If it _________ not for all the cars and passers-by with cameras, you _________ think you have magically traveled back to the 14 century.

A. is …will????????????? B. had been… would ????????????? C. were… will?? ????????????? D. were…might

Most people in the world like to enjoy nature. Travel is one of the most popular ways. Nowadays modern transportation can take people everywhere. But people who lived before the 1880s probably would not travel very far. They would not have time to travel far from their work. Anyone who travelled  36  would usually walk or ride a horse. But in Germany a man named Karl Benz had an idea that  37  the world in a dramatic way. In 1885, he made  38  . His car had three wheels,  39  most cars today. The car could only go  40  16 kilometres an hour.
At around the same time, the man  41  his first car in Detroit, America is called Henry Ford. Detroit is now still famous all over the world as the centre of American car-making.
Cars were very few and only  42  people could buy them.  43  , in England cars were thought to be  44  at that time, so for a few years someone  45  walk in front of every car  46  a red flag! This was to make sure that the car did not go too fast and hurt  47  .
In the 1910s, Henry Ford had  48  a better kind of car called the Model T Ford and he built a  49  where the cars could be made  50  . In this way the car could be made  51  and the cost was less and more and more people could  52  them. But there was still a problem  53  all the cars were black. That was because it was 54  to produce cars that were all the same color. Now, of course, you can buy cars in all  55  .

The road in front of our school is _____ and is closed to all the cars.

A vast dust storm that blew in from the deserts of Australia’s red centre has blanketed the country’s largest city and eastern coast in a red fog，causing widespread traffic chaos and severe flight delays.

      Residents from Sydney in New South Wales to Canberra inland and towns in southern Queensland awoke to a red sky and greatly reduced visibility after the country’s worst dust storm in 70 years blew in overnight. The Sydney Harbor Bridge and Opera House were covered in the red fog and hundreds of people were reported to have breathing problems. Children，the elderly and those suffering from asthma (哮喘) or heart or lung diseases were advised to stay indoors ,as even healthy adults reported "itchy throats" and a metallic aftertaste in their mouths after walking through the thick fog.

 Commuters used face masks，originally intended to protect them from the spread of swine flu, to hurry across the blocked streets on their way to work. Some schools were closed and sports activities were called off as the conditions pushed air pollution levels to 1500 times their normal levels – the highest on record.

 Passengers at the busy Sydney Airport faced delays of up to six hours for international flights and three hours for domestic trips，and even some international flights were cancelled as visibility was reduced to just a few feet.

 Locals，phoning radio stations to express their shock at the red dawn.” It’s like a nuclear winter morning，" tourist Peter Wilson told Daily Telegraph, "It is so terrible." adding that when he awoke the sky was "bright red" and "all the cars were covered in dirt".

The dust hanging over Sydney had largely cleared by midafternoon, although national carrier Qantas said severe delays would last all day because of direction-changed and late-running flights.

Some of Man's closest relatives in the animal kingdom are under serious threat because of human activity, according to a recently published report.
Almost one in three of all apes and monkeys are now considered to be in danger of dying out and disappearing from our planet, if action is not taken soon.
The report, which was produced for the World Conservation Union (WCU), shows that 114 of the world's 394 kinds could be lost forever, and the main reason they are threatened is the continuing loss of forests where most of these animals live. In addition, illegal wildlife trade, climate change and commercial（商业的）hunting for meat are also endangering them.
What's more, the problem is getting worse. The number of species on the organization’s Red List has increased by 3 to 25 since 2005.
Russell Mittermeier, the main researcher of the WCU report, said, "You could fit(安置) all the surviving members of these 25 species in a single football stadium. So the problem is obviously urgent."
The scientists, who drew up the Red List, believe that the situation is now so bad that if action is not taken immediately, it will result in primate(灵长目动物) species dying out - something which has not happened in over a century.
The loss of habitat caused by the clearing of forests for wood, farmland and fuel continues to be the main reason for the decreasing number of primates, according to the report, and the problem was most severe in Asia.
The loss of forest trees is also responsible for 20 percent of all greenhouse gases - more than all the cars, trucks, trains and airplanes in the world combined.
【小题1】What is the main subject of the report discussed in the text?