2.感到疲劳_________________________

1.打破世界记录______________________

5.The Three Gorges Dam will be finished ________2009.(到2009年为止)

4.He has walked ________ two hours.

3.Mount Tai is located ________ Shandong province.

a has many world records ________ its beautiful buildings and structures.

2.He has been a teacher ________ he was 18.

6.The snow on the ground is ____________________(大约半米厚).

4.Beijing is __________________________(数千公里远).

a is over _____________________(5，000年的历史).

3.Tom is ___________________________(比我小两岁).

2.The mountain is ________________________(648米高).