新课堂同步学习与探究九年级英语上学期人教版
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将文中画线部分(A)连词成句。(A) the, only, is, serious, for, a, test, illness, reason, missing
答案：The only serious reason for missing a test is illness.
解析：观察所给单词，"the only serious reason"（唯一严重的理由）作主语，"for missing a test"（错过考试的）作定语修饰reason，
"is"为系动词，"illness"（疾病）作表语。按照陈述句语序"主语+系动词+表语"组合，句子为"The only serious reason for missing a test is illness."
4. 把文中画线部分(B)翻译成英语。(B)(
without knocking first
)
答案：without knocking first
解析：“未先”可译为“without...first”，“敲门”是“knock”，“without”是介词，后接动名词，所以“未先敲门”译为“without knocking first”。
5. 把文中画线句子(C)翻译成汉语。(C) Wearing a hat in class is considered impolite by many teachers.
答案：许多老师认为在课堂上戴帽子是不礼貌的。
解析：“Wearing a hat in class”（在课堂上戴帽子）是动名词短语作主语；“is considered impolite”（被认为是不礼貌的）是被动语态；“by many teachers”（被许多老师）是动作的执行者。所以整句话译为“许多老师认为在课堂上戴帽子是不礼貌的。”
Dear Jenny,
I'm glad to get your e-mail. In the e-mail, you asked me about my school rules. Here I will tell you about them.
We must wear school uniforms at school and keep them clean and tidy. We are not allowed to be late for school or leave early. It's forbidden to throw things from upstairs. We can't use sharp tools like knives when playing. Besides, we aren't permitted to get our ears pierced or wear earrings.
That's all. What about yours?
Yours,
Zhang Jing
答案：Dear Jenny,
I'm glad to get your e-mail. In the e-mail, you asked me about my school rules. Here I will tell you about them.
We must wear school uniforms at school and keep them clean and tidy. We are not allowed to be late for school or leave early. It's forbidden to throw things from upstairs. We can't use sharp tools like knives when playing. Besides, we aren't permitted to get our ears pierced or wear earrings.
That's all. What about yours?
Yours,
Zhang Jing
解析：根据提示，依次介绍校规：“在校必须穿校服，并保持衣服整洁”（We must wear school uniforms at school and keep them clean and tidy.）；“不许迟到、早退”（We are not allowed to be late for school or leave early.）；“不准从楼上往下扔杂物”（It's forbidden to throw things from upstairs.）；“玩耍时不能使用刀等尖锐的器械”（We can't use sharp tools like knives when playing.）；“不允许穿耳洞、戴耳环”（Besides, we aren't permitted to get our ears pierced or wear earrings.）。注意语句通顺，符合词数要求。
