1 . 词性转换
1. congratulation n. 祝贺，恭喜；贺辞；恭贺→ ________ vt.祝贺
2. assume vt.假定，认为；承担(责任)；呈现→ ________ n. 假定；设想
3. tend vi.往往会；vt.照看→ ________ n. 趋势，倾向
4. energy n. 能量；精力→ ________ adj.精力旺盛的
5. injury n. 伤害，损伤→ ________ vt.伤害，损伤→ ________ adj.受伤的
6. equipment n. 配备，装备；设备→ ________ v. 配备；装备
7. announce vt.宣布，宣告；通知→ ________ n. 宣布，宣告；通知
8. hesitate vi.犹豫，迟疑→ ________ n. 犹豫，迟疑
9. admit vt.& vi.承认；招认；准许进入；准许加入→ ________ n.准入；准许；录取；入场费
10. inspire vt.激励，鼓舞；启发思考；使产生（感觉或情感）→ ________ n. 灵感；鼓舞→ ________ adj.受鼓舞的→ ________ adj.令人鼓舞的
11. satisfaction n. 满意；满足，达到→ ________ vt.满足；使满意→ ________ adj.令人满意的→ ________ adj.满足的；（感到）满意的
12. exist vi.存在；生活，生存→ ________ n. 生存；存在

4 . Today’s a__________ (公告；通告) of the completion of the bridge across the sea came after years of construction workers’ hard work day and night. (根据中英文提示填空)

5 . 选用方框内合适的内容替换下列句子中的划线单词。

A. at once                         B. broke out             C. happen D. official statement             E. terrible storm

1. The writer was sleeping downstairs when the volcano erupted.
2. When the fire alarm sounds, act immediately to ensure your safety.
3. We were shocked by the announcement that the heavy rain caused a landslide.
4. If headaches only occur at night, lack of fresh air and oxygen is often the cause.
5. A hurricane can tear down houses, cause landslides and floods and leave millions homeless.

10 . The___________(announce) of isolation (隔离) at home during the time when COVID-19 broke out was welcomed by the public. (所给词的适当形式填空)