课时作业(四) [必修1 Unit 4 Earthquakes]
(限时：35分钟)
Ⅰ.单项填空
1．—It's reported that over 1 billion people watched the live opening ceremony of ________ 2012 London Olympic Games on TV.
—Yes, news came as________ shock to me.
A．the; the B．/; a
C．the; a D．a; the
2．—Jack fell off the ladder yesterday，but he is all right now.
—What a lucky dog! He________himself badly.
A．should injure
B．might injure
C．should have injured
D．could have injured
3．After the earthquake，the poor girl was found________under the ruins of a church.
A．burying B．to be buried
C．buried D．being buried
4．Jack wasn't saying anything，but the teacher smiled at him________he had done something very clever.
A．as if B．in case
C．while D．though
