2026年新课程课堂同步练习册九年级英语下册外研版第30页答案
(
A
)2.—The toy truck
belong to Jane's little brother. He was the only little kid in the picnic.
—Alright. Let's give it to them.

A.must
B.should
C.can't

答案

2.A

解析

【分析】首先通读对话理解语境,第一句给出推测的关键依据:“他是野餐里唯一的小孩”,说明玩具卡车的归属者是这个唯一的小孩,因此需要选择表肯定推测的情态动词。回忆情态动词表推测的用法:must用于肯定句表“一定”的推测;should表“应该”;can't用于否定句表“不可能”的推测,结合语境判断即可。
【解析】根据对话中“He was the only little kid in the picnic(他是野餐里唯一的小孩)”这一关键信息,可知玩具卡车的归属者是这个唯一的小孩,属于肯定的推测。分析选项:A选项must表肯定推测“一定”,符合语境;B选项should表“应该”,不符合推测的语气;C选项can't表否定推测“不可能”,与语境矛盾。因此正确答案为A。
【答案】A
【知识点】情态动词表推测;英语单项选择
【点评】本题考查情态动词表推测的基础用法,解题核心是抓住语境中的推测依据,判断推测的肯定语气,属于英语单项选择中的基础题型,难度较低。
【难度系数】0.7
(
B
)3.—What should I do before my final exam?
—Relax yourself and have a good sleep.
, believe yourself.

A.So far
B.Above all
C.In fact

答案

3.B

解析

【分析】
首先理解对话语境:问句询问期末考试前该做的事,答语先提到放松、睡好,后续强调“______,相信自己”,需选择符合逻辑的短语。逐一分析选项含义,结合语境判断最合适的表达。
【解析】
对话翻译:“我期末考试前该做什么?”“放松自己,睡个好觉。最重要的是,相信自己。”
选项分析:A. so far意为“到目前为止”,不符合语境;B. above all意为“首先,最重要的是”,用于强调关键内容,符合此处逻辑;C. in fact意为“事实上”,不符合语境。因此选B。
【答案】
B
【知识点】
短语辨析;情景交际
【点评】
本题考查英语常用短语在情景对话中的运用,需结合语境理解短语含义,侧重基础短语的掌握,难度适中。
【难度系数】
0.7
(
C
)4.—Must I finish reading the book today?
—No, you
if you have something else to do.

A.mustn't
B.couldn't
C.don't have to

答案

4.C

解析

【分析】这道题考查情态动词must的一般疑问句的否定回答规则。首先,must开头的一般疑问句,否定回答不能用mustn't(mustn't表示“禁止、不准”,不符合语境),正确的否定表达是“needn't”或“don't have to”,意为“不必”。接下来分析各选项含义:A选项mustn't表禁止,B选项couldn't表“不能”(多用于过去能力或委婉请求),C选项don't have to表“不必”,符合否定回答的用法,据此可得出答案。
【解析】对于“Must I...?”的一般疑问句,否定回答需用“don't have to”或“needn't”,不能用mustn't(表禁止)。逐一分析选项:A.mustn't意为“禁止”,不符合语境;B.couldn't意为“不能”,多用于过去或委婉语气,不适合此处;C.don't have to意为“不必”,符合题意,故选C。
【答案】C
【知识点】情态动词的用法
【点评】本题考查情态动词must的否定回答,属于基础知识点,需牢记must疑问句的答语规则,难度较低。
【难度系数】0.7
(
B
)5.The boy is only one year old. You
leave him alone.

A.needn't
B.mustn't
C.have to

答案

5.B

解析

【分析】首先理解句子语境:这个男孩只有一岁,因此绝对不能把他单独留下。需要辨析三个情态动词的含义:A选项needn't意为“不必”,B选项mustn't意为“禁止、绝对不允许”,C选项have to意为“不得不”。结合语境,一岁的孩子单独留是不被允许的,需选择表禁止的情态动词。
【解析】先翻译句子:这个男孩只有一岁,你________把他单独留下。逐一分析选项:A. needn't(不必)不符合语境;B. mustn't(禁止,绝对不能)符合“一岁孩子不能单独留”的语境;C. have to(不得不)不符合语义逻辑。因此选B。
【答案】B
【知识点】情态动词辨析
【点评】本题考查情态动词的词义辨析,需结合句子语境判断合适的表达,属于基础题型,难度较低。
【难度系数】0.7
Ⅱ. 从括号中选出恰当的词语填空。
1. John
may
(may/must) come to see us tonight, but he isn't very sure yet.
2. They will
be able to
(be able to/can) do well in the exam.
3. —May I take this book out? —No, you
can't
(can't/may not).
4. —Must I do my homework at once? —No, you
needn't
(mustn't/needn't).
5. They had to walk here,
didn't
(didn't/hadn't) they?

答案

1. may 2. be able to 3. can't 4. needn't 5. didn't

解析

【分析】
本题考查情态动词的用法及反义疑问句的规则,需结合语境和语法知识逐一分析:
1. 第一题:后半句“他还不是很确定”表不确定的推测,需选表“可能”的情态动词;
2. 第二题:will后接动词原形,情态动词can不能与will连用,需选可用于将来时的短语;
3. 第三题:“May I...?”的否定回答有固定习惯用法,需区分can't与may not的语义;
4. 第四题:“Must I...?”的否定回答有固定搭配,需区分needn't与mustn't的含义;
5. 第五题:反义疑问句中,陈述部分为had to(过去式),疑问部分需借助对应助动词。
【解析】
1. 第一题:由“isn't very sure yet”可知是不确定的推测,may表“可能”,符合语境;must表“一定”,语气过于肯定,故填may。
2. 第二题:will是助动词,后接动词原形,can为情态动词,不能与will连用;be able to可用于各种时态,此处用于一般将来时,故填be able to。
3. 第三题:“May I...?”的否定回答习惯用can't表“不可以”,may not侧重“可能不”,不符合语境,故填can't。
4. 第四题:“Must I...?”的否定回答用needn't表“不必”,mustn't表“禁止”,不符合语境,故填needn't。
5. 第五题:反义疑问句中,陈述部分谓语是过去式的had to,疑问部分需借助助动词did,故填didn't。
【答案】
1. may 2. be able to 3. can't 4. needn't 5. didn't
【知识点】
情态动词用法、反义疑问句构成
【点评】
本题为英语基础语法题,聚焦情态动词的语义区别、时态搭配及反义疑问句的助动词选择,是初中英语的核心考点,需准确记忆各知识点的规则。
【难度系数】
0.6
Ⅲ. 根据汉语意思完成句子。
1. 这个孩子太累了,他很快睡着了。
The child was very tired and he
fell asleep
soon.
2. 徐先生动身前往北京了。
Mr Xu
set off
for Beijing.
3. 我对攀岩非常感兴趣。
I'm very interested in
rock climbing
.
4. 昨天晚上你什么时候离开的?
When did you
go off
last night?
5. 他总是喜欢一下子吃完盘子里的肉。
He always likes finishing eating the meat on the plate
in one go
.

答案

1. fell asleep 2. set off 3. rock climbing 4. go off 5. in one go

解析

【分析】
本题为根据汉语意思补全英语句子的题型,核心是匹配对应英语固定表达,同时需结合句子时态、固定搭配要求调整形式。需逐一对应汉语提示,回忆相关英语短语,注意动词时态、介词搭配等细节。
【解析】
1. 表示“睡着”的固定短语为fall asleep,句子是一般过去时,fall的过去式是fell,故填fell asleep;
2. 表示“动身前往”的固定短语为set off,其过去式仍为set,符合过去动作的语境,故填set off;
3. “攀岩”的固定表达为rock climbing,be interested in后接名词/动名词短语,故填rock climbing;
4. 表示“离开”的固定短语为go off,句中有助动词did,其后动词用原形,故填go off;
5. 表示“一下子”的固定短语为in one go,符合语境,故填in one go。
【答案】
1. fell asleep 2. set off 3. rock climbing 4. go off 5. in one go
【知识点】
固定短语运用,一般过去时,介词搭配
【点评】
本题为基础汉译英补全题,聚焦常用英语固定短语的识记与运用,涉及动词短语、介词短语及名词短语的搭配,难度较低,主要考查学生对基础短语的积累和时态、搭配的基本运用能力。
【难度系数】
0.3
Ⅳ. 阅读理解。
We all know that exercise is good for our health. But some kinds of exercise may be better than others. Running, for example, may help to protect against heart disease and other health problems. Running may also help you live longer.
Recently, researchers studied more than 55,000 adults. About a quarter of the adults have a good habit of running. The study found these runners were much healthier than non-runners. In fact, the runners lived, on average(平均), three years longer than the non-runners.
Running may be good exercise, but it can be difficult on the body. Here are commonly shared ideas among fitness experts(健身专家) to lower the risk of injury(受伤) for people who are new to running.
Take it easy
Do not run too much, too soon or too fast. Most people get running injuries when they push themselves too hard. The body needs time to get used to increases in distance(距离) or speed.
Get good running shoes
There is no single best shoe for every runner. You should find the shoe that offers the best fit and support for your feet. More importantly, you should have a new pair of shoes every 500 to 800 kilometres.
Take good notes
Take time after each run to write down notes about what you did and how you felt. Look for things that happen again and again. For example, you may find that your knees hurt when you run sometimes. But perhaps you feel great when you have a rest between running days. These notes will help you make the best plan for running.
根据短文内容,选择最佳选项。
(
C
)1. In the first paragraph, the writer wants to tell us
.
A. good health comes from running
B. running is the best exercise
C. not all exercise is equally(同样地) good
(
A
)2. In the second paragraph, we know
.
A. a good habit of running may help you live longer
B. the number of non-runners was getting smaller
C. three quarters of 55,000 adults were new to running
(
B
)3. Increases in distance or speed depend on
.
A. what the fitness experts say
B. how your body feels
C. whether you have the best shoes
(
A
)4. The purpose of taking notes is to
.
A. help you find the way of running that fits you
B. help you do some research on exercise
C. take a rest between running days
(
C
)5. The passage is written to
.
A. provide information for the researchers to work better
B. warn the non-runners of the dangers in running
C. help runners to exercise in a scientific way

答案

1.C 2.A 3.B 4.A 5.C

解析

【分析】
本题为英语阅读理解选择题,共5道小题,主要考查对文章细节的理解和主旨的把握。解题思路:先通读全文掌握大意,再针对每道题的题干关键词,回到原文对应段落定位信息,对比选项与原文内容,排除错误选项,选出最佳答案。
【解析】
1. 第1题:第一段提到“some kinds of exercise may be better than others”,说明并非所有锻炼效果相同,对应选项C;A选项“健康来自跑步”、B选项“跑步是最好的锻炼”均与原文不符,故选C。
2. 第2题:第二段最后指出“runners lived, on average, three years longer than non-runners”,对应选项A“跑步的好习惯可能帮你更长寿”;B、C选项原文未提及,故选A。
3. 第3题:“Take it easy”部分强调身体需要时间适应距离或速度的增加,说明要根据身体感觉调整,对应选项B;A、C选项与原文无关,故选B。
4. 第4题:记笔记部分提到“These notes will help you make the best plan for running”,即帮你找到适合自己的跑步方式,对应选项A;B、C选项不符合原文,故选A。
5. 第5题:文章前半部分讲跑步益处,后半部分给新手跑步的科学建议,写作目的是帮助跑步者科学锻炼,对应选项C;A、B选项与主旨不符,故选C。
【答案】
1.C 2.A 3.B 4.A 5.C
【知识点】
英语阅读理解、细节理解、主旨大意
【点评】
本题为贴近生活的英语阅读题,侧重考查细节定位和主旨归纳能力,难度适中,学生只要认真阅读原文、精准定位关键词即可解答,适合巩固英语阅读基础。
【难度系数】
0.7