缺词填空
Trees are u 1. to men in three important ways. They p 2. them with wood and other things. They give people shade in hot days ,and they help to prevent drought(干旱) and floods（洪水）.
S 3. , in many places of the world, men don’t know the third of these is the most important. They just want to make money from the trees. Some people cut down a large n 4. of trees in the forests. Usually they are too busy c 5. down trees to plant and look after new trees so the forests slowly b 6. smaller and smaller.
This does not only m 7. that men will have fewer trees. The r 8. are even more serious. For where there are trees, their roots can prevent the rain from w 9. away the soil, but if there are no trees, the rain falls on hard ground and wash away the rich top-soil (地表土). When the top-soil is gone, n 10. remains but death.
阅读表达。Less than six words.
We know the mosquito（蚊子） very well. Mosquitoes fly everywhere. They can be found almost all over the world, and there are more than 2,500 kinds of them.
No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes, she. It’s true that male mosquito doesn’t suck blood （血液）. Only the female mosquito sucks （吸） because she needs blood to lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn’t like your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just remember you are chosen. You’re different from the others!
If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly and quietly that you may not feel anything different. After she bites, you will have an itch(痒) on your body because she puts something from her mouth together with your blood. By the time the itching begins, and she has flown away.
And then what happens? Well, after her delicious dinner, the mosquito feels tired. She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, hundreds of eggs.
1.How many kinds of mosquitoes are there in the world?
_________________________________________________________
2.What kind of mosquitoes suck blood?
_________________________________________________________
3.When you are with your friends, a mosquito sucks your blood.What does it mean?
_________________________________________________________
4.How does the mosquito feel after her delicious dinner?
_________________________________________________________
5.Where does a mosquito lay eggs?
_________________________________________________________
任务型阅读。 阅读短文，根据文中信息完成文后表格。每空一词。
Do you know all birds protect themselves by always listening and watching out for danger? At the smallest sign of it, they will fly away. Birds that cannot fly are often able to swim fast, or run quickly. Some birds make themselves look bigger and more dangerous by fluffing (抖动) their feathers.
Another important protection for many birds is their colors. Their feathers often have colors that match the things around their nests (巢). Some birds change colors with the seasons. In the winter they are white to match the snow. In the summer they are brown to match the ground.
People sometimes kill birds without meaning to. When people cut down forests to build houses and factories, they destroy the homes and food of birds. If the birds have nowhere else to go and nothing to eat, they will die out.
Pollution may cause some birds to die. Birds that eat fish from polluted water get poison in their bodies. Then they cannot lay healthy eggs. New birds can't be born.
Now people protect birds passing the laws to control hunting and pollution, by setting up some specialparks where all the birds are safe from hunters, and by teaching people to care about birds rather than kill them.
How do birds 1.themselves? | By __2.__ and watching out of danger. By fluffing their 3. . By having colors that 4. the things around their nests. By ___5._ colors. |
Why do some birds 6. out? | People sometimes 7. birds without meaning to. __8.__ may cause some birds to die. |
What 9. do people take to protect birds? | By passing the laws to 10. hunting and pollution. By setting up some special parks. By teaching people to care about birds. |
根据句子意思，用括号中所给单词的适当形式填空。
1.Because of (lose) their living areas, bears have nowhere to live .
2.--Who jumps _____________ (far), Tom or Jim? --Tom does.
3.This car is one of the (visit). He is looking for it everywhere.
4.My sister agreed __________ (see)the film with me next Sunday .
5.The loud music makes me very ____________(comfortable). Would you please turn it down?
6.When a baby panda (be)born, it looks like a white mouse.
7.We should spend as much as we can (learn) English well.
8.Can you tell me these (fisherman) names ?
9.A great number of (tour) go to study birds in Zhalong every year.
10.We should prevent the flood (wash) away our houses .
Life is full of surprises and you never know how things will turn out .Sir John Gurdon is a good example of this. As a boy, he was told he was hopeless at science and finished bottom of his class. Now, aged 79, the very same Gurdon shared the 2012 Nobe Prize in Medicine with Japanese stem cell(干细胞) researcher Shinya Yamanaka.
Like so many scientists, Gurdon shows us where the power of curiosity and perseverance (坚持不懈)can lead.
At the age of 15 in 1948, Gurdon ranked last out of the 250 boys at his high school in biology and every other science subject. Gurdon’s high school science teacher even said that his dream of becoming a scientist was“quite ridiculous”.
In spite of his teacher s criticisms，Gurdon followed his curiosity and kept working hard. He went to the lab early and left later than anyone else. He experienced thousands of failures.
“My own belief is that we will, in the end, understand everything about how cells actually work,” Gurdon said.
In 1962, Gurdon took a cell from an adult frog and moved its genetic(基因的）information into an egg cell. The egg cell then grew into a clone(克隆) of the adult frog. This technique later helped to create Dolly the sheep in 1996, the first cloned mammal(哺乳动物）in the world.
In 2006，Gurdon’s work was developed by Yamanaka to show that a sample(样本）of a person’s skin can be used to create stem cells. Using this technique, doctors can repair a patient’s heart after a heart attack.
Luck favors the prepared mind Gurdon told the Nobel Prize Organization. “Ninety percent of the time things don’t work，but when they do，you have to seize(抓住）the chance.”
1. Who won the 2012 Nobel Prize in Medicine?
A. Sir John Gurdon
B. Shiny a Yamanaka.
C. Sir John Gurdon and Shinya Yamanaka
D. Gurdon’s science teacher.
2. In what order are the followings mentioned in the passage?
a. create the sheep Dolly
b. take a cell from an adult frog
c. use a person’s skin to create stem cells
d. move a frog’s genetic information into an egg cell
e. grow into a clone of a frog
A. b—a—c—d—e B. b—d—e—a—c
C. b—d—a—p—e D. b—c—d—a—c
3. What does the underlined word “ridiculous” mean?
A.无知的 B.无畏的 C.荒废的 D.荒谬的
4.According to the passage, which statement is true?
A. As a boy, he was told he was hopeful.
B. He ranked first at his high school in biology.
C. It’s impossible for the doctors to repair a patient’s heart after a heart attack.
D. In spite of-his teacher's criticisms, he kept working hard.
5. What’s the main idea of the passage?
A. Ninety percent of the time things don’t work.
B. Luck favors the prepared mind
C. Life is full of surprises.
D. How to know cells actually work.
Bears are found in Asia, Africa and America. They are very strong, with short tails and thick legs. Bears eat almost everything. They seem to enjoy meat, vegetables, fruit, milk and rice.
Bears are not quite dangerous as people imagine them to be. Like most animals, they will try to stay away from human beings. However, bears are not weak animals. Sometimes they kill hunters, for they can be very dangerous.
Bears have a good sense of smell but they have poor eyesight. They are also hard of hearing but they are very clever. They feed mainly on roots, frogs, fish and also small insects. They will sometimes kill deer and other large animals, but they seem to like small animals better.
In the cold area, bears hibernate, or go to sleep from October to April. Before they start to hibernate, they eat a lot and store fat. The mother bear has its babies, usually two, towards the end of hibernation. A large bear is much cleverer than a cat and most other animals. You may notice at the zoo how cleverly they ask for food. They sit up and hold out their paws. You would have to teach a dog such a trick but the bears learn this by themselves.
1. Like most animals, bears try to_______.
A. kill hunters
B. store fat after hibernation
C. stay away from people
D. be friendly with people
2. People imagine bears to be_______.
A. quite harmless B. very dangerous
C. very safe D. very clever
3. A mother bear usually gives birth to_______.
A. many babies B. only one
C. some of babies D. two babies
4. Which of the following not true?
A. Bears never kill large animals.
B. Bears are found in many places.
C. Bears have to hibernate in the winter.
D. Bears didn't need to be taught to ask for food
5. "They are also hard of hearing." means they__________.
A. have big ears B. cannot see
C. cannot hear well D. can hear even weak noise
