びっくりするほど英語ができず、分かりません。教えてください

I'm from Mexico. You're from Brazil. He's from Japan. She's a business student. It's an exciting city. We're in the same class. They're my classmates. 2. 3. I'm I am you're = you are he's he is she's she is it's it is Nagoya. we're they're = we are they are A Complete these sentences. Then tell a partner about yourself. 1. My name is Aiko Yoshida. Possess brother is a college student. name is Matias. sister is a student here. our their GRAMMAR PLUS see page 132 adjective my your his her its from Japan. from Santiago. Angelica, but everyone calls me Angie. a student at City College. in Las Vegas. family is in name is Haruki. a really nice city. parents are in Chile right now. last name is Newton. parents are on vacation this week.

なぜ、xとyとzは0ではない という条件を加えなければいないのですか？

X 基 本 例題 26 比例式の値 y+z_z+x CHART y よって えに OLUTION 比例式は=k とおく •*•♫ 等式の証明ではなく,ここでは比例式そのものの値を求める。 y+z=z+x=x=kとおくと y+z=xk, z+x=yk, x+y=zk 2 y 一母は0でないから xyz=0 +z_z+x=x+y=k とおくと この3つの式からんの値を求める。 辺々を加えると、共通因数x+y+z が両辺 にできる。これを手がかりとして,x+y+z またはkの値が求められる。求め の値に対しては、(分母)≠0 (x=0,y0,z0) を忘れずに確認する。 ...... y+z=xh +② +③ から x+y 2 2 ■] k=2 のとき ① ② ③ から のとき,この式の値を求めよ。 ①,z+x=yk ・②, x+y=zh (k-2)(x+y+z)=0 k=2 または x+y+z=0 2(x+y+z)=(x+y+z)k y+z=2x ④-⑤から これを⑥に代入すると したがって x=y=z ④,z+x=2y y-x=2x-2y k=1 x+x=2z -=-1 FORM (3) 2, -1 ⑤, x+y=2z ...... (6) よって x=y よって x=2 |基本 25 33 00 ←xyz=0⇔ x=0 かつy=0 かつz0 x=y=z かつ xyz≠0 を満たす実数x,y,zの組は存在する。例えば x=y=z= 2]x+y+z=0 のとき y+z=-x よって _y+z -x 例えば, x=3, y z=-2 など, xy かつ x+y+z=1 たす実数x,y,z 存在する。 x x 1], [2] から 求める式の値は 43 ◆x+y+zが0になる 能性もあるから,両辺 これで割ってはいけ SHUSH INFORMATION ①~③の左辺は,x,y,zの循環形 (x→y →z →x とおくと次の式が得られ なっている。 循環形の式は、 上の解答のように, 辺々を加えたり引いたりすると くいくことが多い。一般にけ 演文理観/ 要領で文字を減らすのが原則

答えがなく分かりません。お願いします

Is Alexa's class in the morning? Are you and Alexa in the same class? Are your classes interesting? Is B: Yes, he A Complete the conversations. Then practice with a partner. 1. A: Mr. Jones from the United States? 3. A: from Baltimore. English class at 2:00? 2. A: Yes, it is. Yes, we are. Yes, they are. B: No, it No, it's not./No, it isn't. No, we're not./No, we aren't. No, they're not./No, they aren't. GRAMMAR PLUS see page 132 at 3:00. B: Yes, we 4. A: B: No, they you and Giovanna from Italy? from Milan. Mr. and Mrs. Flores Brazilian? Peruvian. B Answer these questions. If you answer "no," give the correct information. Then ask your partner the questions. 1. Are you from the United States? 2. Is your teacher from Canada? 3. Is your English class in the morning? 4. Are you free after class?

下線部ア、が指しているものは具体的に日本語で何か分からないので教えてほしいです!

10 Meg: Have you ever heard of the IUCN Red List? Kaito No, I've never heard of it. What is it? Meg : The Red List gives us information about endangered animals, birds, plants, and so on. Kaito: What animals are on the list? Meg : Pandas, cheetahs, and gorillas, for example. Kaito Really? I didn't know that. Meg: Some animals and birds in Japan are also on it. I want everyone to know that. Let us give you one example from the Red List. It is the crested ibis, or toki in Japanese. Up until the Meiji era, we could see many ibises around this country. However, the population of ibises in Japan rapidly decreased. People hunted their beautiful feathers, and development destroyed their environment. It was difficult for them for them to survive. ア Some gorillas are also on the Red List. According to a study, the largest gorillas in the Congo may die out soon. There are many reasons, such as hunting, logging, and mining. 15 Surprisingly, our electronic devices are one of these reasons. To make these devices, we need some special metals. Some of these metals come from the gorillas' habitat. (3) If we use more devices, more of their habitat may be destroyed. These gorillas may not survive. We have to understand this.

蛍光ペンで引いている部分なのですが、例題の問題とpracticeの問題とどちらも係数は正なのに例題の方には＝がないのはなぜですか。

366 0000 t 重要 例題 21 ベクトルの大きさと絶対不等式 |||=1,|8|=2, 2 とするとき, ka+t6|>1 がすべての美数に して成り立つような実数kの値の範囲を求めよ。 CHART SOLUTION として扱う k+161 は ka+t6 > 12 ...... ① と同値である。①を計算して整理する と (tについての2次式)>0 の形になる。 この式に対し, 数学Ⅰで学習した次のことを利用し,kの値の範囲を求める。 の2次不等式 at + bt+c>0 がすべての実数tについて成り立つ ⇔ a>0かつb-4ac < 0 解 ka + to ≧0であるから, ka+t >1 は |ka+t >1 ①と同値である。 |kã+tb|²=k²|a|²+2ktā·b+t²|b|² ここで ||=1,||=2=√2であるから |ka+tb|²=k²+2√/2 kt +4t² k²+2√√√2 kt +4t²>1 ここで よって したがって よって, ① から すなわち 4t2+2√2kt+k²-1>0 ...... (2) ② がすべての実数tに対して成り立つための条件は2次 方程式 412+2√2kt+k²-1=0 の判別式をDとするとの 係数は正であるから D<0 D=(√2k)²-4×(k²-1)=-2k²+4 -2k² +4<0 ゆえに k<-√2,√2<k k²-2>0 INFORMATION 上の CHART & SOLUTION で扱った絶対不等式は,関数 y=ate+bt+c のグラフが常に「t軸より上側」にある, と して考えるとわかりやすい。 A> 0, B>0 のとき A>BA¹>B² 問題の不等式の条件に ② がすべての実数 対して成り立つこと。 ◆D< 0 が条件。 ←(k+√2)(k-√2) 0 y=a+b+ [a>0b>b²-4ac0 PRACTICE･･・･ 21④ |a|=2,|6|=1,|a-6|=√3 とするとき, ka + to z2 がすべての実数に対し り立つような実数kの値の範囲を求めよ。

【至急】この2枚目の写真にthereとthepoliceが主語が一致していないとありますがどいうことですか？ there＝彼ら＝警察 thepolice＝警察 と考えてしまって、何が違うのかおしえていただけると嬉しいです。

198 発展 There ( the mass media for cooperation. 1 being 2 having 3 is 4 seems ) no available information on the crime, the police asked +00 moitos? the sa 16 (*)

青線の部分について、本文ではこのようになっているのですが文構造がわかりません。

repeat something you miss. If the teacher's going too fast, chances are your classmates will also be relieved to hear the information again. If you don't want

TOEICの文法の練習です 解いてみたので解説してほしいです よろしくお願いします

110. Each employee must coordinate with management so that ------- time off can be properly scheduled. (A) alone (B) individual (C) isolating (D) separated 111. The cost of building Juniper High Towers exceeded the contractor's original ------- by over £5,000.00. (A) estimating (B) estimate (C) estimated (D) estimator 112. At Links Fine Meats, we pride on providing the highest-quality products on the market. (A) oneself (B) yourselves (C) itself (D) ourselves 113. he is usually quiet around the office, Mr. Heineman is known for his witty and engaging public speeches. (A) Although (B) Otherwise (C) Despite (D) Instead 114. Ancient Chitimacha baskets are ------- featured in the Louisiana Museum of Archeology. (A) prominent (B) prominently (C) prominence (D) prominences 115. tea and coffee are available in the lobby for all guests of the Farrison Hotel. (A) Compliment (B) To compliment (C) Complimented (D) Complimentary 116. 117. representatives of Light Cloud Airlines, flights are rarely overbooked. 119. (A) As opposed to (B) In addition to (C) According to (D) Prior to Mr. Krause will reorganize the supply room ------- the cabinets are delivered. (A) overall (B) due to (C) once (D) soon 118. By completing employee-satisfaction surveys anonymously, workers can more state their concerns about the workplace. (A) wholly (B) openly (C) favorably (D) laboriously The final blueprints must ------- by Ms. Ito after the final draft is produced. (A) approve (B) be approved (C) approving (D) to approve 120. This sewing workshop is ideal for beginner tailors ------- professionals who would like to refresh their knowledge. (A) but (B) either (C) as well as (D) additionally 121. All posters and flyers must be removed from the bulletin board ------- 48 hours after the event has occurred. (A) within (B) among (C) unless (D) while 122. The technology used in pots by Claypol Housewares keeps the handles from getting too hot to touch. (A) warm (B) frequent (C) unattached (D) innovative 123. There are a number of free Web-based ------- that provide tips for locating information in historical databases. (A) tutorials (B) tutoring (C) tutored (D) tutor 124. The person hired must be able to adapt ------to changes in work assignments and schedules. (A) readies (B) readily (C) readiness (D) ready 125. Organizational behavior specialist Ray Majory believes a good sense of humor in a leader can increase the quality of ------- in the team. (A) declaration (B) statement (C) message (D) communication 126. Portsmouth's agricultural industry has always found ways to itself by growing different crops and finding new markets. (A) reinvest (B) reuse (C) reassess (D) reinvent 127. While some countries have made huge investments in the Caribbean lately, others have reduced -------. (A) themselves (B) theirs (C) their (D) they 128. The ethics committee cited the potential benefits of the research project while ------- its high cost. (A) acknowledging (B) to acknowledge (C) has acknowledged (D) acknowledge 129. The report describes the environmental impact on lakes and rivers of using ------- energy sources. (A) together (B) hopeful (C) regulatory (D) renewable 130. Any decorations on the ceilings or walls must be fully removed, including any material used to them to the surfaces. (A) adhere (B) attract (C) construct (D) sustain

直説法と、仮定法の違いがピンときません。教えてほしいです

わからないので、よろしくお願い致します。

Questions 34-37 refer to the following notice. If you require assistance with something while you are in town, do not 34. on its services. the collection and sending of parcels, The staff there are generally responsible 36. restaurant reservations, arranging vehicle hire, purchasing tickets for events and even giving street directions. 34. (A) The hotel offers guests a wide range of facilities. Simply --- #9 on the phone in your room will put you in touch with one of the concierge 37. staff. If you would like to drop by the concierge desk in person, you will find it on your left when you enter the hotel lobby. (B) The concierge desk is attended 24 hours a day. (C) There is a tourist information center at the station. (D) Thank you for choosing to visit beautiful Miami Beach. 35. (A) attempt (B) hesitate (C) admit (D) tend A B C D A B C D 36. (A) in (B) to 35. (C) with (D) for to rely 37. (A) dialed (B) dial (C) dialing (D) dials A B C D A B CO