B1 Read the sentences below and tell what each it is used for. Write time, date, weather or distance in the blanks.
1 It was snowy yesterday afternoon.

2 It is 27 November today.

3 It is about eight kilometres from his company to his home.

4 It is 10:30 p.m. Timmy is sleeping.

5 It is warm all year round in this city.

6 It is three miles to the railway station.

7 It is a quarter past nine. I have to go now.

8 It is 23 March today. It is my father's birthday.

9 Is it still raining now?

10 It is four years since I last saw him.

11 It is 29 February tomorrow. It is very special.

12 Is it a long way from Sunshine Park to Star Shopping Mall?

1. weather
2. date
3. distance
4. time
5. weather
6. distance
7. time
8. date
9. weather
10. time
11. date
12. distance

本题考查it指代时间、日期、天气和距离的用法，需根据句子内容判断it的指代对象：
1. 句中snowy描述天气，it指代天气；
2. 句中27 November是具体日期，it指代日期；
3. 句中eight kilometres是距离，it指代距离；
4. 句中10:30 p.m.是具体时间，it指代时间；
5. 句中warm描述天气，it指代天气；
6. 句中three miles是距离，it指代距离；
7. 句中a quarter past nine是具体时间，it指代时间；
8. 句中23 March是具体日期，it指代日期；
9. 句中raining描述天气，it指代天气；
10. 句中four years是时间时长，it指代时间；
11. 句中29 February是具体日期，it指代日期；
12. 句中a long way是距离，it指代距离。

B2 Rewrite the sentences below with it.
1 They arrived in Hong Kong in the afternoon.
when they arrived in Hong Kong.
2 Garden Town is more than 230 kilometres from Water Town.
from Garden Town to Water Town.
3 Today is 2 January. Simon went to a concert with his parents.
today. Simon went to a concert with his parents.
4 Autumn is very cool.
in autumn.
5 Chengdu is far from Hangzhou.
from Hangzhou to Chengdu.
6 He finished his homework at 8 p.m.
when he finished his homework.
7 Tomorrow is 16 September. He is going to attend his cousin's wedding.
tomorrow. He is going to attend his cousin's wedding.
8 They went fishing on a sunny day last month.
when they went fishing last month.
9 The temperature is only $5° C$ today. Put on your coat.
today. Put on your coat.
10 Spring is very windy.
in spring.

1. It was in the afternoon
2. It is more than 230 kilometres
3. It is 2 January
4. It is very cool
5. It is far
6. It was at 8 p.m.
7. It is 16 September
8. It was a sunny day
9. It is only $5° C$
10. It is very windy

本题考查it作形式主语的用法，it可用来指代时间、距离、日期、天气、温度等内容，改写时需保持时态与原句一致，使句子结构符合英语表达习惯：
1. 原句描述过去的时间，用一般过去时，it指代时间，改写为对应句式；
2. 原句描述距离，用一般现在时，it指代距离，改写为对应句式；
3. 原句描述日期，用一般现在时，it指代日期，改写为对应句式；
4. 原句描述天气，用一般现在时，it指代天气，改写为对应句式；
5. 原句描述距离，用一般现在时，it指代距离，改写为对应句式；
6. 原句描述过去的时间，用一般过去时，it指代时间，改写为对应句式；
7. 原句描述将来的日期，可用一般现在时表将来，it指代日期，改写为对应句式；
8. 原句描述过去的天气，用一般过去时，it指代天气，改写为对应句式；
9. 原句描述温度，用一般现在时，it指代温度，改写为对应句式；
10. 原句描述天气，用一般现在时，it指代天气，改写为对应句式。