1. [单选题]蓝藻植物没有具鞭毛的游动细胞。( )
A. 正确
B. 错误
2. [单选题]The text is written mainly for those_____________.
A. who go to work early
B. who want to lose weight
C. who stay up late
D. who eat before sleep
3. [单选题]What is the main idea of the text?
A. Delivering bad news properly is important in communication.
B. Helping others sincerely is the key to business success.
C. Receiving bad news requires great courage.
D. Learning ancient traditions can be useful.
4. [单选题]What is most likely to be discussed in the paragreh that follows?
A. Steps to improving water use managet.
B. Ways tor redjuce the costs of builing dams.
C. Measured to dmal with worldwide water shortages.
D. Appmihes to handling the pressure on water supply.
5. [单选题]Which of the following is true?
A. The water in Texas have been reduced by 75%.
B. Most industries in the world suffer from water shortagers.
C. The underground water in Saudi Arabia might run out in 50 years.
D. Good management of water use resulted from the project in the Central Valley.
