“He’s not your servant, miss,” said Zillah,     1     had been listening to the conversation. “He’s your cousin.” "He     2     be my cousin!” cried Cathy,     3     a scornful laugh. “Father has gone to fetch my cousin from London. He’s a gentleman’s son, not a farm worker like him!” She pointed at poor Hareton,     4     clothes were old and dirty.

I was very     5     (annoy) with her and Zillah. Now Heathcliff would hear about his son’s     6     (arrive), which we had hoped to keep secret from him. And Cathy would certainly ask her father whether she had a cousin at Wuthering Heights. On our way home I explained to her that     7     her father discovered she     8     (visit) Wuthering Heights, he would perhaps be so angry with me       9     he would send me away. She could not bear to think of that, so she promised     10     (keep) her visit a secret from him.

It was Sunday, December 7, 1941. It looked like it was going to be a normal day     1     board. Just then there was a huge crashing sound from above. The ship shook     2     (violent) and the crew looked at each other in horror. Above their heads, hundreds of Japanese planes circled like eagles. They were diving down to drop bombs on Pearl Harbor. Moments later, a bomb     3     (hit) the USS Arizona.

The surprise attack came as     4     great shock to the whole nation. The next day, President Roosevelt made his famous Pearl Harbor Speech,     5     (ask) the US Congress to declare war on Japan. In response to the attack and the president's address, the US joined World War II. Today, the USS Arizona lies     6     it sank: in the middle of the Pacific Ocean.     7     (it) location is marked with a memorial shaped like a bridge, which crosses the ship's     8     (sink) remains. Nearly 80 years has passed,     9     the attack on Pearl Harbor, one of the darkest episodes in American history, will never     10     (forget).

    1    (lie) under waters across the globe are an estimated three million shipwrecks, all of     2     indicate human attempts over the centuries to explore Earth's furthest corners. While there is little land on our planet left unexplored, the vast sea bed almost     3    (remain) unknown.

Considering our limited knowledge, it's not surprising that exploration of the oceans constantly brings about discoveries in various     4    (science) fields.

First, many archaeological finds are made in shallow waters, including whole cities     5    (bury) underwater. The ruins offer precious information about the past. However, the challenges of pressure, darkness and intense cold at vast depths make     6     difficult to discover more of the past.

Amazing biological discoveries are also being made, like the barreleye living 6,000 meters below the ocean's surface. Such discoveries enable us     7    (have) a better knowledge of the capacity for life even in extreme circumstances.

Additionally, so far more new natural resources such as fire ice     8    (find) in oceans. Besides, the research conducted by China's underwater vessels helps scientists identify areas for deep-sea drilling and better understand how the sea bed was formed.

Humankind is entering a new age of oceanic discovery. Oceans will be as familiar     9     us as the land where we live through all-round international     10    (cooperate).

Chinese scientists have achieved a record rice yield of almost 23 metric tons per hectare from an     1     (experiment) field of hybrid rice in Hunan Province.

On Tuesday, Yuan Longping, a scientist at the Chinese Academy of Sciences    2    leads the nation's research in hybrid rice, proudly announced a record production of 1,500kilograms per mu (0.067 hectares).    3    (compare) with other high-yield hybrid varieties in the market, the average yield for the third-generation strain is 10 to 20 percent higher, The 90-year-old scientist was rejoicing like a child while making the announcement at a news conference, saying "I am more than excited and    4    (extreme) satisfied with the results. The results are of    5     (significant) to not only China, but the entire world. Yuan's achievement is a major contribution to    6    global fight against hunger.

For China, more rice production means greater food security. The achievement would not have been possible     7    Yuan and his team. Since the 1960s, Yuan, then a fresh university graduate, has devoted himself wholly to research on hybrid rice. In the last 60 years, he    8    (teach) generations of students.

Yuan said he still has a clear mind and hopes to work    9    he turns 100. There are lots of scientists like Yuan in every field,    10    China is to enjoy its long- term prosperity.