A man looking at his Smartphone while walking across a railway    1     (have) a close knock on Oct 22. He was so    2    (absorb) in his Smartphone that he didn't see a train approaching until it brushed past him,    3    (throw) him to the ground. This should serve    4    a warning that people should be aware of their surroundings, especially    5    crossing roads.    6    (lucky), the man survived, but the incident forced the driver     7    (stop) the train. An l8-minute delay followed the incident,    8    led to a break in the running of other trains on the route.

The Smartphone    9    (addict) has spread like an infectious disease. It's evident that it will do great harm to society. What's even    10    (bad),some addicts become impatient with relatives and friends. Some people blame the Smartphone for the sad story, yet in fact people's weakening self-control and self-discipline are to blame.

On August 14, 1996, a tiny drop     1     a very toxic（有毒的）chemical called dimethyl-mercury（二甲基汞）fell onto the left hand-of Karen Wetterhahn, a toxicologist and professor of chemistry at Dartmouth College. Wetterhahn was an expert on     2     toxic metals cause cancer. When the poisonous drop fell onto her hand, she wasn’t     3     (worry); she was wearing protective gloves.

    4     (unfortunate) the dimethyl-mercury went through her glove. After a while, Wetterhahn     5     (have) difficulty walking and speaking. After three weeks, she was in a state of deep unconsciousness. Karen Wetterhahn died five months later. She was 48 years old, a wife and mother of two.

You might say that a toxicologist studies substances that lead to     6     (die). But toxicology is also about saving lives. What can kill, can cure. Medical     7     (research) such as Weterhahn risk their lives daily for the benefit of others. Their work is dangerous, but it has the potential     8     (save) lives. In memory of Wetterhahn’s life and work, Dartmouth College created the Karen Wetterhahn Memorial Award. The award     9     (give) to female science students     10     receive money to continue their scientific research.

Disaster struck in the town of Redbrooke late last night when the Palmer Court apartment block that was built recently     1     (catch) fire and was completely destroyed.

It was just after 2:00 am when many of the residents in the building were woken by     2     strange smell of smoke. The firemen arrived with no delay to help to withdraw the residents from the building and deal with the fire.

The fire spread rapidly through the building and the rescue     3     (operate) had to be carried out quickly     4     (save) the forty-three residents inside. Twenty-nine people were taken to Redbrooke General Hospital, suffering from smoke inhalation (吸入) and slight     5     (burn), but it is expected that they will be discharged later today. The     6    (remain) fourteen people were withdrawn with no injuries from the building.

The firemen battled with the fire until 7 o'clock this morning but     7     (be) unable to save the building. The residents will be provided with accommodation     8    (temporary). An investigation is being carried out to determine the cause of the fire. At present,     9     is suspected that the fire happened because the electrical wiring system failed to function normally,     10     would explain why so many flats were affected at the same time.

Sammy   Armstrong   was   driving   to   his office   when   he     1    (notice)   a car was stuck on railroad tracks. Then he heard a train whistle. Sammy threw down his sunglasses and keys and ran toward the car.    2    elderly man, Jean Papich, eighty­four, sat in the driver’s seat,    3     (turn) the key and hitting the gas. His wife, Marion, seventy­eight, was looking     4    (nervous) at him. Then Sammy walked    5    the car and pushed it forward, but his boots slipped on the warm asphalt (沥青).He could see the train approaching fast.

It might be    6    (easy)to push the car backward, Sammy thought. He ran around to the front to the vehicle and shouted at Jean     7    (put)the car in neutral(空挡). Sammy could feel the ground trembling under his feet. He put his boots against the track and pushed forcefully. Finally, the car rolled off the tracks. When Sammy looked up, the train was just a couple of     8    (foot )away. Sammy, shocked and     9    (speech), went back to work as the crowd gathered at the scene.

Weeks later, Marion called to thank Sammy. He responded, “I just did     10    I had to do.”