2026年知识与能力训练七年级英语上册沪教版第71页答案
Ⅱ.Write the words in right forms according to the requirements.
1. powerful(名词)
power

2. teach(第三人称单数)
teaches

3. appear(反义词)
disappear

4. different(名词)
difference

5. competition(动词)
compete

6. equip(名词)
equipment

7. recently(形容词)
recent

8. decorate(名词)
decoration

9. fly(过去式)
flew

10. surprise(表感受形容词)
surprised

答案

1. power
2. teaches
3. disappear
4. difference
5. compete
6. equipment
7. recent
8. decoration
9. flew
10. surprised

解析

【分析】
本题考查英语词汇的词形转换,涵盖名词、动词第三人称单数、反义词、过去式、表感受形容词等多种形式转换,需掌握常见词缀变化、不规则动词变化等规则,逐个分析每个单词的转换逻辑:1. 形容词powerful转换为名词,去掉后缀ful;2. 动词teach以ch结尾,第三人称单数加es;3. 动词appear加否定前缀dis-构成反义词;4. 形容词different转换为名词,调整后缀;5. 名词competition转换为动词,调整后缀;6. 动词equip转换为名词,加后缀ment;7. 副词recently转换为形容词,去掉后缀ly;8. 动词decorate转换为名词,加后缀tion;9. 动词fly为不规则动词,过去式为flew;10. 名词surprise转换为表感受的形容词,加后缀ed(修饰人)。
【解析】
1. powerful(形容词,强大的)的名词形式为power(力量);
2. teach(动词,教)以ch结尾,第三人称单数形式为teaches;
3. appear(动词,出现)的反义词为加否定前缀dis-的disappear(消失);
4. different(形容词,不同的)的名词形式为difference(差异);
5. competition(名词,比赛)的动词形式为compete(竞争);
6. equip(动词,装备)的名词形式为equipment(装备);
7. recently(副词,最近)的形容词形式为recent(最近的);
8. decorate(动词,装饰)的名词形式为decoration(装饰);
9. fly(动词,飞)的过去式为不规则变化flew;
10. surprise(名词/动词,惊讶)表感受的形容词为surprised(感到惊讶的,修饰人)。
【答案】
1. power
2. teaches
3. disappear
4. difference
5. compete
6. equipment
7. recent
8. decoration
9. flew
10. surprised
【知识点】
英语词形转换、动词第三人称单数变化、不规则动词过去式
【点评】
本题为基础英语词汇题,考查常见词形转换规则,涉及词缀变化、不规则变化等,是英语学习的基础内容,难度较低,适合低年级学生练习。
【难度系数】
0.9
Ⅲ.Complete the sentences with proper words.
1. We can use solar
power
(能量)to make electricity(电).
2. The sun will
disappear
(消失)if there are clouds.
3. My father helped me make a paper
rocket
(火箭).
4. You can find many interesting books in the book
fair
(集市).
5. Students will learn some computer
skills
(技能)at school.
6. Mr Smith comes from America. He
teaches
(teach) us English.
7. We were all
surprised
(surprise) when she got a full mark in the exam.
8. Jack was able to work out such a difficult problem. It was really
amazing
(amaze)
9. Luckily, I have a chance to
compete
(competition) with all the top students.
10. China is a
powerful
(power) country.

答案

1. power
2. disappear
3. rocket
4. fair
5. skills
6. teaches
7. surprised
8. amazing
9. compete
10. powerful

解析

【分析】
本题为英语词汇填空题,需结合中文提示、句子语境及语法规则解题:1-5题根据中文提示写出对应名词,注意单复数;6题考查一般现在时第三人称单数形式;7-8题考查形容词修饰人/物的不同形式;9题考查不定式结构中动词的形式;10题考查名词变形容词的用法。
【解析】
1. 中文提示“能量”对应名词power,solar power是固定搭配“太阳能”,故填power;
2. 中文提示“消失”对应动词disappear,will后接动词原形,故填disappear;
3. 中文提示“火箭”对应名词rocket,paper rocket意为“纸火箭”,故填rocket;
4. 中文提示“集市”对应名词fair,book fair意为“书市”,故填fair;
5. 中文提示“技能”对应名词skill,many后接可数名词复数,故填skills;
6. 主语He是第三人称单数,一般现在时中动词teach需变三单形式teaches,故填teaches;
7. 主语We指人,修饰人的形容词用surprised,be surprised为固定搭配,故填surprised;
8. 主语It指代事物,修饰物的形容词用amazing,故填amazing;
9. a chance to do sth结构中,to后接动词原形,名词competition的动词形式为compete,故填compete;
10. 修饰名词country需用形容词,名词power的形容词形式为powerful,故填powerful;
【答案】
1. power
2. disappear
3. rocket
4. fair
5. skills
6. teaches
7. surprised
8. amazing
9. compete
10. powerful
【知识点】
词汇运用、词性转换、一般现在时
【点评】
本题聚焦初中英语基础词汇及核心语法(时态、形容词用法、不定式),题型常规,侧重考查学生对基础知识点的掌握与灵活运用,是英语学习中的常见基础题型。
【难度系数】
0.6