2026年通成学典课时作业本八年级英语上册外研版第70页答案
[课堂再现]
1. I got on the train to go home.
2. I went to the supermarket to buy some apples.
3. In order to read, I have to go to a quiet place.
4. My brother practises playing the piano in order to improve his skills.
5. Linda started work early so as to finish it by five.
[规则探究]
1. 从以上例句可以看出,to do不定式除了可作宾语补足语之外,还可以作
目的状语
,表示行为动作的目的。
2. 在作目的状语时,不定式既可放在
句首
,也可放在句尾。
3. 通常情况下,to do不定式、in order to和so as to之间
可以
(可以/不可以)相互转换。

答案

1. 目的状语 2. 句首 3. 可以

解析

【分析】首先观察题目给出的例句,分析其中表目的的结构:1. 例句中“to do”结构均体现动作的目的,结合语法知识判断其功能;2. 对比例句中表目的结构的位置,明确其放置位置的规律;3. 分析“to do”“in order to”“so as to”在表目的时的功能,判断是否可转换。
【解析】1. 观察例句,如“I got on the train to go home”中“to go home”说明上车的目的,因此to do不定式可作目的状语;2. 例句3“In order to read, I have to go to a quiet place”中表目的的结构位于句首,其余例句的表目的结构在句尾,故作目的状语时可放在句首;3. 表目的时,to do不定式、in order to和so as to的语义和功能相近,通常可以相互转换。
【答案】1. 目的状语 2. 句首 3. 可以
【知识点】动词不定式作目的状语;目的状语的位置;in order to与so as to的用法
【点评】本题通过例句探究不定式作目的状语的核心规则,考查基础语法应用,需结合例句归纳规律,难度不大。
【难度系数】0.6
一、用括号中所给词的适当形式填空。
1. [2025 西藏]
To remember
(remember) the sweet time of school life, students like taking photos with classmates.
2. [2026 三明期末] We started our journey early
to avoid
(avoid) the bad traffic.
3. In order
not to miss
(not miss) the first bus, Steve got up very early in the morning.
4. (动物保护) He does everything he can
to protect
(protect) animals.

答案

1. To remember 2. to avoid 3. not to miss 4. to protect

解析

【分析】
这几道题均考查动词不定式表目的的用法,解题思路为:先判断句子需要表目的的成分,再结合动词不定式的规则填空,注意第3题是固定结构的不定式否定形式。具体来看,各题均需用不定式体现动作的目的,仅第3题涉及不定式的否定式搭配。
【解析】
1. 此处需表达“为了记住校园甜蜜时光”的目的,动词不定式可作目的状语,故填To remember;
2. 早出发的目的是避开拥堵,用动词不定式作目的状语,故填to avoid;
3. 固定结构in order not to do sth.表示“为了不做某事”,表目的,故填not to miss;
4. 做所有事的目的是保护动物,用动词不定式作目的状语,故填to protect。
【答案】
1. To remember 2. to avoid 3. not to miss 4. to protect
【知识点】
动词不定式作目的状语;in order not to固定搭配
【点评】
本题聚焦初中英语核心基础考点,考查不定式表目的的基本用法及固定否定搭配,题型常规,需学生熟练掌握不定式的功能与结构。
【难度系数】
0.6
二、句型转换。
1. He gets up so early that he can catch the train.(改为同义句)
He gets up early
to
catch
the train.
2. Mingming listens to English songs to improve his spoken English.(改为同义句)
To
improve
his spoken English, Mingming listens to English songs.
3. They built nature reserves. They wanted to protect wild pandas.(合并为一句)
They built nature reserves
in order to/so as
to
protect wild pandas.
4. I go to school. I learn new things.(合并为一句)
I go to school to learn new things.

答案

1. to catch 2. To improve 3. in order to/so as to 4. I go to school to learn new things.

解析

【分析】
这几道题是英语句型转换题,核心考查目的状语的不同表达形式。解题时需掌握:1. so...that引导的结果状语从句可转换为“形容词/副词+to do sth”的简单句;2. 不定式(to do)可作目的状语,放句首时直接用To do;3. 合并表目的的简单句时,可用in order to/so as to;4. 两个简单句合并表目的时,用不定式连接。
【解析】
1. 原句是so...that引导的结果状语从句,从句表目的,转换为简单句用“副词+to do”结构,故填to catch;
2. 原句中to improve his spoken English是目的状语,放句首时直接用To improve;
3. 两个简单句表目的,合并时用in order to或so as to;
4. 两个简单句合并,用不定式表目的,即I go to school to learn new things.
【答案】
1. to catch 2. To improve 3. in order to/so as to 4. I go to school to learn new things.
【知识点】
so...that句型转换、不定式作目的状语、目的状语表达
【点评】
本题考查初中英语基础句型转换,核心是掌握目的状语的常见同义转换结构,属于基础题型,需牢记相关用法。
【难度系数】
0.6
三、短文填空(必要时可加情态动词或助动词)。
Our school Sports Day is coming soon. I get up early every morning 1.
to practise
(practise) running. I also do exercise in the playground after class in order 2.
to build
(build) stronger muscles. My friend Lucy joins me so as 3.
to improve
(improve) her jumping skills.
Yesterday, we arrived at school 30 minutes earlier to prepare the equipment. Our teacher gave us coloured flags 4.
to mark
(mark) the running tracks clearly. We placed the flags carefully to avoid confusion during competitions.
During breaks, I read sports magazines 5.
to learn
(learn) new techniques. Lucy brought healthy snacks like bananas in order 6.
to keep
(keep) us energetic. We even made a team to cheer for each other.
Sports Day is not just about winning. We work hard 7.
to build
(build) teamwork and friendship. Everyone tries their best 8.
to make
(make) this event successful.
Let's cheer for all participants!

答案

1. to practise 2. to build 3. to improve 4. to mark 5. to learn 6. to keep 7. to build 8. to make

解析

【分析】
本题为短文填空,需运用动词的适当形式,核心考查动词不定式的用法。解题思路:先分析每个空格前后的逻辑关系,判断是否表目的;再结合固定搭配(如in order to do、so as to do等)确定形式,目的状语通常用动词不定式(to+动词原形),据此逐个推导答案。
【解析】
1. 空格处表“早起”的目的,用动词不定式作目的状语,故填to practise;
2. 固定搭配in order to do sth.(为了做某事),故填to build;
3. 固定搭配so as to do sth.(以便做某事),故填to improve;
4. 空格处表“给彩旗”的目的,用不定式作目的状语,故填to mark;
5. 空格处表“读杂志”的目的,用不定式作目的状语,故填to learn;
6. 固定搭配in order to do sth.,故填to keep;
7. 空格处表“努力”的目的,用不定式作目的状语,故填to build;
8. 固定搭配try one's best to do sth.(尽某人最大努力做某事),故填to make。
【答案】
1. to practise 2. to build 3. to improve 4. to mark 5. to learn 6. to keep 7. to build 8. to make
【知识点】
动词不定式作目的状语;固定搭配(in order to/so as to等)
【点评】
本题考查基础语法中动词不定式作目的状语的用法及常见固定搭配,属于易得分的基础题型,只要掌握相关规则即可解答。
【难度系数】
0.3