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Unit 3 Same or Different？Section A
一、單項選擇
1.—When you ______ the two types of monitors，you can know more about them.
—That's true.Let me find their differences and decide which one is better.
A. operate B. compare C. search D. watch
2.—If children _____ with others very often, they will probably have tons of pressure.
—I couldn't agree more. Everyone is special.
A. compared B. have compared C. are compared D. will compare
3.—Let's _____ these two leaves! Can you tell the differences
—Their shapes look the same, but their sizes are a little different.
A. compare B. compete C. cancel D. control
4.Pandas are very ________ and ________. We all like them.
A.friendly; boring B.cute; scary C.shy; smart D.ugly; clever
5.Jenny is very ______ .Her face often turns red when she speaks.
A. active B. shy C. interesting D. scary
6.The parrot can talk and it is very _________.
A.scary B.lazy C.smart D.beautiful
7.Peter, please read the words _____.
A. silent B. loud C. aloud D. loudly
8.Jim will study abroad, so he hopes his friends can _____ the dinner party tonight.
A. hold B. finish C. leave D. attend
9.—What do you notice first about a person
—Usually their _________.
A.appearance B.appearances C.appear D.appearing
10.Don’t laugh. This is a(n) ________ question. Do you really want to leave your job
A.friendly B.amazing C.serious D.funny
二、閱讀理解
Mackensey Wilson, a 14-year-old student, never planned to do a science fair until her dogs started getting sick. Mackensey thought it might be because of the pet food. This made her want to know what chemicals(化學品) were in pet food.
To do her research, Mackensey took part in a program where students could visit a high school lab. There she learned how to use different machines. She said it was really cool to use all the instruments and learn how they worked. It was one of the parts she enjoyed the most.
Mackensey read some past studies and learned that a preservative(防腐劑) called BHT was not good for pets. It is used in a lot of pet foods. Mackensey got three popular brands of dry dog food from her friends and family: Acana, Wilderness Legend, and Wellness. She broke the food into small bits and put it in ethanol(乙醇)to find out how much BHT had been in the food. At first, she thought the brands wouldn't have any BHT because it was not listed on the package. However, she unexpectedly discovered that the brand Acana included0.101% of BHT, Wilderness Legend included 0. 124%, and Wellness included 0.104%. “If I continued this topic, my next step would be suggesting that more information be included on the nutritional labels(營養標簽) of dog foods, so that dog owners could make decisions with more knowledge about them,” she said.
Preparing for her first science fair made her nervous because she had never done such a thing before. Luckily, she met so many people with different ideas and made a lot of friends there. She said happily, “You can really learn much about science just from being in a science fair, not even winning anything, but just by going there and experiencing it.”
11.What does the underlined word "This" in Paragraph 1 refer to
A. Mackensey's interest in pet food.
B. Mackensey's visit to a high school lab.
C. Mackensey's plan to do scientific research.
D. Mackensey's dogs got sick possibly because of the pet food.
12.Why was Mackensey surprised by the result
A. She finished a difficult experiment.
B. She discovered a new type of chemical.
C. She found more BHT than she expected.
D. She found BHT was missing from the package's list.
13.What can we know about Mackensey's personality according to the passage
A. Careful, quiet and strict. B. Proud, humorous and kind.
C. Confident, active and polite. D. Clever, independent and practical.
14. Put the events about Mackensey into the correct order according to the passage.
a. Mackensey studied earlier research articles.
b. Mackensey met people with different ideas.
c. Mackensey learned to use different machines.
d. Mackensey found three brands included BHT.
e. Mackensey wondered what chemicals were in pet food.
A.c-a-d-e-b B.c-e-b-d-a C.e-c-a-d-b D.e-b-a-d-с
15.What would be the best title for the passage
A. The Pet Food B.A Teen Chemist
C. A Science Teacher D.A High School Lab
答案以及解析
一、單項選擇
1.答案：B
解析：考查動詞詞義辨析。operate操作;compare對比;search搜索;watch觀看。根據下句中的“Let me find their differences”可知，空格處表示compare“對比，比較”。故選B。
2.答案：C
解析：考查被動語態?！绻洺０押⒆雍蛣e人比較,他們可能會有很大的壓力?！曳浅Ｍ狻Ｃ總€人都很特別。從句的主語children和謂語動詞compare之間存在被動關系,被動語態的結構為"be done"。故選C。
3.答案：A
解析：根據"Can you tell the differences "可知是比較兩片樹葉,故選A。
4.答案：C
解析：句意：熊貓很害羞，也很聰明。我們都喜歡他們?？疾樾稳菰~辨析。friendly友好的； boring無聊的；cute有趣的；scary可怕的；shy害羞的；smart聰明的；ugly丑陋的；clever聰明的。根據“Pandas are very…and…We all like them.”可知，此處表達熊貓害羞，聰明，人們都喜歡他。故選C。
5.答案：B
解析：考查形容詞辨析。句意:珍妮很害羞。當她說話時,她的臉經常變紅。active 積極的;shy害羞的;interesting 有趣的;scary可怕的。根據下句“Her face often turns red when she speaks.”可知,空處應指害羞。故選B。
6.答案：C
解析：句意：這只鸚鵡會說話，而且它非常聰明。考查形容詞辨析。scary嚇人的；lazy懶惰的；smart聰明的；beautiful漂亮的。根據“The parrot can talk”可知，會說話的鸚鵡很聰明。故選C。
7.答案：C
解析：silent形容詞,“沉默的”; loud形容詞或副詞,“大聲的;大聲地”;aloud副詞,“大聲地;出聲地”;loudly副詞,“大聲地,吵鬧地”。修飾動詞read,通常用aloud,意為“讀得大聲”。故選C。
8.答案：D
解析：根據題干中的"吉姆將要出國留學"可推斷,他希望他的朋友們能"出席"晚宴。attend意為"出席;參加",符合題意。
9.答案：A
解析：句意：——關于一個人，你首先注意到的是什么？——通常是他們的外貌?？疾槊~辨析。appearance外貌；外觀，為不可數名詞，通常不加復數。appearances不符合語法規則；appear出現，似乎，動詞；appearing出現，現在分詞。根據“their”可知，此處填名詞形式，只有A選項符合。故選A。
10.答案：C
解析：句意：不要笑。這是一個嚴肅的問題。你真的想辭職嗎？考查形容詞辨析。friendly友好的；amazing令人驚異的；serious嚴肅的；funny搞笑的。根據“Don’t laugh.”及“Do you really want to leave your job ”可知，是否要辭職是個嚴肅的問題。故選C。
二、閱讀理解
11.答案：D
解析：代詞指代題。根據第一段中的“until her dogs started getting sick”和“Mackensey thought it might be because of the pet food. This made her want to know what chemicals(化學品) were in pet food”可知,這里“This”指代的是她的狗生病可能是因為寵物食品。故選D。
12.答案：C
解析：細節理解題。根據第三段中的“At first, she thought the brands wouldn't have any BHT because it was not listed on the package. However, she unexpectedly discovered… and Wellness included 0. 104%”可知, Mackensey 對實驗結果感到驚訝的原因是她發現了比預期更多的 BHT。故選C。
13.答案：D
解析：推理判斷題。根據文章中Mackensey自主進行實驗研究,發現問題并提出解決方案的過程,可推斷她是一個聰明、獨立且執行力很強的人。故選D。
14.答案：C
解析：排列順序題。解題步驟:研讀選項一確定關鍵詞短語一回文定位。Mackensey懷疑寵物食品中含有化學物質(e);然后,她在實驗室學習使用不同的機器(c);接著,她閱讀過去的研究文章(a);之后,她發現三種品牌中含有BHT(d);最后,她在科學展上遇到了很多不同想法的人(b)。正確的順序為e-c-a-d-b。故選C。
15.答案：B
解析：標題歸納題。本文主要講述了14歲的Mackensey Wilson出于對狗糧中化學成分的好奇,開展了一系列科學研究。通過實驗,她發現了一些狗糧品牌中存在未標注的BHT防腐劑,并在科學展上分享了她的發現。故選B“一位青少年化學家”。

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