Feeling blue about world ? “Cheer up.” Says science writer Matt Ridley.”The world has never been a better place to live in, and it will keep on getting better both for humans and got nature.”
Ridley calls himself a tat ional optimist—tactical .because he’s carefully weighed the evidence optimistic .because that   offence shows human progress to be both unavoidable and good .And this is what he’s set out to prone from unique point of view in his most recent book. The Rant anal Opting  .He views mankind as grand enterprise that .on the whole .has done little but progress for 100.000 years. He backed his finding with hard gathered though years of research.
Here’s how he explains his views.
Shopping fuels invention
It is reported that there are more than ten billion different producers for sale in London alone. Even allowing for the many people who still live in poverty .our own generation has access to more nutritious food .more convenient transport .bigger houses, better ears .and of course, more pounds and dollars than any who lived before us .This will continue as long as we there things to make other things, This more we specialize and exchange, the better off we’ll be.
2) Brilliant advances
One reason we are richer, healthier, taller, cleverer, longer-lived and freer than ener before is that the four most basie human needs -food, clothing, fuel and shelter- have grown a lot cheaper. Take one example. In 1800 a candle providing one hour’s light cost six hours’ work. In the 1880s the same light from an oil lamp took 15 minutes’ work to pay for. In 1950 it was eight seconds. Today it’s half second.
3) Let’s not kill ourselves for climate change
Mitigating(减轻) climate change could prove just as damaging to human welface as climate change itself. A child that dies from indoor smoke in a village, where the use of fassil-fuel(化石燃料) electrieity is forhidden by well meaming members of green polucal movements trying to save the world, is just as great a tragedy as a child that mes in a flood caused by climate change. If chmaic change proves to be xxxx, but cutting carbon canses realparn, we may well find that we have stopped a nose bleed by putting a tournquet(止血带) around our necks.
【小题1】What is the theme of Ridley’s most recent book?

When you travel in South America, you’d better pay attention to the following three kinds of dangerous South American animals.

Piranhas（水虎鱼）

Although only a small number of piranhas are considered to be dangerous to humans, the red-bellied piranha is definitely one of those. Evidence has shown that a large group of piranhas can absolutely eat a herd of large animals crossing the river, leaving only bones. This fish lives in the freshwater streams of South America, and they can smell the blood from far away and launch attacks swiftly. It is said that they are only dangerous to humans if the water volumes are less and lower.

Anacondas（水蟒）

This South American monster of a creature often appears in the films or your nightmares！They have weighed over 230 kilograms. It is often considered to be the biggest snake in the world. You certainly don’t want to get caught alone with this snake due to its method of attacking and killing its victim. It is indeed a remarkably different brand of snake type as it regularly coils（缠绕）around all over its target, increasing the pressure until eventually its victim dies. Its jaws are powered by large muscles that produce enough power for its over 100 sharp teeth to pass through the thick skin of an crocodile. They don’t have poison. Sometimes they prefer to camouflage themselves so they look like their surroundings and swiftly draw back when humans are near.

Golden Poisonous Frogs

The golden poison frog might be the most-deadly of the South American animal, which is protected by means of poison. This very small frog, less than 55 mm in length, packs enough punch（效力）to take down a pair of African bull elephants. This apparently harmless frog has always been known to have killed people who have touched it directly. It’s also been noted that chicken and dogs have died by contacting things on which a golden poison frog had wandered! In intense colors, they normally look attractive to their targets.

1.What can we learn about piranhas from the passage?

A. Piranhas are the most dangerous animals.    

B. Piranhas like to live in the deep seabed.

C. Piranhas may attack human beings when the water level is low.

D. Piranhas only attack human beings when they cross the river in groups.

2.How does an anaconda kill its victim according to the passage?

A. It often uses its poison to kill its victim.

B. It often uses its strength to kill its victim.

C. It kills its victim mainly using its powerful teeth.

D. It kills its victim with the help of other snakes.

3.The underlined word “camouflage” in Paragraph 3 means “________”.

A. hide itself by appearing like the surroundings

B. terrify and capture the enemy by making much noise

C. move around to search for delicious food

D. give off harmful gas to kill the targets

4.Chicken and dogs are mentioned in Paragraph 4 to show that ________.

A. no animals can survive the poison of the golden poison frog

B. they like to wander along the path of the golden poison frog

C. the golden poison frog likes eating them most      

D. the poison of the golden poison frog is deadly

Jeanne Calment, a French woman, become a record breaker on 17 October 1995, when at the age of 120 years and 238 days, she became the longest-lived human being on record. A Japanese man died in 1986 at the age of 120 years and 237 days.
Jeanne Calment lives in a small old people’s home in the south of France, her husband, her only child and her grandson have all died. She is nearly blind and deaf and is always in a wheelchair, but her doctor describes here as being “more like a 90-year-old in good health” than someone of 120. She still has a lively sense of humor. When asked on the 120th birthday what she expected of the future, she replied, “A very short one.” She also remarked that she thought the good Lord had forgotten all about her.
So what is the key to a long life? According to some doctors, diet, exercise and no smoking are the three important factors. Jeanne Calment has followed two of the tips. She has always eaten a healthy diet, and she used to do exercises every day until she broke her leg at the age of 115. However, until recently she drank two glasses of strong red wine a say, and she does smoke (now only a little). Besides, Jeanne Calment might have got very good genes from her parents. Her father lived to the age of 94 and her mother to 86.
A local lawyer bought her house when she was 80 under an agreement that he would pay her some money every year until her death. It must have seemed a good move at her age, but so far the lawyer has paid her at least three times the value of the house. Every year on her birthday Jeanne Calment sends him a card saying: “Sorry, I’m still alive!”
【小题1】 How does Jeanne Calment feel about her old age?