149.()we have finished the text, we shall start doing more revision exercises.

118.()electrons are still smaller.

A. 　 As atoms small are

B. 　 As atoms smaller as

C. 　 Small as atoms are

D. 　 Smaller atoms as are

45.In the race to the moon, who came in first?You might say the answer is Neil Armstrong, Buzz Aldrin, and Michael Collins, the crew of Apollo 11. Or you could represent for the crew of Apollo 10 , which reached the moon in May 1969 and then headed back to Earth without landing.But there is a much stranger answer to this question, depending on how much you care about humans and what your definition(定义)of reaching the moon might be. Before any people arrived at the moon, other animals had got there first. And unlike the dogs and monkeys that were made famous in early space shots and Earth orbits, the first creatures to reach the moon were a pair of tortoises , Discovery’s Amy Shira Teitel reminded us.The Soviet spacecraft (航天器) sent the animals around the moon—although not into its orbit—during a mission in the middle of September, 1968. The unmanned(无人驾驶的)craft then returned to Earth and dashed into the Indian Ocean, after which the Russians recovered the craft.A month later, Soviet scientists revealed that the spacecraft had been a tiny ship, carrying the tortoises, wine flies, meal worms, plants, seeds, bacteria, and other living matter.The tortoises, as history records, lost about 10 percent of their body weight, but had a healthy appetite when they returned to Earth. In the following checkups comparing the animals to “stay-at-home turtles used as a test control,” most things seemed normal, aside from some vaguely explained minor problems with the liver.What this all means is that, as Teitel explained, “The first living beings to see an Earthrise from the Moon were Russian tortoises. However, as far as I can tell, the animals were not named.”What happened to the Soviet spacecraft?

A. 　 It was wrecked during the mission.

B. 　 It was recovered after its return to Earth.

C. 　 It stayed in the moon’s orbit.

D. 　 It disappeared in the outer space.

25.Teachers are some of the most important professionals in the world. They are responsible___21___preparing future generations to become productive and honest citizens, who will___22___to society for the whole of their adult life.Obviously, the most common reason___23___teachers decide to teach is the ability to make a difference. There are many professions that give people the ability to have a( )___24___impact on the world and change people’s lives,___25___few professions have a direct impact on___26___a better society as teachers do. People tend to___27___their teachers for years after they finish school, for good teachers can___28___their students to become something that they___29___thought they could be, or to work___30___a field that they thought they did not___31___.Teachers are also important because they provide___32___for their students. In certain low-income areas___33___some students may not have both of their parents___34___, teachers can provide an important influence that helps their students make the right___35___, even when they are not in the classroom. Generally, teachers’impact on students can last all through their life.以下选项25题答案为()。

A. 　 or

B. 　 but

C. 　 so

D. 　 and

237.It()John and Kate who helped me the other day.

A. 　 is

B. 　 was

C. 　 are

D. 　 were

115.Neither Tom nor John()a bike of()own.

A. 　 have, their

B. 　 has, his

C. 　 have, his

D. 　 has, their

147.We don’t know what the surface of Venus might().

A. 　 look as

B. 　 look like

C. 　 look over

D. 　 look about

119."The interest()be divided into five parts, according to the agreement made by both sides." declared the judge.

A. 　 may

B. 　 should

C. 　 must

D. 　 shall

33.Teachers are some of the most important professionals in the world. They are responsible___21___preparing future generations to become productive and honest citizens, who will___22___to society for the whole of their adult life.Obviously, the most common reason___23___teachers decide to teach is the ability to make a difference. There are many professions that give people the ability to have a( )___24___impact on the world and change people’s lives,___25___few professions have a direct impact on___26___a better society as teachers do. People tend to___27___their teachers for years after they finish school, for good teachers can___28___their students to become something that they___29___thought they could be, or to work___30___a field that they thought they did not___31___.Teachers are also important because they provide___32___for their students. In certain low-income areas___33___some students may not have both of their parents___34___, teachers can provide an important influence that helps their students make the right___35___, even when they are not in the classroom. Generally, teachers’impact on students can last all through their life.以下选项33题答案为()。

A. 　 when

B. 　 where

C. 　 what

D. 　 which

188.No sooner had she got home()she tried on her new coat.

A. 　 that

B. 　 than

C. 　 before

D. 　 when

50.Vegans try to live, as much as possible, in a way that avoids exploiting and being cruel to animals.“his means following a plant-based diet. Vegans do not eat animals or animal-based products like meat, fish, seafood, eggs, honey and dairy products such as cheese. For many vegans, living a committed vegan lifestyle means not wearing clothes made from animal skins and avoiding any products which have been tested on animals.Vegans argue that suffering is caused in the production of these foods. For example, they say that, on some dairy farms, male calves(小牛)are killed because they are too expensive to keep, and cows are killed when they get older and produce less milk. As for honey, vegans say that bees make honey for bee, not for humans, and that bees’health can suffer when humans take the honey from them. Vegans be lieve that the products they use and consume should be free from not just cruelty but any exploitation of animals.The main reason for going vegan is probably that they believe animals and all other sentient(有感知能力的)beings should have the right to life and freedom. However, there are other reasons. Vegans argue that the production of meat and other animal products is very bad for the environment. They point out that a huge quantity of water is needed to grow grain to feed animals in the meat industry. The enormous amount of grain which the meat industry needs often leads to forests being cut down and habitats(栖息地)being lost. In contrast, much lower quantities of grain and water are needed to sustain a vegan diet. In addition, many vegans say that all the nutritious elements our bodies need are contained in a carefully planned vegan diet and that this type of diet helps prevent some diseases.What belief do vegans hold?

A. 　 Animals can help improve the environment.

B. 　 Animals have the right to life and freedom.

C. 　 Animal products lead to the rise of grain output.

D. 　 Animal products are far more nutritious.