2026年新课程新教材导航学八年级英语下册外研版第20页答案
一、用所给单词的适当形式填空
1. We had a discussion about the travel plan. There was no
disagreement
(disagree)—everyone supported it.
2. Three
policewomen
(policewoman) are helping the lost child to find his parents.
3. We should be kind and helpful to the
elderly
(elderly) in our society.
4. She didn't
realise
(realise) her mistake until the teacher pointed it out.
5. My best friend
promised
(promise) to help me with my English homework yesterday.
6. It's rude
to interrupt
(interrupt) the teacher when she is giving lessons.
7. Tom used to finish his homework on time, but lately he has become
lazier
(lazy) than before.
8. When she heard the sudden bad news, her face turned
pale
(pale) at once.
9. After finishing the story, the writer summarised three main
points
(point) to help readers understand the theme better.
10. My cousin and I had a pleasant
conversation
(conversation) about English movies.

答案

1. disagreement 2. policewomen
3. elderly 4. realise 5. promised
6. to interrupt 7. lazier 8. pale
9. points 10. conversation

解析

【分析】
本题为用所给单词适当形式填空的题型,需结合句子结构、语法规则(词性转换、名词单复数、时态、固定搭配、形容词比较级等)确定单词的正确形式。具体思路:1. 分析no后需接名词,转换动词为名词;2. three后接可数名词复数,变化不规则名词复数;3. 掌握“the + 形容词”表一类人的用法;4. didn't后接动词原形;5. 由yesterday确定一般过去时,变化动词过去式;6. 运用固定句型It's + adj + to do sth;7. than是比较级标志,变化形容词比较级;8. turn为系动词,后接形容词原形;9. three后接可数名词复数;10. a后接名词单数。
【解析】
1. 句意:我们讨论了旅行计划,没有分歧,每个人都支持。no后需接名词,动词disagree的名词形式为disagreement,故填disagreement。
2. 句意:三名女警察正在帮迷路的孩子找父母。three后接可数名词复数,policewoman的复数为policewomen,故填policewomen。
3. 句意:我们应该对社会上的老年人友善且乐于助人。“the + 形容词”表示一类人,elderly本身可作形容词,the elderly指老年人,故填elderly。
4. 句意:直到老师指出,她才意识到自己的错误。助动词didn't后接动词原形,故填realise。
5. 句意:我最好的朋友昨天答应帮我做英语作业。yesterday是一般过去时的标志,动词promise的过去式为promised,故填promised。
6. 句意:老师上课时打断她是不礼貌的。固定句型It's + 形容词 + to do sth表示“做某事是……的”,故填to interrupt。
7. 句意:汤姆过去按时完成作业,但最近他比以前更懒了。than是比较级的标志,形容词lazy的比较级为lazier,故填lazier。
8. 句意:当她听到突然的坏消息时,脸色立刻变得苍白。turn是系动词,后接形容词作表语,故填pale。
9. 句意:写完故事后,作者总结了三个要点来帮助读者更好理解主题。three后接可数名词复数,point的复数为points,故填points。
10. 句意:我和表姐关于英语电影进行了愉快的交谈。a后接可数名词单数,故填conversation。
【答案】
1. disagreement 2. policewomen 3. elderly 4. realise 5. promised 6. to interrupt 7. lazier 8. pale 9. points 10. conversation
【知识点】
单词适当形式转换;名词单复数;时态与固定句型
【点评】
本题为基础词汇运用题,主要考察学生对英语基础词汇的词性变化、名词单复数、时态、固定搭配等核心知识点的掌握,是巩固英语基础的典型题型。
【难度系数】
0.6
二、用方框中所给单词的适当形式填空
policewoman disagreement conversation lazy point promise
1. My mother
promised
to buy me a new book as my birthday gift last week.
2. Four
policewomen
helped the old man carry his heavy bags to the bus stop.
3. You can underline(画底线标出) some important
points
while reading the passage to save time for review.
4. He is much
lazier
than before—he often sleeps late and doesn't do morning exercises.
5. After the class meeting, the teacher had a private
conversation
with the student who had been late many times.
6. After a long talk, they finally solved the
disagreement
and became good friends again.

答案

1. promised 2. policewomen
3. points 4. lazier 5. conversation
6. disagreement

解析

【分析】
本题为单词适当形式填空题,解题思路是:先通读每个句子,分析句子的语法特征(如时态、数的要求、比较级标志等),再结合方框内单词的词义,选择匹配的单词并按规则变形。例如,看到时间状语last week确定用动词过去式,看到数词four确定用名词复数,看到than确定用形容词比较级,再结合语境匹配词义即可。
【解析】
1. 句中时间状语last week(上周)提示用一般过去时,方框内动词promise的过去式为promised,符合“妈妈答应买生日礼物”的语境。
2. 数词four后需接可数名词复数,policewoman的复数形式是policewomen,对应“四个女警察”的语义。
3. some后接可数名词复数,point表示“要点”,其复数形式为points,符合“标出重要要点”的要求。
4. 句中than是比较级标志,形容词lazy的比较级为lazier,对应“比以前更懒”的语境。
5. private是形容词,后接名词,固定搭配have a conversation with意为“和……交谈”,故填conversation。
6. 动词solve后需接名词,disagreement意为“分歧”,符合“解决分歧”的语义。
【答案】
1. promised 2. policewomen 3. points 4. lazier 5. conversation 6. disagreement
【知识点】
动词过去式、名词单复数、形容词比较级
【点评】
本题为基础单词适当形式填空题,需结合句子语法规则和词义选择变形单词,核心考察常见单词的变形规则,是初中英语基础题型。
【难度系数】
0.5