2026年仁爱英语同步练习册九年级英语全一册仁爱版第42页答案
一、用所给前缀组成新的词语并完成句子。

1. We need to
rebuild
the burned forests by planting new trees.
2. The government should
rewrite
the rules to make companies produce less plastic waste.
3. People must
rethink
how they use water and save it every day.
4. Instead of throwing away glass bottles, we can wash and
reuse
them for many times.
5. Artists sometimes
recreate
beautiful artworks from waste like bottles or newspapers.

答案

1. rebuild 2. rewrite 3. rethink
4. reuse 5. recreate

解析

【分析】
本题考查前缀re-(意为“再,重新”)与动词组合构成新动词的用法,解题思路为:先明确每个句子的语境,再将前缀re-与右侧给出的动词组合成新单词,最后结合语境选择匹配的新单词填入句子。
【解析】
1. 句子语境为“通过种新树修复烧毁的森林”,re与build组合成rebuild(重建),符合语境;
2. 句子语境为“政府修改规则减少塑料垃圾”,re与write组合成rewrite(重写),符合语境;
3. 句子语境为“重新思考用水方式并节约”,re与think组合成rethink(重新思考),符合语境;
4. 句子语境为“重复使用玻璃瓶”,re与use组合成reuse(重复使用),符合语境;
5. 句子语境为“用废品创作艺术品”,re与create组合成recreate(再创作),符合语境。
【答案】
1. rebuild 2. rewrite 3. rethink 4. reuse 5. recreate
【知识点】
前缀re-的用法;动词派生
【点评】
本题结合句子语境考查前缀re-构成动词的应用,需掌握re-的含义及常见动词的派生形式,难度适中。
【难度系数】
0.6
二、选出正确答案并填在横线上。
1. Scientists recently
have found
cleaner ways to make energy. (found/ have found)
2. People
have reduced
the use of plastic bags recently. (reduced/ have reduced)
3. Many people
started
using recycling bins last year. (started/ have started)
started)
4. Last week, our class
planted
twenty trees in the park. (planted/ have planted)
5. Our school
has stopped
using plastic bins since last month. (stopped/ has stopped)

答案

1. have found 2. have reduced
3. started 4. planted 5. has stopped

解析

【分析】本题考查一般过去时与现在完成时的用法区别,解题思路为:根据句中的时间状语判断时态——若时间状语是recently、since+过去时间点等,动作与现在相关,用现在完成时;若时间状语是last+时间(如last year、last week)等明确的过去时间,动作仅发生在过去,用一般过去时,再结合主语的单复数确定动词形式。
【解析】1. 时间状语recently(近来)提示动作与现在相关,用现在完成时,主语Scientists是复数,故填have found;2. recently提示用现在完成时,主语People是复数,故填have reduced;3. 时间状语last year(去年)是明确的过去时间,用一般过去时,故填started;4. 时间状语last week(上周)是明确的过去时间,用一般过去时,故填planted;5. 时间状语since last month(自从上个月)提示主句用现在完成时,主语Our school是第三人称单数,故填has stopped。
【答案】1. have found 2. have reduced 3. started 4. planted 5. has stopped
【知识点】一般过去时、现在完成时
【点评】本题聚焦初中英语核心时态(一般过去时与现在完成时)的区分,通过时间状语判断时态是解题关键,属于基础考点,难度适中。
【难度系数】0.5
三、按要求完成句子。
1. Many cities have built more bicycle lanes recently.(改为一般疑问句)
Have
many cities
built
more bicycle lanes recently?
2. Scientists have developed new methods to produce clean energy.(改为否定句)
Scientists
haven't
developed
new methods to produce clean energy.
3. Youyou has used the same water bottle since two years ago.(改为同义句)
Youyou has used the same water bottle
for
two
years
.
4. Have you ever recycled bottles and newspapers?(作出肯定回答)
Yes, I/we have.

5. My family have recycled all the glass bottles since January.(对画线部分提问)
What
have
your family
done
since January?

答案

1. Have; built 2. haven't developed
3. for two years 4. Yes, I/we have.
5. What have; done

解析

【分析】
本题考查现在完成时的相关句型转换,需结合现在完成时的结构(have/has+过去分词)分析每道题的要求:
1. 陈述句改一般疑问句:将助动词Have/Has提前,主语many cities为复数,故用Have,后面动词用过去分词built;
2. 陈述句改否定句:在助动词have后加not并缩写为haven't,后面动词用过去分词developed;
3. 同义句转换:since+时间点(two years ago)可转换为for+时间段(two years),符合现在完成时的时间状语用法;
4. 现在完成时一般疑问句的肯定回答:结构为“Yes, 主语+have/has”,问句主语为you,回答用I或we,助动词用have;
5. 对画线动作提问:用What引导特殊疑问句,现在完成时的结构为“What+have/has+主语+done”,主语your family为复数,故用have,动词用done。
【解析】
1. 原句为现在完成时,主语many cities是复数,改一般疑问句时将助动词Have提前,后面动词用过去分词built,故填Have; built;
2. 现在完成时的否定句在助动词have后加not,缩写为haven't,后面接动词过去分词developed,故填haven't developed;
3. since two years ago(自从两年前)与for two years(持续两年)在现在完成时中可互换,故填for two years;
4. 现在完成时一般疑问句“Have you...?”的肯定回答为“Yes, I/we have.”;
5. 画线部分是做的动作,用What提问,现在完成时的特殊疑问句结构为“What have+主语+done”,故填What have; done。
【答案】
1. Have; built 2. haven't developed 3. for two years 4. Yes, I/we have. 5. What have; done
【知识点】
现在完成时的句式转换、现在完成时的同义转换
【点评】
本题围绕现在完成时的核心考点设置句型转换题,涵盖一般疑问句、否定句、同义句、回答及特殊疑问句,是初中英语现在完成时的基础练习,需熟练掌握现在完成时的结构和句式变化规则。
【难度系数】
0.7