一、根据首字母及句意写出完整单词。
1. I'm so t after three hours' walk.
2. Jack, do you know how a balloon rises in a?
3. The hospital is n here so let's walk there.
4. — Whose jump rope is this?
— I think it b to Lisa. She has a red jump rope.
5. It's so hot so I just wear a T and a pair of shorts.
6. There are o 100 students but only 60 seats in the hall.
7. A good night's sleep can give us lots of e for the next day.
8. In class, some teachers like asking students to discuss in g.
9. On weekdays, their w hours are from 9:00 a.m. to 5:00 p.m.
10. History classes can be boring if the teacher j reads from the textbook.

一、1. tired 2. air 3. near 4. belongs 5. T-shirt 6. over 7. energy 8. groups 9. working 10. just

翻译:
一、根据首字母及句意写出完整单词。
1. 步行三个小时后，我非常______（累的）。
2. 杰克，你知道气球是如何在______（空气）中上升的吗？
3. 医院离这里很______（近），所以我们步行去那里吧。
4. ——这是谁的跳绳？
——我认为它______（属于）莉萨。她有一根红色的跳绳。
5. 天气太热了，所以我只穿了一件______（T恤衫）和一条短裤。
6. 大厅里有______（超过）100名学生，但只有60个座位。
7. 一夜好眠能给我们第二天提供很多______（能量）。
8. 在课堂上，一些老师喜欢让学生以______（小组）形式进行讨论。
9. 在工作日，他们的______（工作）时间是从上午9点到下午5点。
10. 如果老师______（只是）照着课本读，历史课会很无聊。

二、从方框中选出适当的短语，用其正确的形式补全短文。
pick sth up working day full of keep fit excuse me look like over there belong to
It's 6:30 in the morning and Jack is jogging in the park. On 1. , he always gets up early to do exercise in the park. Exercise helps him 2. . Also an hour's exercise in the morning always makes him 3. energy all day.
At that time, Jack sees a bag under a tree. He 4. and thinks, "Who does it 5. ?" He looks around and sees a man. He walks to him and asks, "6. , is this your bag?" "It 7. mine," the man says, "but mine is 8. . Look!" Jack looks in the direction (方向) he points. But there isn't a bag. So you know now, this is just the old man's bag.

二、1. working days 2. (to) keep fit 3. full of 4. picks it up 5. belong to 6. Excuse me 7. looks like 8. over there

翻译:
二、从方框中选出适当的短语，用其正确的形式补全短文。
捡起；工作日；充满；保持健康；打扰一下；看起来像；在那边；属于
现在是早上6点30分，杰克正在公园里慢跑。在工作日，他总是早起去公园锻炼。锻炼帮助他保持健康。而且早上一小时的锻炼总是让他一整天都充满活力。
那时，杰克看到树下有一个包。他捡起它，心想：“它属于谁呢？”他环顾四周，看到一个男人。他走向他并问道：“打扰一下，这是你的包吗？”“它看起来像我的，”那个男人说，“但我的包在那边。看！”杰克朝他指的方向看去。但那里没有包。所以现在你知道了，这个就是这位老人的包。

三、语法聚焦单元语法专项练习。
1. 用恰当的代词补全对话。
A: Jack, is this basketball (1) ?
B: No, it isn't (2) . (3) is here. Look!
A: Do you know who it belongs to?
B: Lisa is looking for (4) . And (5) is brown. You can ask her.
A: OK, thanks. Do you know her phone number?
B: No, but I know her brother David's. Well, this is (6) .
A: Thanks. I remember! David and Lisa share a basketball. It must be (7) . Look! The basketball has "DL" on it.

三、1. (1) yours (2) mine (3) Mine (4) hers (5) hers (6) his (7) theirs

翻译:
三、语法聚焦单元语法专项练习。
1. 用恰当的代词补全对话。
A：杰克，这个篮球是你的吗？
B：不，它不是我的。我的在这里。看！
A：你知道它属于谁吗？
B：莉萨正在找她的（篮球）。而且她的（篮球）是棕色的。你可以问问她。
A：好的，谢谢。你知道她的电话号码吗？
B：不知道，但我知道她哥哥大卫的（电话号码）。嗯，这是他的（电话号码）。
A：谢谢。我想起来了！大卫和莉萨共用一个篮球。它一定是他们的（篮球）。看！这个篮球上有“DL”（的字样）。

2. 用恰当的频度副词补全短文。
I love running! I (1) get up at 6:30 in the morning and then I (2) run for half an hour in the park near my home. I'm (3) full of energy after running in the morning. (4) , my brother runs together with me, but just after running for a few minutes, he (5) feels tired. It's three kilometres from my home to school, but I (6) run to school. On rainy days, I take the bus to school. (7) , I run for some time in the evening. But on Friday evening, I (8) run because I need to talk with my cousin on the phone. He is in China and he (9) comes back to the US, (10) once a year. Some people ask why I look so healthy. I say, "Because I love running."

2. (1) always/usually (2) always/usually (3) always (4) Sometimes (5) always/usually (6) usually (7) Sometimes (8) never (9) hardly (ever)/seldom (10) usually

翻译:
2. 用恰当的频度副词补全短文。
我热爱跑步！我（1）总是/通常在早上6:30起床，然后我（2）总是/通常在我家附近的公园跑步半小时。早上跑完步后我（3）总是精力充沛。（4）有时候，我的哥哥会和我一起跑步，但只跑了几分钟后，他（5）总是/通常就觉得累了。从我家到学校有三公里，但我（6）通常跑步去学校。下雨天，我坐公交车去学校。（7）有时候，我会在晚上跑一会儿步。但在周五晚上，我（8）从不跑步，因为我需要和我的表哥通电话。他在中国，他（9）几乎不/很少回美国，（10）通常一年一次。有些人问我为什么看起来这么健康。我说：“因为我热爱跑步。”