一、根据汉语意思写单词。
1. Jack was ill, so I went to the （会议）instead of him.
2. This poem is too short. It just has three （字行）.
3. —What are Lucy and Mike doing?
—They are making a plan for their （训练）.
4. She has （困难）in slowing down to enjoy small happy moments in daily life.
5. We should take our study （严肃地）as it has to do with our future.

1. meeting 2. lines 3. training 4. difficulty 5. seriously

1. 此处“会议”对应的英文单词是meeting，go to the meeting为常用搭配，意为参加会议，此处用名词单数即可。
2. “字行”的英文是line，空格前有数词three，数量大于1，因此要使用名词复数形式lines。
3. 此处“训练”的英文是training，为不可数名词，符合语境。
4. 此处考查固定搭配have difficulty (in) doing sth.，意为“做某事有困难”，所以填名词difficulty。
5. 此处考查固定搭配take...seriously，意为“严肃对待……”，修饰动词take需要用副词seriously。

二、选词填空。

Last week, we got the exciting 6. from my uncle about a family gathering. He told us all the 7. about the gathering like the time and place in our family chat group. This time, we will hold the gathering 8. our old house in the countryside. We 9. spent our childhood summers there. Big family 10. are always the best chances for everyone to talk and share stories in person.
We plan to cook lots of 11. food for our family members. We'll also take many warm photos to 12. these happy moments. I plan to 13. the information in my diary so that I will never forget. I can't wait to get together right away. It must be a(n) 14. day!

【解析】：我们可以结合句意、单词词性和基础语法规则逐一确定答案：
6. 此处表达收到叔叔传来的关于家庭聚会的振奋消息，news意为“消息”，符合语境。
7. 句中提到告知聚会的时间、地点等内容，对应“所有细节”，all后接可数名词复数，detail变为复数details。
8. 表示在小地点“乡下的老房子”前，要使用介词at，是地点介词的固定用法。
9. 此处修饰动词spent，副词once意为“曾经”，符合“我们曾在那里度过童年夏日”的语境。
10. 句中be动词为are，主语需要用复数形式，reunion变为复数reunions，指代多场家庭团聚活动，符合句意。
11. 此处修饰名词food，形容词delicious意为“美味的”，构成“美味的食物”，符合语境。
12. to后面接动词原形，record意为“记录”，拍照记录欢乐时刻符合逻辑。
13. plan to后接动词短语原形，write down意为“记下、写下”，把相关信息记在日记里符合语境。
14. 此处修饰事物day，要把动词amaze变为修饰事物的形容词amazing，意为“令人惊喜的”，符合句意。
【答案】：6. news
7. details
8. at
9. once
10. reunions
11. delicious
12. record
13. write down
14. amazing

三、用括号中所给单词的适当形式填空。
15. If it doesn't rain for a long time, the earth (get) very dry.
16. If we go out with our friends, we usually (have) lunch at a Chinese restaurant.
17. If I'm tired, I always (go) to bed early.
18. Water (become) ice if the temperature is below zero.
19. If you eat a lot, you may (put) on weight.

15. will get
16. have
17. go
18. becomes
19. put

本题主要考查if引导的条件状语从句的时态用法以及情态动词的相关规则：
15. 遵循if条件状语从句“主将从现”的规则，从句用一般现在时表将来含义，主句需要使用一般将来时，结构为will+动词原形。
16. 句中出现频度副词usually，描述经常性、习惯性的动作，主从句都使用一般现在时，主语为we，谓语用动词原形。
17. 句中出现频度副词always，描述经常性、习惯性的动作，主从句都使用一般现在时，主语为I，谓语用动词原形。
18. 该句表述客观科学真理，if引导条件状语从句，主从句都用一般现在时，主语Water是不可数名词，谓语动词要使用第三人称单数形式。
19. 情态动词may后面必须接动词原形。