一、根据中文或首字母提示写出正确的单词。
1.（2022·常州市溧阳期末）He seems very ______（严肃的），but in fact he has a good sense of humour.
2.（2024·苏州市立达中学期末）Without modern machines，______（挖）such a big hole wasn't an easy task in the past.
3.（2022·连云港市东海期末）The survey shows that trees can ______（减少）dust and keep soil in place during storms.
4. The teacher says waste can be ______（回收利用）to protect our environment.
5.（2024·苏州市姑苏区七校联考）Reading makes one w______. It is a wonderful habit to develop.

1. serious
2. digging
3. reduce
4. recycled
5. wise

二、动词填空。
1. The accident ______（happen）on a cold winter night last year.
2. Students can have more free time for their hobbies by ______（plan）their time better.
3. Nothing ______（offer）to them at first，so they didn't know how to start.
4. It is meaningful for everyone ______（give）help to the people in need.
5. The government ______（take）action to protect the rivers. Now they are cleaner.

happened
@@planning
@@was offered
@@to give
@@has taken

1.（2024·泰州市兴化期末）—Why are more and more countries starting to use new types of energy?
—Because they cost ______ and are good for the environment.
A. little B. cheap C. low D. much

1. A

2.（2023·连云港市灌云期末）—Look! Someone ______ the lights.
—Well，it wasn't me. I didn't do it.
A. turns off B. is turning off C. has turned off D. will turn off

2. C

3. Trees can help keep the air clean. ______，they can make the city cooler in hot summer.
A. However B. Moreover C. Otherwise D. Indeed

3. B

4.（2022·贵州毕节）Many people have lost their homes because of wars. It's important for people ______ a peaceful world.
A. have B. had C. to have D. to be having

4. C 【解析】“It is + adj. + for sb to do sth”意为“做某事对某人来说是……的”，是固定句型，其中动词不定式作真正的主语。

四、根据中文提示完成句子。
1. 过绿色生活对每个人来说都很重要。
It's very important ______ ______ ______ ______ ______.
2. 马路上太多的汽车导致越来越严重的空气污染。
Too many cars on the road ______ ______ ______ ______ ______.
3. 学生们被告知要学会如何循环利用水。
Students ______ ______ ______ learn how to ______ ______.
4. 我们可以采取什么措施来减少噪声污染呢？
What action can we ______ ______ ______ ______ ______?
5. 他经常通过缩短淋浴时间来节约水。
He often ______ ______ ______ ______ ______ ______.

1. for everyone/everybody to live a green life
2. cause more and more serious air pollution
3. are told to, recycle water
4. take to reduce noise pollution
5. saves water by taking shorter showers