B.时空对比:此刻的差异。
你的笔友Mike从寒冷的悉尼发来了视频。请根据提示,用现在进行时描述你们此刻的不同状态。
1. It's winter in Sydney. Mike (wear) a thick coat.
2. It's summer in Harbin. I (walk) on the street in a T-shirt.
3. Mike feels cold. He (drink) hot water.
4. I am cool. I (eat) a sweet ice cream.
5. We are in different places, but we (talk) at the same moment.

1. is wearing
2. am walking
3. is drinking
4. am eating
5. are talking

本题考查现在进行时的用法，现在进行时的谓语基本结构为"am/is/are + 动词的现在分词"，需要结合主语的人称和数选择匹配的be动词：
1. 主语Mike是第三人称单数，对应be动词选is，动词wear的现在分词形式为wearing；
2. 主语是第一人称I，对应be动词选am，动词walk的现在分词形式为walking；
3. 主语He是第三人称单数，对应be动词选is，动词drink的现在分词形式为drinking；
4. 主语是第一人称I，对应be动词选am，动词eat的现在分词形式为eating；
5. 主语we是第一人称复数，对应be动词选are，动词talk的现在分词形式为talking。

A. 词汇与语法。
A Lively Morning in Harbin
It's a cool summer morning in Harbin, Heilongjiang. The sun is shining softly, and the air is fresh. Many local people and tourists 1. (enjoy) their time on Harbin's Central Street—it's one of the most famous places in the city.
It is 7:00 am now. Near the wide street, some vendors(小贩) 2. (sell) traditional snacks. A woman 3. (make) songhua eggs, a special local food in Heilongjiang. She 4. (cover) the eggs carefully with mud(泥) and leaves, and many tourists 5. (watch) her with great interest. Nearby, a man 6. (cook) fried dough twists(麻花), and the sweet smell 7. (fill) the air.
Some tourists 8. (take) photos of the European-style buildings. They 9. (look) at the beautiful buildings and talking about the street's history.
A group of children 10. (run) around happily. They 11. (watch) pigeons on the ground. An old couple 12. (sit) on a bench. They 13. (not talk) much—just watching the busy and warm street quietly.
A young guide 14. (show) the street to a group of visitors from the south. She 15. (tell) them the stories behind each old building clearly. The visitors 16. (listen) carefully and 17. (ask) her questions from time to time. Everyone 18. (feel) relaxed and happy in this lively city. Harbin is welcoming many tourists this summer.

1. are enjoying
2. are selling
3. is making
4. is covering
5. are watching
6. is cooking
7. is filling
8. are taking
9. are looking
10. are running
11. are watching
12. are sitting
13. aren't talking / are not talking
14. is showing
15. is telling
16. are listening
17. are asking
18. is feeling

本篇语篇描述的是哈尔滨夏日清晨7点当下正在发生的一系列场景动作，全部使用现在进行时，该时态的基本结构为「am/is/are + 动词的现在分词形式」，需要根据主语的人称和数选择对应的be动词：主语为第一人称单数用am，主语是单数名词/不可数名词/不定代词用is，主语是复数名词用are，结合每空的主语可得出正确形式：
1. 主语Many local people and tourists是复数，对应be动词are，enjoy的现在分词为enjoying
2. 主语some vendors是复数，对应be动词are，sell的现在分词为selling
3. 主语A woman是单数，对应be动词is，make的现在分词为making
4. 主语She是单数，对应be动词is，cover的现在分词为covering
5. 主语many tourists是复数，对应be动词are，watch的现在分词为watching
6. 主语a man是单数，对应be动词is，cook的现在分词为cooking
7. 主语the sweet smell是不可数名词，视为单数，对应be动词is，fill的现在分词为filling
8. 主语Some tourists是复数，对应be动词are，take的现在分词为taking
9. 主语They是复数，和后文的talking并列，对应be动词are，look的现在分词为looking
10. 主语A group of children是复数，对应be动词are，run的现在分词为running
11. 主语They是复数，对应be动词are，watch的现在分词为watching
12. 主语An old couple指代两个人，视为复数，对应be动词are，sit的现在分词为sitting
13. 主语They是复数，和后文的watching并列，现在进行时否定形式为aren't/are not talking
14. 主语A young guide是单数，对应be动词is，show的现在分词为showing
15. 主语She是单数，对应be动词is，tell的现在分词为telling
16. 主语The visitors是复数，对应be动词are，listen的现在分词为listening
17. 和前文的are listening并列，共用be动词are，ask的现在分词为asking
18. 主语Everyone是不定代词，视为单数，对应be动词is，feel的现在分词为feeling