[填空题]Located at the mouth of the Yangtze River, Shanghai is the busiest port in our country.

[填空题]Located at the mouth of the Yangtze River, Shanghai is the busiest port in our country.

[单项选择]The Virus Hunters
The mouth of the Amazon River has long been a starting place for hunters going to the jungles of Brazil. In recent years it has been, too, the headquarters for a middle-aged American couple who hunt the smallest living things and perhaps the most deadly viruses. Dr Causey and his wife have discovered more new types and more old ones in new places than all of the other search teams.
Dr. Causey insists that the couple’s success is due more to the number of viruses in the forests of the Amazon than to the skill he and his wife have developed during their eighteen years of work in Brazil.
"We have found the loveliest diseases fight in our backyard," he told me one day as we walked through a light rain along a jungle trail.
"Oh, these viruses are here all fight. There is in the jungle a great pool of disease which is carried in the blood of animals and birds. Some of the diseases can be caught by people. It may be that we shall find that the jung
A. new viruses have just been discovered
B. his discovery was a bit frightening
C. he and his wife were surrounded by harmful viruses
D. his job was exciting

[填空题]The Yangtze is the (big) （） river in our country.

[填空题]The Yangtze is the (big) ______ river in our country.

[简答题]Dear Sirs, We are pleased to recommend you Shanghai Carpet, which is available for export at present. This product has been widely sold to various markets abroad, and we believe that there is also a demand for it at your end. Now we enclose a copy of our catalogue for your reference. Please study it and let us know your comments, so that we may discuss the business possibilities.

[填空题]Mouth -to -mouth resuscitation must not be stopped for more than ______ in adults, until the victim is breathing on his own.

[填空题]Do not take mouth -to -mouth breathing unless you are certain that the victim has no pulse.

[填空题]It is about three hours’ (fly) ______ from Shanghai to Seoul.

[单项选择]

The Amazon River basin boasts the largest river system on Earth and harbors an ecosystem that is tremendously complex. Early travelers from renaissance Europe were overwhelmed by their first encounters. In 1531, Francisco Pizarro overthrew the Incan empire, removing the emperor from his throne and taking for Spain the Incan imperial treasures. A decade later his younger brother ventured east from the high plateau of the Andes Mountains in pursuit of the famous cities of gold and spices thought to be hidden in the jungle forest. Going down the river the expedition soon exhausted its supplies and a small group was sent ahead to search for food. Eight months later, this group emerged at the mouth of the Amazon, having made what would prove to be the first descent of the length of the river.
A missionary who accompanied the group sent a remarkable account of their adventures to the Pope, including mention of the great signal drums that sounded from village to village far in a
A. the sophisticated culture in the Amazon Basin
B. the view that Amazon culture derived from other cultures elsewhere
C. an "imitation paradise"
D. a simple hunting-and-gathering way of life