As angry crowds got into the streets fighting for their basic rights, the local government________the police to keep order.

       A．called in   B．brought about   C．picked out D．paid back

 He has been out of work for three months; as a result, he has to ____on family expenses by one-third.

  A. cut out              B. cut down          C. cut up          D. cut off

Many new workers______and in six month they will be sent to build a new railway.

       A．are being trained     B．are training          C．will train D．will be trained

I suggested to my mother that she_______a drawing club after her retirement form teaching.

       A．join   B．joins  C．joined       D．would join

27．It was the President himself______ opened the door．

       A．who        B．when           C．which     D．where

 —I believe Tom to be a great businessman like Bill Gates in the future.

    —Why do you think so?

    —Because he is ________ in business.

A. as hungry as a lion                               B. as sharp as a spear

C. as busy as a bee                                           D. as sly as a fox

 Only by_______each other can we achieve our goals .

A. teaming up with    B. catching up with    C. putting up with    D. keeping up with

B

Every year 2. 2 million tons of oil are put into the ocean and this oil has terrible effects on ocean life, including the coastlines where the off washes up onto shore. Some of the largest spills(溢出) in history were caused by oil tankers(油轮) running into each other or by an oil tanker sailing into shallow water and hitting the bottom of the ocean.

After these spills, officials try to discover who or what was at fault to help prevent similar accidents in the future.

One of the worst oil spills in history happened along the Alaskan（阿拉斯加） coastline in 1989. In this accident, 42,000 tons of oil spilled from a tanker which resulted in terrible damage to this sensitive natural area. In this spill, the tanker's captain, who was tired from overwork and drinking alcohol, had gone to take a rest. He gave control of the ship to the third mate. The third mate was unfamiliar with the path the ship took, and he ran the ship onto a natural underwater rock wall near the Alaskan coast. Damaged by the rock, the ship leaked(泄漏) oil out into the ocean. More than 1,600 kilometers of coastline were affected by the oil spill. Some scientists who studied nature in the area guessed that 580,000 birds and 5,500 others died when the oil covered their skin. As well, smaller shellfish and other sea creatures were later eaten by seals, whales, and other animals.

The most oil ever spilled was in 1990. As part of the Iraq war plan, 900,000 tons of oil were let out into the Persian(波斯的) Gulf by Iraq. The oil also damaged 650 kilometers of the coastline of both Kuwait and Saudi Arabia. In some places, oil on the water was 43 centimeters thick. Water birds, water plants, and baby fish were all seriously affected. The long-term effects of this act on the food chain in the area are bound to（肯定会） cause problems far into the future.

45. Oil spills have terrible effect on________.

A. ocean life                                             B. the coastline

C. both ocean life and the coastline             D. the bottom of the ocean

46. Why did the third mate run the tanker aground(搁浅地) in this accident?

A. He was tired.                                        B. He did not know the area well.

C. He was drunk.                                      D. He was talking on the phone.

47. According to the writer, ________.

A. the accident along the Alaskan coastline was the worst oil spill in history

B. Iraq poured oil into the the Persian Gulf on purpose

C. the effects of Iraq’s act in the Persian Gulf War have been seen fully

D. oil put into the sea by Iraq in the war was the worst accident in history

48. Which of the following is the best title for this text?

A. The Worst Oil Spill                               B. Pollution

C. The Persian Gulf War                                   D. Oil Spill

 Our goods with a (an) ________of colors and patterns can meet the demand of customers at different levels.

A. variety                     B. category        C. amount              D. species    

I’m waiting for the mail. Do you know _____ it will arrive?

A. when         B. where        C. how                  D. what