn’t believe him.
A．warn    B．explain    C．imagine    D．mean
III. 语篇填空小题练习。
25. With the rapid development of science, many kinds of ________ (robot) will appear in our life.
26. Li Ming has shown a special interest in ________ (paint) since he was a child.
27. We ________ (cancel) the sports meeting at last because it rained heavily yesterday.
28. The guide in the museum was so knowledgeable that he ________ (describe) the history of this painting in
detail to us.
29. My classmates are going to ________ Great Wall next Sunday. （盲填）
30. Reading builds a ________ (connect) between our life and the unknown world.