people who cross the Pass in cars. As there are so many people about, the dogs have to ________(keep) in a special enclosure. In winter, __________, life at the monastery is quite different. The temperature drops to -30℃and very few people attempt to cross the Pass. The monks prefer winter ____ summer for they have more _______(private). The dogs have greater freedom, ____, for they are allowed to wander outside their enclosure. The only regular visitors to the monastery in winter are parties of skiers who go there _____Christmas and Easter. These young people, who love the peace of mountains, always receive _____ warm welcome at St. Bernard's monastery.

Lesson 9 Flying cats 飞猫

Cats never fail to fascinate human beings. They can be friendly and affectionate towards humans, _______ they lead mysterious lives of their own as well. They never become submissive _____ dogs and horses. As a result, humans have learned to respect feline independence. Most cats remain suspicious _____humans all their lives. One of the things that fascinates us _____(much) about cats is the popular belief ________ they have nine lives. Apparently, there is _____ good deal of truth in this idea. A cat's ability to survive falls is based _______ fact.

Recently the New York Animal Medical Center made a study _____ 132 cats over a period of five months. All these cats had one experience_____common: they had fallen off high buildings, yet only eight of them died_______shock or injuries. Of course, New York is the _____(idea)place for such an interesting study, _______ there is no______(short) of tall buildings. There are plenty of high-rise windowsills to fall ________! One cat, Sabrina, fell 32 storeys, yet only suffered from a _________(break) tooth. 'Cats behave like __________(well-train) paratroopers.' a doctor said. _______seems that the _________(far) cats fall, the less they are likely to injure themselves. In a long drop, they reach speeds of 60 miles an hour and more. ______ high speeds, falling cats have time to relax. They stretch out their legs like ________(fly) squirrels. This increases their air-resistance and reduces the shock of impact _________ they hit the ground.

Lesson 10 The loss of the Titanic “泰坦尼克”号的沉没

The great ship, Titanic, sailed _______ New York ______Southampton ______ April 10th, 1912. She was carrying 1,316 passengers and crew of 891. Even by modern standards, the 46,000