相關(guān)習(xí)題
 0  137471  137479  137485  137489  137495  137497  137501  137507  137509  137515  137521  137525  137527  137531  137537  137539  137545  137549  137551  137555  137557  137561  137563  137565  137566  137567  137569  137570  137571  137573  137575  137579  137581  137585  137587  137591  137597  137599  137605  137609  137611  137615  137621  137627  137629  137635  137639  137641  137647  137651  137657  137665  159627 

科目: 來源: 題型:

【題目】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(干細(xì)胞) researcher Shinya Yamanaka.

Like so many scientists, Gurdon shows us where the power of curiosity and perseverance (堅持不懈)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(哺乳動物)in the world.

In 2006,Gurdon’s work was developed by Yamanaka to show that a sample(樣本)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。﹖he 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

d. 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

3What does the underlined word “ridiculous” mean?

A.無知的 B.無畏的 C.荒廢的 D.荒謬的

4According 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.

查看答案和解析>>

科目: 來源: 題型:

【題目】用所給詞的適當(dāng)形式填空。

1Let go first; (they)

2I like a bus to school. (take)

3A plane is than a train. (fast)

4Our school has two students. (thousand)

5 a lot for your help. (thank)

查看答案和解析>>

科目: 來源: 題型:

【題目】完形填空

Jessie was driving home happily when a truck went past her car. The driver was moving much too fast. When Jessie neared her exit(出口), she ___ something and stopped her car to the of the highway(高速公路). An accident had happened on the left side. The truck had ______ a car, but the driver was gone. Jessie thought that the people inside must be badly ______ and she should help them as much as she could.

Not thinking of the _____, Jessie hurried to the other side of the road, though people dared(敢)cross such a busy road. the car, she saw five people —two women and three children. Jessie was ______ to see all of them moving.

Jessie pulled one of the car doors. It wouldn’t . She went to the next door. ______, she couldn’t move it. She almost thought that all was lost before she got one of the doors to open a little. “Please get the children out,” one of the women called. Jessie ____ a little boy from the car and moved him to a ____ place. Then she went to bring the other children to safety.

After the last child was out of the car, Jessie thought of the box in _____ car. She had something in it that could help get that door open. So she went back to get the box quickly. As Jessie was _____ on the door, the driver said, “Not many people would do what you’re doing.” “You just take it easy, and I’ll have you _____ soon,” said Jessie. Shespan> was as good as her word. As soon as she helped the women out of the car, it caught fire.

【1】A. did B. saw C. made D. forgot

【2】A. right B. left C. front D. back

【3】A. hit B. met C. passed D. followed

【4】A. wanted B. treated C. needed D. hurt

【5】A. matter B. trouble C. danger D. dangerous

【6】A. a few B. a little C. few D. little

【7】A. Looking after B. Looking into C. Looking out of D. Looking down

【8】A. afraid B. happy C. nervous D. worried

【9】A. close B. walk C. open D. drive

【10】A. Again B. Clearly C. Perhaps D. Suddenly

【11】A. picked B. dropped C. collected D. pulled

【12】A. quiet B. cool C. safe D. Clean

【13】A. their B. her C. his D. its

【14】A. working B. turning C. knocking D. setting

【15】A. back B. past C. over D. Out

查看答案和解析>>

科目: 來源: 題型:

【題目】缺詞填空

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.

查看答案和解析>>

科目: 來源: 題型:

【題目】閱讀表達(dá),閱讀下面短文,根據(jù)短文內(nèi)容回答下列問題。

Dear Nancy,

You asked about places to go and things to do in my town. Let me tell you now.

Downtown Plaza is a lot of fun. It’s a shopping area in the oldest part of town. There are some good stores and restaurants there. For example, Andrea’s Boutique is in Downtown Plaza. It’s a fun place to shop, and it has the best clothes.

My favorite restaurant in town is Nick’s Cafe. It is near my house. It’s cheap and its hamburgers are great. I like Dragon City Restaurant, too. You can eat wonderful noodles there and the beef noodles are the most delicious! You must try the dumplings, too! But the dumplings are more expensive than Nick’s.

Suburb Cinema is the best movie theatre. It has the biggest screen and the most comfortable seats. Del Ray Complex is a good place to go, too. It doesn’t have the newest movies, but the tickets are cheaper.

Anyway, there are lots of things to do and to see here. Come for a visit soon!

Kate

【1】What did Nancy want to know from Kate?

_______________________________________________________________

【2】What is Downtown Plaza?

_______________________________________________________________

【3】What kind of food can Nancy eat in town?

_______________________________________________________________

【4】Where will you go if you want to eat beef noodles?

_______________________________________________________________

【5】What are the Suburb Cinema and Del Ray Complex like ?

_______________________________________________________________

查看答案和解析>>

科目: 來源: 題型:

【題目】書面表達(dá)。

以“My family”為題寫一篇短文介紹自己的家庭。

要求: 1.字跡工整,語言通順

2. 不得在文中提到自己的真實(shí)姓名和班級。

3. 不得少于60個單詞。

查看答案和解析>>

科目: 來源: 題型:

【題目】閱讀下列短文,判斷正誤.正確的寫T,錯誤的寫F

This is John’ s room. It’s very nice. You can see a window(窗戶) in the wall. Under the window you can see a green desk. A tape player is on the desk. You can see a white bed in the room, and you can see a clock on the bed. You can see two books on the floor. Can you see any pictures on the wall? Yes, you can see two. Where is John’s cat? Oh,It’s under his bed.

【1】We can see a white desk in John’s room.

2A tape player is on the desk.

3A clock is on the floor.

4Two pictures are on the floor.

5John’s cat is under his bed.

查看答案和解析>>

科目: 來源: 題型:

【題目】根據(jù)句子意思,用括號中所給單詞的適當(dāng)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 .

查看答案和解析>>

科目: 來源: 題型:

【題目】書面表達(dá)

假如在班會課上,老師要求你介紹自己的家庭情況,請按照以下要點(diǎn)介紹。

家庭位置

離市中心不遠(yuǎn)的一個小鎮(zhèn),從陽臺上可以看到青山綠樹。

家庭成員

爸爸:技師,擅長檢查、修理電腦。

媽媽:醫(yī)生,當(dāng)人們不適時,會使他們感覺好些。

自己:社區(qū)中心的志愿者,時刻準(zhǔn)備伸出援助之手,打算邀請同學(xué)去拜訪老人。

感受

覺得……(用一句話展開)

Hello, Everyone! Let me tell you something about my family. ________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

I think he should get the award. We look forward to hearing from you soon.

Yours,

Tom

查看答案和解析>>

科目: 來源: 題型:

【題目】We all know that food makes us grow every day, but sometimes it can make us happy when we feel bad. Food such as sea fish, bananas, pumpkins and chicken can help us be happy. How can they affect (影響)our feelings?

People living by the sea look much happier than other people, because the fresh sea air helps them clear their minds and they eat a lot of sea fish. Bananas have much Vitamin B6. Having more bananas can help us make a quick decision, and become more confident (自信). Eating pumpkins can also help people get into a good feeling because it’s rich in Vitamin B6 and iron (鐵).

Are you in a bad mood (情緒)? If you are, don’t sit alone. Go to eat such happy food with your friends. Maybe you’ll feel better.

根據(jù)短文內(nèi)容,判斷下列句子正誤。正確的用“A”表示,不正確的用“B”表示。

【1】Food gives us energy and sometimes it can make us feel sad.

【2】People living by the sea look happier because they have fresh air and eat sea fish.

【3】Apples can make us more confident.

【4】Eating pumpkins can help us get into a good feeling.

【5】Vitamin B6 and iron can make us happier.

查看答案和解析>>

同步練習(xí)冊答案