A. 根据句意、中文释义、首字母和音标提示，写出句中所缺单词。
1. Students should learn how to keep a (平衡) between schoolwork and hobbies.
2. I like to live in the (乡村) because I like the fresh air there.
3. My family plan to go for a (野餐). We are thinking about the place now.
4. Drinking a glass of milk can help you fall (睡着) quickly.
5. With the s from my parents, I tried out for the school basketball team.
6. The Maths problem is too difficult. N of the students can solve it.
7. Please speak c, so everybody can hear you.
8. He took out his (/ˈkæmrə/) to catch the happy moment.
9. The cycling trip was so (/ɪnˈdʒɔɪəbl/) that we wanted a second time.
10. Don’t worry! You still have one more (/tʃɑːns/).
1. Students should learn how to keep a (平衡) between schoolwork and hobbies.
2. I like to live in the (乡村) because I like the fresh air there.
3. My family plan to go for a (野餐). We are thinking about the place now.
4. Drinking a glass of milk can help you fall (睡着) quickly.
5. With the s from my parents, I tried out for the school basketball team.
6. The Maths problem is too difficult. N of the students can solve it.
7. Please speak c, so everybody can hear you.
8. He took out his (/ˈkæmrə/) to catch the happy moment.
9. The cycling trip was so (/ɪnˈdʒɔɪəbl/) that we wanted a second time.
10. Don’t worry! You still have one more (/tʃɑːns/).
答案：1. balance
2. countryside
3. picnic
4. asleep
5. support
6. None
7. clearly
8. camera
9. enjoyable
10. chance
2. countryside
3. picnic
4. asleep
5. support
6. None
7. clearly
8. camera
9. enjoyable
10. chance
解析：
1. 考查固定搭配与单词拼写，“keep a balance”是固定短语，意为“保持平衡”，故填balance。
2. 考查单词拼写，“countryside”表示“乡村”，“live in the countryside”意为“住在乡村”，契合语境，故填countryside。
3. 考查固定短语，“go for a picnic”为固定表达，意为“去野餐”，故填picnic。
4. 考查固定搭配，“fall asleep”是固定短语，意为“入睡”，故填asleep。
5. 考查固定短语与单词拼写，“with the support of...”是固定表达，意为“在……的支持下”，结合首字母提示，故填support。
6. 考查不定代词，根据“数学题太难”可知没有学生能解出，“none of...”表示“……中没有一个”，结合首字母提示，故填None。
7. 考查副词，此处需副词修饰动词speak，结合“让每个人都能听到”的语境及首字母提示，填clearly（清楚地）。
8. 考查音标对应单词，根据音标/ˈkæmrə/可知对应单词camera（相机）。
9. 考查音标对应单词，根据音标/ɪnˈdʒɔɪəbl/可知对应单词enjoyable（令人愉快的）。
10. 考查音标对应单词，根据音标/tʃɑːns/可知对应单词chance（机会）。
2. 考查单词拼写，“countryside”表示“乡村”，“live in the countryside”意为“住在乡村”，契合语境，故填countryside。
3. 考查固定短语，“go for a picnic”为固定表达，意为“去野餐”，故填picnic。
4. 考查固定搭配，“fall asleep”是固定短语，意为“入睡”，故填asleep。
5. 考查固定短语与单词拼写，“with the support of...”是固定表达，意为“在……的支持下”，结合首字母提示，故填support。
6. 考查不定代词，根据“数学题太难”可知没有学生能解出，“none of...”表示“……中没有一个”，结合首字母提示，故填None。
7. 考查副词，此处需副词修饰动词speak，结合“让每个人都能听到”的语境及首字母提示，填clearly（清楚地）。
8. 考查音标对应单词，根据音标/ˈkæmrə/可知对应单词camera（相机）。
9. 考查音标对应单词，根据音标/ɪnˈdʒɔɪəbl/可知对应单词enjoyable（令人愉快的）。
10. 考查音标对应单词，根据音标/tʃɑːns/可知对应单词chance（机会）。
B. 根据句意，用括号中所给单词的正确形式填空。
11. (luck), Adam won the game at last.
12. We should learn about some (safe) tips before we go out for a camp.
13. He carelessly wrote down the wrong answer because he didn’t notice the (follow) details.
14. The zookeeper (动物园管理员) (find) out where the panda was at last.
15. After checking all the things, we (set) off for the airport.
11. (luck), Adam won the game at last.
12. We should learn about some (safe) tips before we go out for a camp.
13. He carelessly wrote down the wrong answer because he didn’t notice the (follow) details.
14. The zookeeper (动物园管理员) (find) out where the panda was at last.
15. After checking all the things, we (set) off for the airport.
答案：11. Luckily
12. safety
13. following
14. found
15. set
12. safety
13. following
14. found
15. set
解析：
11. 此处需要用副词作状语修饰整个句子，luck的副词形式是Luckily，句首单词首字母大写。
12. 此处需要名词作定语修饰tips，safe的名词形式是safety，"safety tips"意为“安全提示”。
13. 此处需要形容词修饰名词details，follow的形容词形式following表示“以下的，接下来的”，符合语境。
14. 根据句中"didn’t notice"和"at last"可知句子为一般过去时，find的过去式是found。
15. 根据语境可知动作发生在过去，句子为一般过去时，set的过去式与原形一致，为set。
12. 此处需要名词作定语修饰tips，safe的名词形式是safety，"safety tips"意为“安全提示”。
13. 此处需要形容词修饰名词details，follow的形容词形式following表示“以下的，接下来的”，符合语境。
14. 根据句中"didn’t notice"和"at last"可知句子为一般过去时，find的过去式是found。
15. 根据语境可知动作发生在过去，句子为一般过去时，set的过去式与原形一致，为set。