(　　　)1. —Have you decided __________ to Xi'an?
—Yes. I'll go there by train. It's much cheaper than by plane.
A. when to go
B. how to go
C. where to go
D. whom to go

B

(　　　)2. They were __________ busy __________ with each other __________ the time.
A. too; talking; to forget
B. so; talking; that they forgot
C. so; to talk; that they forgot
D. too; to talk; to forget

B

(　　　)3. Did you know __________?
A. what in the bag was
B. what is in the bag
C. what in the bag is
D. what was in the bag

D

(　　　)4. —Must I finish my composition right now?
—No, you __________. You can hand it in tomorrow.
A. can't
B. mustn't
C. might not
D. needn't

D

(　　　)5. For a time his grandmother found __________ hard to accept his new idea.
A. it's
B. that was
C. it
D. that

C

1. Food may be in the form of __________ (药丸) if we live on Mars.

pills

2. It's said a famous film star will come to our town, but I'm __________ (not sure) about that.

unsure

3. My grandma is about 80 years old, sometimes she is __________ (健忘的).

forgetful

4. The old lady broke her leg when she climbed the __________ (楼梯).

stairs

5. He found his flat was in a __________ (完全的) mess.

complete

1. The singer, together with her family, __________ for Paris, so there's nobody in her home now.

has left

2. It's cold today. Put on more clothes, or you __________ a cold.

will catch

3. His parents __________ in Beijing for two weeks last year.

stayed

4. Who __________ at the meeting now? His voice is so exciting.

is speaking

5. No news often __________ good news.

means

In 2015, 23 robots from all over the world competed in California, for a $2 million prize in the DARPA Robotics Challenge. Teams have been working on these robots for three years—their challenge was to make a robot that can help after an earthquake or other natural disasters. The rules are simple—each robot has one hour to score eight points for different tasks, which include driving a car or opening a door.Every team has people in a separated garage (车库), sitting around big screens and controlling their own robots. Across the garage stands Carnegie Mellon's bright red robot, CHIMP. “It has arms and hands but it moves around on these tracks,” said Tony Stentz, team leader of Tartan Rescue Team. “CHIMP can go from upright to all - fours in just a few seconds. Weighing 440 pounds, CHIMP seems certain to win in the competition,” he said.During the early drive, CHIMP almost went into the barricade (障碍物) when it was slowly getting out of the car. But once it made out and opened the door, it dropped to the ground in the doorway. For all the other teams, a fall means that humans have to step in and get the robot back on its feet. But about five minutes later, CHIMP got back up without any help.The team didn't get any points for that move, but getting back from a fall would come in pretty handy in a disaster area. And CHIMP still completed all the tasks in under an hour. “What a bang - up (极好的) job!” Tony Stentz said as he received handshakes and high - fives (举手击掌) from the crowd.Though CHIMP was clearly the winner on the first day of the finals, it ran into lots of trouble on the second day and ended up in the third place. Team KAIST, from South Korea, took the $2 million prize; Florida - based Team IHMC Robotics came in second and won $1 million. “After two days, hopefully we're all a step closer to making humans safer after disasters,” added Tony Stentz.(　　　)1. How long did it take the teams to prepare for the DARPA Robotics Challenge in California?A. One hour.B. Three days.C. Two years.D. Three years.(　　　)2. What ability do the 23 robots have?A. Sitting around the screens and scoring points.B. Moving across the garage and opening the door.C. Helping after an earthquake or other natural disasters.D. Driving a car and standing up without any help.(　　　)3. Which of the following is true about CHIMP according to the passage?A. It has arms and hands and it can move around like humans.B. It can go from upright to all - fours in just a few minutes.C. Minutes after it dropped to the ground, it got back up by itself.D. It is so clever that it has won the $2 million prize for the team.
(　　　)4. Which of the following can we infer according to the passage?
A. Tony Stentz has more confidence to make people safer after disasters.
B. Team KAIST, from South Korea, will win the Nobel Prize in future.
C. Carnegie Mellon's bright red robot will be in service after disasters soon.
D. The aim for the teams to take part in the competition is to make money.

1—4 DCCA