二、根据句意，用方框中所给单词和词组的正确形式填空
full of smile work on a master of landscape put up
1. The scientists are still how to solve this problem.
2. Chinese people like to paper-cuts at home at the Spring Festival.
3. The young mother looked at her baby, .
4. If you practise hard, you will be paper-cutting.
5. The classroom is students.
6. The artist is especially (尤其) good at Chinese paintings.
full of smile work on a master of landscape put up
1. The scientists are still how to solve this problem.
2. Chinese people like to paper-cuts at home at the Spring Festival.
3. The young mother looked at her baby, .
4. If you practise hard, you will be paper-cutting.
5. The classroom is students.
6. The artist is especially (尤其) good at Chinese paintings.
答案：1. working on
2. put up
3. smiling
4. a master of
5. full of
6. landscape
2. put up
3. smiling
4. a master of
5. full of
6. landscape
解析：
1. 本句表达科学家正致力于解决问题，work on有“致力于、从事”之意，句中已有are，需用现在进行时，故填working on。
2. 句意为中国人春节喜欢在家贴剪纸，put up表示“张贴”，like to后接动词原形，故填put up。
3. 此处需要伴随状语说明妈妈的状态，smile的现在分词smiling可作伴随状语，表达“面带微笑”，故填smiling。
4. 句意为努力练习会成为剪纸能手，a master of表示“……的大师/能手”，符合语境，故填a master of。
5. 本句表达教室充满学生，full of表示“充满、满是”，符合语境，故填full of。
6. landscape paintings是固定表达“山水画、风景画”，符合句意，故填landscape。
2. 句意为中国人春节喜欢在家贴剪纸，put up表示“张贴”，like to后接动词原形，故填put up。
3. 此处需要伴随状语说明妈妈的状态，smile的现在分词smiling可作伴随状语，表达“面带微笑”，故填smiling。
4. 句意为努力练习会成为剪纸能手，a master of表示“……的大师/能手”，符合语境，故填a master of。
5. 本句表达教室充满学生，full of表示“充满、满是”，符合语境，故填full of。
6. landscape paintings是固定表达“山水画、风景画”，符合句意，故填landscape。