一、根据首字母补全单词,完成句子。
1. Peter, could you please take out the r____?
2. It's your turn to s____ the floor.
3. Can you f____ a paper plane for the little boy?
4. She won't be happy if she sees this m____.
5. Our classroom should be c____ every day.

【解析】：
这是一道英语词汇题，主要考查学生根据句子语境和首字母提示补全单词的能力。题目给出了五个句子，每个句子中都有一个空白处需要填写，且每个空白处的单词首字母已给出。学生需要根据句子的意思和首字母提示，推断出应该填入的单词。
1. 第一个句子中提到了“take out”，意思是“带出去”，结合首字母“r”，可以推断出应该填入的单词是“rubbish”，意为“垃圾”。
2. 第二个句子中提到了“turn”和“floor”，结合首字母“s”，可以推断出应该填入的单词是“sweep”，意为“扫”，整个短语“sweep the floor”表示“扫地”。
3. 第三个句子中提到了“paper plane”，意思是“纸飞机”，结合首字母“f”，可以推断出应该填入的单词是“fold”，意为“折叠”。
4. 第四个句子中提到了“won't be happy”和“sees this”，结合首字母“m”，可以推断出应该填入的单词是“mess”，意为“混乱”。
5. 第五个句子中提到了“classroom”和“every day”，结合首字母“c”，可以推断出应该填入的单词是“clean”，意为“打扫”，且因为句子中有“be”，所以“clean”要用过去分词形式“cleaned”，表示被动语态，即“教室应该每天被打扫”。但考虑到题目可能要求的是形容词形式，所以应填“clean”的形容词形式“clean”，表示“干净的”。
【答案】：
1. rubbish；
2. sweep；
3. fold；
4. mess；
5. clean。

二、用所给单词的适当形式填空。
1. Most people today are worried about not ____ (get) good jobs.
2. I want to learn more about how ____ (speak) English well.
3. It is a good way ____ (help) others.
4. What you told me won't make a ____ (different) to my own idea.
5. Two weeks ____ (be) enough for us.
6. All the students will go out and play if it stops ____ (rain) later.

1. getting 2. to speak 3. to help 4. difference 5. is 6. raining

三、连词成句。
1. I, hope, Thursday, next, to, my, party, come, can, you
______.
2. me, pass, you, salt, some, could
______?
3. asking, me, your, party, thanks, a, lot, for, to
______.
4. have, a, cup, of, tea, may, I, please
______?
5. speak, to, Bruce, I, could, please
______?

【解析】：
这些题目考查的是英语句子的构造，需要将给定的单词按照正确的语法顺序排列成完整的句子。对于八年级的学生来说，他们应该已经掌握了基本的句子结构，包括主语、谓语、宾语等，并了解常见的短语搭配和语序。
1. 对于第一个句子，需要识别出主语“I”，谓语“hope”，以及宾语从句的内容“you can come to my party next Thursday”。将这些元素按照正确的顺序组合，即可得到完整的句子。
2. 第二个句子是一个礼貌的请求，需要识别出“Could you pass me some salt?”的结构，其中“Could you”是礼貌的请求开头，“pass me some salt”是请求的内容。
3. 第三个句子是表达感谢的句子，关键在于识别出“thanks for doing sth.”的结构，并将“asking me to your party”作为感谢的内容。
4. 第四个句子又是一个礼貌的请求，询问是否可以喝杯茶，需要识别出“May I have a cup of tea, please?”的结构。
5. 第五个句子是询问是否可以和Bruce通话，需要识别出“Could I speak to Bruce, please?”的结构。
【答案】：
1. I hope you can come to my party next Thursday.
2. Could you pass me some salt?
3. Thanks a lot for asking me to your party.
4. May I have a cup of tea, please?
5. Could I speak to Bruce, please?

四、选择合适的句子补全对话。(其中有一项为多余选项)
A: I'd like to join the volunteer project, but I don't know what to do.
B: 1. ____
A: I want to be a teacher.
B: 2. ____
A: I love studying.
B: 3. ____
A: I usually have many lessons on weekends.
B: You could start a club.
A: 4. ____
B: You could help the kids who want to learn something.
A: 5. ____
B: You could put up some signs to let everyone know it.
A: That's a good idea.
A. What do you love?
B. Who could I help?
C. What do you want to be?
D. How could I let everyone know it?
E. What kind of volunteer project?
F. What do you do on weekends?
1. ____ 2. ____ 3. ____ 4. ____ 5. ____

1.C 2.A 3.F 4.B 5.D