Unit 11.He is so devoted to his research that it never occurs to him that he willsoon have to retire.2.Many people have observed that, without effective checks, we all havea tendency to abuse our power.3.Some countries refuse to get involved in this dispute and they resentany foreign interference.4.The control of sand storms will involve a tremendous amount of workand money.5.You have to take the local conditions into consideration when youapply these technologies.6.All applicants will have to fill out these forms and mail in anapplication fee of 50 dollars.7.Based on his careful observation of children’s behavior, he came to theconclusion that learning is a natural pleasure.8.In a country of many nationalities, ethnic harmony requires verycareful handling.9.The government is determined to punish all the corrupt officialsinvolved.10.C heating at/on exams does not occur very often. But when it does, theschool takes a very tough position.Unit 31.They all stretched their necks to see what was happening, as if pulledby an invisible string.2.We got out of the car to stretch a little. In front of us was a beautifulstretch of open land.3.They talked for hours at a stretch, but they failed to settle theirdifferences.4.For all the warm weather, fresh air and delicious food, her health stilldid not recover.5.One glance at the car, and he knew that it was beyond repair. Helooked ahead and found the desert stretching as far as the eye could see without a soul in sight. He knew he was in a terrible fix.6.Wu Song swung his stick at the tiger with all his strength. But the sticksnapped and the tiger was unharmed. In his panic, he had hit the tree nearby.7.I am terribly fond of the pictures you snapped in Russia, especially theone showing the Russian coachman sitting by the Black Sea with his supper in a cloth on his knees.8.“You can’t just let it go at that.” I tried to plead with him.“It is none of your business,” he snapped.9.He snapped his briefcase to, stood up and said, “Then it’s all settled.”10.He was standing in front of his house on a hill, only about a hundredmeters apart/away from the wharf when the tsunami came.Unit 51.Building a house is no joking matter. You have to check carefully atevery step.2.His troops successfully checked the advance of the enemy whoseoriginal intention was to make a surprise attack.3.I really wanted to refute his argument, but I checked myself because Ithought it was not the right occasion.4.Rachel Carson is famous for devoting all her life to the cause ofenvironment protection.5.In some ways we are still ignorant of the potential harm of these damsand reservoirs. They might cause irrevocable changes in the environment.6.There must be a set of checks and balances so that no important policyconcerning national interests can be made by one person without the consent and knowledge of the people.7.To compete successfully we have to adjust to new conditions. Thesecolorful garments, for example, are specially designed. They are intended for youth market.8.We teachers cannot be excused for our lack of concern for students’health.9.He said that he would rather die than be confined to bed all his life andisolated from the outside world.10.A mass protest swept the country and he was caught in a crossfirefrom both the right and the left.Unit 61.We all know that cocaine is addictive. So is heroin. Nut actually powerand money are addictive too. Those who get addicted to them are really vey sick people.2.Scientists have been advocating returning reclaimed land to rivers,lakes, marshes and meadows.3.According to many economists, it is not always a good idea for thegovernment to bail out financially insolvent companies. Sometimes, a company on the verge of bankrupt is better allowed to go bankrupt. 4.He has been caught red-handed. There is indisputable evidence that awhole chapter of his book was bodily lifted from a book written by another professor.5.Their government long since passed a law to ban the import andexport of rare species of birds and animals. But the law is not easy to enforce.6.It is hard to make young people believe nowadays that there was atime when Chinese women were banned from wearing skirts. Jeans, foreign movies and Western music were all forbidden.7.In the darkness our ship hit a hidden rock, which left a gaping hole inthe bottom. We all tried desperately to bail out the water, but the boat was sinking fast. Luckily a fishing boat was nearby and saved us from drowning.8.The demonstrators demanded that economic sanctions be liftedimmediately because they usually only hurt ordinary, innocent people.9.At the meeting, both the advocates and opponents gave strongarguments, but most participants favored having further reforms placed on the agenda immediately.Unit 81.It is an utter waste of money and precious land resources. They mustbe out of their minds to turn such fertile farmland into golf courts for a few rich people.2.It is utterly impossible to have complete safety with nuclear waste.Sooner or later some problem will occur. So unless we are ready to accept the inevitable, we must not rush to a decision.3.She was under severe attack throughout the meeting, but she did notutter a word. She had decided to hand in her resignation right away. 4.Many people are lured to go after fancy titles out of vanity, and I amalso guilty of this.5.As we were warned in advance, the inflation rate in the first quarter ofthis year was still on the rise. This amounted to a drop in people’s income. But every cloud has its silver lining. Consumption was also on the rise.6.Keep in mind that we may be able to prevent young people fromspeaking their mind, but we can never succeed in making them stop thinking.7.Anybody in his right mind knows that we need both freedom anddiscipline. We either have both or neither. Therefore students cannot have their way unconditionally.8.She warned those countries in advance way back in the 1990s that ifthey did not get rid of their economic bubbles, their economics would face a hard landing.9.What I have in mind id to buy a house in the suburbs as I loathe theheavy pollution as well as the hustle and bustle of the big city. If because of this I cannot go shopping in Wangfujing every Sunday, that’s just too bad.10.M any people there seem to be indifferent to the coming election. Rightnow they just hope the dark clouds of war will clear away so that they can live in peace.。